Slab tear as a cause of coeval arc-intraplate volcanism in the Alexandra Volcanic Group, New Zealand

Coeval arc and intraplate basaltic magmas are intimately linked to back-arc volcanism in the Alexandra Volcanic Group of North Island, New Zealand. We present a comprehensive suite of new elemental and SrNd isotope geochemical data in the context of detailed new stratigraphy to resolve the fine-scal...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	McLeod, O.E. [verfasserIn] Brenna, M. [verfasserIn] Briggs, R.M. [verfasserIn] Pittari, A. [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2021

Schlagwörter:	Basaltic volcanism Intraplate volcanism Arc volcanism Slab tear New Zealand

Übergeordnetes Werk:	Enthalten in: Lithos - Amsterdam [u.a.] : Elsevier Science, 1968, 408
Übergeordnetes Werk:	volume:408

DOI / URN:	10.1016/j.lithos.2021.106564

Katalog-ID:	ELV007171080

Internformat


LEADER	01000caa a22002652 4500
001	ELV007171080
003	DE-627
005	20230524151005.0
007	cr uuu---uuuuu
008	230506s2021 xx \|\|\|\|\|o 00\| \|\|eng c
024	7		\|a 10.1016/j.lithos.2021.106564 \|2 doi
035			\|a (DE-627)ELV007171080
035			\|a (ELSEVIER)S0024-4937(21)00607-1
040			\|a DE-627 \|b ger \|c DE-627 \|e rda
041			\|a eng
082	0	4	\|a 550 \|q DE-600
084			\|a 38.25 \|2 bkl
084			\|a 38.30 \|2 bkl
084			\|a 38.32 \|2 bkl
100	1		\|a McLeod, O.E. \|e verfasserin \|4 aut
245	1	0	\|a Slab tear as a cause of coeval arc-intraplate volcanism in the Alexandra Volcanic Group, New Zealand
264		1	\|c 2021
336			\|a nicht spezifiziert \|b zzz \|2 rdacontent
337			\|a Computermedien \|b c \|2 rdamedia
338			\|a Online-Ressource \|b cr \|2 rdacarrier
520			\|a Coeval arc and intraplate basaltic magmas are intimately linked to back-arc volcanism in the Alexandra Volcanic Group of North Island, New Zealand. We present a comprehensive suite of new elemental and SrNd isotope geochemical data in the context of detailed new stratigraphy to resolve the fine-scale systematics of arc-intraplate magmatism at large basaltic stratovolcanoes (Pirongia and Karioi) and their surrounding vents. Time-chemistry reconstructions for Pirongia reveal cyclical contamination of arc magmas by deeper set intraplate sources, with each cycle ending in eruptions of lavas with transitional compositions. Further from the trench at Karioi, the magma system is characterised by on-off alternations of arc and intraplate basalt that eventually transition to arc-dominant magmatism. A two-component model is proposed to explain all geochemical variation in the field through mixing between arc and intraplate sources. Spatio-chemical data along a 65 km transect of the field indicates that as distance from the trench increases, the arc signature wanes and intraplate becomes increasingly prevalent in terms of erupted composition and volume. We conclude that trough-normal slab tear has facilitated the vertical and lateral ascension of asthenosphere into the mantle wedge, causing decompression melting to form intraplate basalts, and triggering secondary melting of the wedge to generate arc basalt. The Alexandra Volcanic Group is one of only several fields on Earth where arc and intraplate basalt are documented from the same vent systems.
650		4	\|a Basaltic volcanism
650		4	\|a Intraplate volcanism
650		4	\|a Arc volcanism
650		4	\|a Slab tear
650		4	\|a New Zealand
700	1		\|a Brenna, M. \|e verfasserin \|4 aut
700	1		\|a Briggs, R.M. \|e verfasserin \|4 aut
700	1		\|a Pittari, A. \|e verfasserin \|4 aut
773	0	8	\|i Enthalten in \|t Lithos \|d Amsterdam [u.a.] : Elsevier Science, 1968 \|g 408 \|h Online-Ressource \|w (DE-627)303393181 \|w (DE-600)1494884-9 \|w (DE-576)081952880 \|x 1872-6143 \|7 nnns
773	1	8	\|g volume:408
912			\|a GBV_USEFLAG_U
912			\|a SYSFLAG_U
912			\|a GBV_ELV
912			\|a SSG-OPC-GGO
912			\|a GBV_ILN_20
912			\|a GBV_ILN_22
912			\|a GBV_ILN_23
912			\|a GBV_ILN_24
912			\|a GBV_ILN_31
912			\|a GBV_ILN_32
912			\|a GBV_ILN_40
912			\|a GBV_ILN_60
912			\|a GBV_ILN_62
912			\|a GBV_ILN_63
912			\|a GBV_ILN_65
912			\|a GBV_ILN_69
912			\|a GBV_ILN_70
912			\|a GBV_ILN_73
912			\|a GBV_ILN_74
912			\|a GBV_ILN_90
912			\|a GBV_ILN_95
912			\|a GBV_ILN_100
912			\|a GBV_ILN_105
912			\|a GBV_ILN_110
912			\|a GBV_ILN_150
912			\|a GBV_ILN_151
912			\|a GBV_ILN_224
912			\|a GBV_ILN_370
912			\|a GBV_ILN_602
912			\|a GBV_ILN_702
912			\|a GBV_ILN_2003
912			\|a GBV_ILN_2004
912			\|a GBV_ILN_2005
912			\|a GBV_ILN_2011
912			\|a GBV_ILN_2014
912			\|a GBV_ILN_2015
912			\|a GBV_ILN_2020
912			\|a GBV_ILN_2021
912			\|a GBV_ILN_2025
912			\|a GBV_ILN_2027
912			\|a GBV_ILN_2034
912			\|a GBV_ILN_2038
912			\|a GBV_ILN_2044
912			\|a GBV_ILN_2048
912			\|a GBV_ILN_2049
912			\|a GBV_ILN_2050
912			\|a GBV_ILN_2056
912			\|a GBV_ILN_2059
912			\|a GBV_ILN_2061
912			\|a GBV_ILN_2064
912			\|a GBV_ILN_2065
912			\|a GBV_ILN_2068
912			\|a GBV_ILN_2111
912			\|a GBV_ILN_2112
912			\|a GBV_ILN_2113
912			\|a GBV_ILN_2118
912			\|a GBV_ILN_2122
912			\|a GBV_ILN_2129
912			\|a GBV_ILN_2143
912			\|a GBV_ILN_2147
912			\|a GBV_ILN_2148
912			\|a GBV_ILN_2152
912			\|a GBV_ILN_2153
912			\|a GBV_ILN_2190
912			\|a GBV_ILN_2336
912			\|a GBV_ILN_2507
912			\|a GBV_ILN_2522
912			\|a GBV_ILN_4035
912			\|a GBV_ILN_4037
912			\|a GBV_ILN_4112
912			\|a GBV_ILN_4125
912			\|a GBV_ILN_4126
912			\|a GBV_ILN_4242
912			\|a GBV_ILN_4251
912			\|a GBV_ILN_4305
912			\|a GBV_ILN_4313
912			\|a GBV_ILN_4323
912			\|a GBV_ILN_4324
912			\|a GBV_ILN_4325
912			\|a GBV_ILN_4326
912			\|a GBV_ILN_4333
912			\|a GBV_ILN_4334
912			\|a GBV_ILN_4335
912			\|a GBV_ILN_4338
912			\|a GBV_ILN_4393
936	b	k	\|a 38.25 \|j Petrologie: Allgemeines
936	b	k	\|a 38.30 \|j Mineralogie
936	b	k	\|a 38.32 \|j Geochemie
951			\|a AR
952			\|d 408

Indexfelder

author_variant	o m om m b mb r b rb a p ap
matchkey_str	article:18726143:2021----::lberscuefovlritaltvlaimnhaeada
hierarchy_sort_str	2021
bklnumber	38.25 38.30 38.32
publishDate	2021
allfields	10.1016/j.lithos.2021.106564 doi (DE-627)ELV007171080 (ELSEVIER)S0024-4937(21)00607-1 DE-627 ger DE-627 rda eng 550 DE-600 38.25 bkl 38.30 bkl 38.32 bkl McLeod, O.E. verfasserin aut Slab tear as a cause of coeval arc-intraplate volcanism in the Alexandra Volcanic Group, New Zealand 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Coeval arc and intraplate basaltic magmas are intimately linked to back-arc volcanism in the Alexandra Volcanic Group of North Island, New Zealand. We present a comprehensive suite of new elemental and SrNd isotope geochemical data in the context of detailed new stratigraphy to resolve the fine-scale systematics of arc-intraplate magmatism at large basaltic stratovolcanoes (Pirongia and Karioi) and their surrounding vents. Time-chemistry reconstructions for Pirongia reveal cyclical contamination of arc magmas by deeper set intraplate sources, with each cycle ending in eruptions of lavas with transitional compositions. Further from the trench at Karioi, the magma system is characterised by on-off alternations of arc and intraplate basalt that eventually transition to arc-dominant magmatism. A two-component model is proposed to explain all geochemical variation in the field through mixing between arc and intraplate sources. Spatio-chemical data along a 65 km transect of the field indicates that as distance from the trench increases, the arc signature wanes and intraplate becomes increasingly prevalent in terms of erupted composition and volume. We conclude that trough-normal slab tear has facilitated the vertical and lateral ascension of asthenosphere into the mantle wedge, causing decompression melting to form intraplate basalts, and triggering secondary melting of the wedge to generate arc basalt. The Alexandra Volcanic Group is one of only several fields on Earth where arc and intraplate basalt are documented from the same vent systems. Basaltic volcanism Intraplate volcanism Arc volcanism Slab tear New Zealand Brenna, M. verfasserin aut Briggs, R.M. verfasserin aut Pittari, A. verfasserin aut Enthalten in Lithos Amsterdam [u.a.] : Elsevier Science, 1968 408 Online-Ressource (DE-627)303393181 (DE-600)1494884-9 (DE-576)081952880 1872-6143 nnns volume:408 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 38.25 Petrologie: Allgemeines 38.30 Mineralogie 38.32 Geochemie AR 408
spelling	10.1016/j.lithos.2021.106564 doi (DE-627)ELV007171080 (ELSEVIER)S0024-4937(21)00607-1 DE-627 ger DE-627 rda eng 550 DE-600 38.25 bkl 38.30 bkl 38.32 bkl McLeod, O.E. verfasserin aut Slab tear as a cause of coeval arc-intraplate volcanism in the Alexandra Volcanic Group, New Zealand 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Coeval arc and intraplate basaltic magmas are intimately linked to back-arc volcanism in the Alexandra Volcanic Group of North Island, New Zealand. We present a comprehensive suite of new elemental and SrNd isotope geochemical data in the context of detailed new stratigraphy to resolve the fine-scale systematics of arc-intraplate magmatism at large basaltic stratovolcanoes (Pirongia and Karioi) and their surrounding vents. Time-chemistry reconstructions for Pirongia reveal cyclical contamination of arc magmas by deeper set intraplate sources, with each cycle ending in eruptions of lavas with transitional compositions. Further from the trench at Karioi, the magma system is characterised by on-off alternations of arc and intraplate basalt that eventually transition to arc-dominant magmatism. A two-component model is proposed to explain all geochemical variation in the field through mixing between arc and intraplate sources. Spatio-chemical data along a 65 km transect of the field indicates that as distance from the trench increases, the arc signature wanes and intraplate becomes increasingly prevalent in terms of erupted composition and volume. We conclude that trough-normal slab tear has facilitated the vertical and lateral ascension of asthenosphere into the mantle wedge, causing decompression melting to form intraplate basalts, and triggering secondary melting of the wedge to generate arc basalt. The Alexandra Volcanic Group is one of only several fields on Earth where arc and intraplate basalt are documented from the same vent systems. Basaltic volcanism Intraplate volcanism Arc volcanism Slab tear New Zealand Brenna, M. verfasserin aut Briggs, R.M. verfasserin aut Pittari, A. verfasserin aut Enthalten in Lithos Amsterdam [u.a.] : Elsevier Science, 1968 408 Online-Ressource (DE-627)303393181 (DE-600)1494884-9 (DE-576)081952880 1872-6143 nnns volume:408 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 38.25 Petrologie: Allgemeines 38.30 Mineralogie 38.32 Geochemie AR 408
allfields_unstemmed	10.1016/j.lithos.2021.106564 doi (DE-627)ELV007171080 (ELSEVIER)S0024-4937(21)00607-1 DE-627 ger DE-627 rda eng 550 DE-600 38.25 bkl 38.30 bkl 38.32 bkl McLeod, O.E. verfasserin aut Slab tear as a cause of coeval arc-intraplate volcanism in the Alexandra Volcanic Group, New Zealand 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Coeval arc and intraplate basaltic magmas are intimately linked to back-arc volcanism in the Alexandra Volcanic Group of North Island, New Zealand. We present a comprehensive suite of new elemental and SrNd isotope geochemical data in the context of detailed new stratigraphy to resolve the fine-scale systematics of arc-intraplate magmatism at large basaltic stratovolcanoes (Pirongia and Karioi) and their surrounding vents. Time-chemistry reconstructions for Pirongia reveal cyclical contamination of arc magmas by deeper set intraplate sources, with each cycle ending in eruptions of lavas with transitional compositions. Further from the trench at Karioi, the magma system is characterised by on-off alternations of arc and intraplate basalt that eventually transition to arc-dominant magmatism. A two-component model is proposed to explain all geochemical variation in the field through mixing between arc and intraplate sources. Spatio-chemical data along a 65 km transect of the field indicates that as distance from the trench increases, the arc signature wanes and intraplate becomes increasingly prevalent in terms of erupted composition and volume. We conclude that trough-normal slab tear has facilitated the vertical and lateral ascension of asthenosphere into the mantle wedge, causing decompression melting to form intraplate basalts, and triggering secondary melting of the wedge to generate arc basalt. The Alexandra Volcanic Group is one of only several fields on Earth where arc and intraplate basalt are documented from the same vent systems. Basaltic volcanism Intraplate volcanism Arc volcanism Slab tear New Zealand Brenna, M. verfasserin aut Briggs, R.M. verfasserin aut Pittari, A. verfasserin aut Enthalten in Lithos Amsterdam [u.a.] : Elsevier Science, 1968 408 Online-Ressource (DE-627)303393181 (DE-600)1494884-9 (DE-576)081952880 1872-6143 nnns volume:408 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 38.25 Petrologie: Allgemeines 38.30 Mineralogie 38.32 Geochemie AR 408
allfieldsGer	10.1016/j.lithos.2021.106564 doi (DE-627)ELV007171080 (ELSEVIER)S0024-4937(21)00607-1 DE-627 ger DE-627 rda eng 550 DE-600 38.25 bkl 38.30 bkl 38.32 bkl McLeod, O.E. verfasserin aut Slab tear as a cause of coeval arc-intraplate volcanism in the Alexandra Volcanic Group, New Zealand 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Coeval arc and intraplate basaltic magmas are intimately linked to back-arc volcanism in the Alexandra Volcanic Group of North Island, New Zealand. We present a comprehensive suite of new elemental and SrNd isotope geochemical data in the context of detailed new stratigraphy to resolve the fine-scale systematics of arc-intraplate magmatism at large basaltic stratovolcanoes (Pirongia and Karioi) and their surrounding vents. Time-chemistry reconstructions for Pirongia reveal cyclical contamination of arc magmas by deeper set intraplate sources, with each cycle ending in eruptions of lavas with transitional compositions. Further from the trench at Karioi, the magma system is characterised by on-off alternations of arc and intraplate basalt that eventually transition to arc-dominant magmatism. A two-component model is proposed to explain all geochemical variation in the field through mixing between arc and intraplate sources. Spatio-chemical data along a 65 km transect of the field indicates that as distance from the trench increases, the arc signature wanes and intraplate becomes increasingly prevalent in terms of erupted composition and volume. We conclude that trough-normal slab tear has facilitated the vertical and lateral ascension of asthenosphere into the mantle wedge, causing decompression melting to form intraplate basalts, and triggering secondary melting of the wedge to generate arc basalt. The Alexandra Volcanic Group is one of only several fields on Earth where arc and intraplate basalt are documented from the same vent systems. Basaltic volcanism Intraplate volcanism Arc volcanism Slab tear New Zealand Brenna, M. verfasserin aut Briggs, R.M. verfasserin aut Pittari, A. verfasserin aut Enthalten in Lithos Amsterdam [u.a.] : Elsevier Science, 1968 408 Online-Ressource (DE-627)303393181 (DE-600)1494884-9 (DE-576)081952880 1872-6143 nnns volume:408 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 38.25 Petrologie: Allgemeines 38.30 Mineralogie 38.32 Geochemie AR 408
allfieldsSound	10.1016/j.lithos.2021.106564 doi (DE-627)ELV007171080 (ELSEVIER)S0024-4937(21)00607-1 DE-627 ger DE-627 rda eng 550 DE-600 38.25 bkl 38.30 bkl 38.32 bkl McLeod, O.E. verfasserin aut Slab tear as a cause of coeval arc-intraplate volcanism in the Alexandra Volcanic Group, New Zealand 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Coeval arc and intraplate basaltic magmas are intimately linked to back-arc volcanism in the Alexandra Volcanic Group of North Island, New Zealand. We present a comprehensive suite of new elemental and SrNd isotope geochemical data in the context of detailed new stratigraphy to resolve the fine-scale systematics of arc-intraplate magmatism at large basaltic stratovolcanoes (Pirongia and Karioi) and their surrounding vents. Time-chemistry reconstructions for Pirongia reveal cyclical contamination of arc magmas by deeper set intraplate sources, with each cycle ending in eruptions of lavas with transitional compositions. Further from the trench at Karioi, the magma system is characterised by on-off alternations of arc and intraplate basalt that eventually transition to arc-dominant magmatism. A two-component model is proposed to explain all geochemical variation in the field through mixing between arc and intraplate sources. Spatio-chemical data along a 65 km transect of the field indicates that as distance from the trench increases, the arc signature wanes and intraplate becomes increasingly prevalent in terms of erupted composition and volume. We conclude that trough-normal slab tear has facilitated the vertical and lateral ascension of asthenosphere into the mantle wedge, causing decompression melting to form intraplate basalts, and triggering secondary melting of the wedge to generate arc basalt. The Alexandra Volcanic Group is one of only several fields on Earth where arc and intraplate basalt are documented from the same vent systems. Basaltic volcanism Intraplate volcanism Arc volcanism Slab tear New Zealand Brenna, M. verfasserin aut Briggs, R.M. verfasserin aut Pittari, A. verfasserin aut Enthalten in Lithos Amsterdam [u.a.] : Elsevier Science, 1968 408 Online-Ressource (DE-627)303393181 (DE-600)1494884-9 (DE-576)081952880 1872-6143 nnns volume:408 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 38.25 Petrologie: Allgemeines 38.30 Mineralogie 38.32 Geochemie AR 408
language	English
source	Enthalten in Lithos 408 volume:408
sourceStr	Enthalten in Lithos 408 volume:408
format_phy_str_mv	Article
bklname	Petrologie: Allgemeines Mineralogie Geochemie
institution	findex.gbv.de
topic_facet	Basaltic volcanism Intraplate volcanism Arc volcanism Slab tear New Zealand
dewey-raw	550
isfreeaccess_bool	false
container_title	Lithos
authorswithroles_txt_mv	McLeod, O.E. @@aut@@ Brenna, M. @@aut@@ Briggs, R.M. @@aut@@ Pittari, A. @@aut@@
publishDateDaySort_date	2021-01-01T00:00:00Z
hierarchy_top_id	303393181
dewey-sort	3550
id	ELV007171080
language_de	englisch
fullrecord	<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">ELV007171080</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230524151005.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">230506s2021 xx \|\|\|\|\|o 00\| \|\|eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1016/j.lithos.2021.106564</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)ELV007171080</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(ELSEVIER)S0024-4937(21)00607-1</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rda</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">550</subfield><subfield code="q">DE-600</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">38.25</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">38.30</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">38.32</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">McLeod, O.E.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Slab tear as a cause of coeval arc-intraplate volcanism in the Alexandra Volcanic Group, New Zealand</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2021</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Coeval arc and intraplate basaltic magmas are intimately linked to back-arc volcanism in the Alexandra Volcanic Group of North Island, New Zealand. We present a comprehensive suite of new elemental and SrNd isotope geochemical data in the context of detailed new stratigraphy to resolve the fine-scale systematics of arc-intraplate magmatism at large basaltic stratovolcanoes (Pirongia and Karioi) and their surrounding vents. Time-chemistry reconstructions for Pirongia reveal cyclical contamination of arc magmas by deeper set intraplate sources, with each cycle ending in eruptions of lavas with transitional compositions. Further from the trench at Karioi, the magma system is characterised by on-off alternations of arc and intraplate basalt that eventually transition to arc-dominant magmatism. A two-component model is proposed to explain all geochemical variation in the field through mixing between arc and intraplate sources. Spatio-chemical data along a 65 km transect of the field indicates that as distance from the trench increases, the arc signature wanes and intraplate becomes increasingly prevalent in terms of erupted composition and volume. We conclude that trough-normal slab tear has facilitated the vertical and lateral ascension of asthenosphere into the mantle wedge, causing decompression melting to form intraplate basalts, and triggering secondary melting of the wedge to generate arc basalt. The Alexandra Volcanic Group is one of only several fields on Earth where arc and intraplate basalt are documented from the same vent systems.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Basaltic volcanism</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Intraplate volcanism</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Arc volcanism</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Slab tear</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">New Zealand</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Brenna, M.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Briggs, R.M.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Pittari, A.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Lithos</subfield><subfield code="d">Amsterdam [u.a.] : Elsevier Science, 1968</subfield><subfield code="g">408</subfield><subfield code="h">Online-Ressource</subfield><subfield code="w">(DE-627)303393181</subfield><subfield code="w">(DE-600)1494884-9</subfield><subfield code="w">(DE-576)081952880</subfield><subfield code="x">1872-6143</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:408</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ELV</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OPC-GGO</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_20</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_22</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_23</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_24</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_31</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_32</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_40</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_60</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_62</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_63</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_65</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_69</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_70</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_73</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_74</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_90</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_95</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_100</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_105</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_110</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_150</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_151</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_224</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_370</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_602</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_702</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2003</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2004</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2005</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2011</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2014</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2015</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2020</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2021</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2025</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2027</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2034</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2038</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2044</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2048</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2049</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2050</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2056</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2059</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2061</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2064</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2065</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2068</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2111</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2112</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2113</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2118</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2122</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2129</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2143</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2147</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2148</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2152</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2153</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2190</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2336</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2507</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2522</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4035</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4037</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4112</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4125</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4126</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4242</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4251</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4305</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4313</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4323</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4324</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4325</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4326</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4333</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4334</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4335</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4338</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4393</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">38.25</subfield><subfield code="j">Petrologie: Allgemeines</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">38.30</subfield><subfield code="j">Mineralogie</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">38.32</subfield><subfield code="j">Geochemie</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">408</subfield></datafield></record></collection>
author	McLeod, O.E.
spellingShingle	McLeod, O.E. ddc 550 bkl 38.25 bkl 38.30 bkl 38.32 misc Basaltic volcanism misc Intraplate volcanism misc Arc volcanism misc Slab tear misc New Zealand Slab tear as a cause of coeval arc-intraplate volcanism in the Alexandra Volcanic Group, New Zealand
authorStr	McLeod, O.E.
ppnlink_with_tag_str_mv	@@773@@(DE-627)303393181
format	electronic Article
dewey-ones	550 - Earth sciences
delete_txt_mv	keep
author_role	aut aut aut aut
collection	elsevier
remote_str	true
illustrated	Not Illustrated
issn	1872-6143
topic_title	550 DE-600 38.25 bkl 38.30 bkl 38.32 bkl Slab tear as a cause of coeval arc-intraplate volcanism in the Alexandra Volcanic Group, New Zealand Basaltic volcanism Intraplate volcanism Arc volcanism Slab tear New Zealand
topic	ddc 550 bkl 38.25 bkl 38.30 bkl 38.32 misc Basaltic volcanism misc Intraplate volcanism misc Arc volcanism misc Slab tear misc New Zealand
topic_unstemmed	ddc 550 bkl 38.25 bkl 38.30 bkl 38.32 misc Basaltic volcanism misc Intraplate volcanism misc Arc volcanism misc Slab tear misc New Zealand
topic_browse	ddc 550 bkl 38.25 bkl 38.30 bkl 38.32 misc Basaltic volcanism misc Intraplate volcanism misc Arc volcanism misc Slab tear misc New Zealand
format_facet	Elektronische Aufsätze Aufsätze Elektronische Ressource
format_main_str_mv	Text Zeitschrift/Artikel
carriertype_str_mv	cr
hierarchy_parent_title	Lithos
hierarchy_parent_id	303393181
dewey-tens	550 - Earth sciences & geology
hierarchy_top_title	Lithos
isfreeaccess_txt	false
familylinks_str_mv	(DE-627)303393181 (DE-600)1494884-9 (DE-576)081952880
title	Slab tear as a cause of coeval arc-intraplate volcanism in the Alexandra Volcanic Group, New Zealand
ctrlnum	(DE-627)ELV007171080 (ELSEVIER)S0024-4937(21)00607-1
title_full	Slab tear as a cause of coeval arc-intraplate volcanism in the Alexandra Volcanic Group, New Zealand
author_sort	McLeod, O.E.
journal	Lithos
journalStr	Lithos
lang_code	eng
isOA_bool	false
dewey-hundreds	500 - Science
recordtype	marc
publishDateSort	2021
contenttype_str_mv	zzz
author_browse	McLeod, O.E. Brenna, M. Briggs, R.M. Pittari, A.
container_volume	408
class	550 DE-600 38.25 bkl 38.30 bkl 38.32 bkl
format_se	Elektronische Aufsätze
author-letter	McLeod, O.E.
doi_str_mv	10.1016/j.lithos.2021.106564
dewey-full	550
author2-role	verfasserin
title_sort	slab tear as a cause of coeval arc-intraplate volcanism in the alexandra volcanic group, new zealand
title_auth	Slab tear as a cause of coeval arc-intraplate volcanism in the Alexandra Volcanic Group, New Zealand
abstract	Coeval arc and intraplate basaltic magmas are intimately linked to back-arc volcanism in the Alexandra Volcanic Group of North Island, New Zealand. We present a comprehensive suite of new elemental and SrNd isotope geochemical data in the context of detailed new stratigraphy to resolve the fine-scale systematics of arc-intraplate magmatism at large basaltic stratovolcanoes (Pirongia and Karioi) and their surrounding vents. Time-chemistry reconstructions for Pirongia reveal cyclical contamination of arc magmas by deeper set intraplate sources, with each cycle ending in eruptions of lavas with transitional compositions. Further from the trench at Karioi, the magma system is characterised by on-off alternations of arc and intraplate basalt that eventually transition to arc-dominant magmatism. A two-component model is proposed to explain all geochemical variation in the field through mixing between arc and intraplate sources. Spatio-chemical data along a 65 km transect of the field indicates that as distance from the trench increases, the arc signature wanes and intraplate becomes increasingly prevalent in terms of erupted composition and volume. We conclude that trough-normal slab tear has facilitated the vertical and lateral ascension of asthenosphere into the mantle wedge, causing decompression melting to form intraplate basalts, and triggering secondary melting of the wedge to generate arc basalt. The Alexandra Volcanic Group is one of only several fields on Earth where arc and intraplate basalt are documented from the same vent systems.
abstractGer	Coeval arc and intraplate basaltic magmas are intimately linked to back-arc volcanism in the Alexandra Volcanic Group of North Island, New Zealand. We present a comprehensive suite of new elemental and SrNd isotope geochemical data in the context of detailed new stratigraphy to resolve the fine-scale systematics of arc-intraplate magmatism at large basaltic stratovolcanoes (Pirongia and Karioi) and their surrounding vents. Time-chemistry reconstructions for Pirongia reveal cyclical contamination of arc magmas by deeper set intraplate sources, with each cycle ending in eruptions of lavas with transitional compositions. Further from the trench at Karioi, the magma system is characterised by on-off alternations of arc and intraplate basalt that eventually transition to arc-dominant magmatism. A two-component model is proposed to explain all geochemical variation in the field through mixing between arc and intraplate sources. Spatio-chemical data along a 65 km transect of the field indicates that as distance from the trench increases, the arc signature wanes and intraplate becomes increasingly prevalent in terms of erupted composition and volume. We conclude that trough-normal slab tear has facilitated the vertical and lateral ascension of asthenosphere into the mantle wedge, causing decompression melting to form intraplate basalts, and triggering secondary melting of the wedge to generate arc basalt. The Alexandra Volcanic Group is one of only several fields on Earth where arc and intraplate basalt are documented from the same vent systems.
abstract_unstemmed	Coeval arc and intraplate basaltic magmas are intimately linked to back-arc volcanism in the Alexandra Volcanic Group of North Island, New Zealand. We present a comprehensive suite of new elemental and SrNd isotope geochemical data in the context of detailed new stratigraphy to resolve the fine-scale systematics of arc-intraplate magmatism at large basaltic stratovolcanoes (Pirongia and Karioi) and their surrounding vents. Time-chemistry reconstructions for Pirongia reveal cyclical contamination of arc magmas by deeper set intraplate sources, with each cycle ending in eruptions of lavas with transitional compositions. Further from the trench at Karioi, the magma system is characterised by on-off alternations of arc and intraplate basalt that eventually transition to arc-dominant magmatism. A two-component model is proposed to explain all geochemical variation in the field through mixing between arc and intraplate sources. Spatio-chemical data along a 65 km transect of the field indicates that as distance from the trench increases, the arc signature wanes and intraplate becomes increasingly prevalent in terms of erupted composition and volume. We conclude that trough-normal slab tear has facilitated the vertical and lateral ascension of asthenosphere into the mantle wedge, causing decompression melting to form intraplate basalts, and triggering secondary melting of the wedge to generate arc basalt. The Alexandra Volcanic Group is one of only several fields on Earth where arc and intraplate basalt are documented from the same vent systems.
collection_details	GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393
title_short	Slab tear as a cause of coeval arc-intraplate volcanism in the Alexandra Volcanic Group, New Zealand
remote_bool	true
author2	Brenna, M. Briggs, R.M. Pittari, A.
author2Str	Brenna, M. Briggs, R.M. Pittari, A.
ppnlink	303393181
mediatype_str_mv	c
isOA_txt	false
hochschulschrift_bool	false
doi_str	10.1016/j.lithos.2021.106564
up_date	2024-07-06T23:51:02.169Z
_version_	1803875634034769920
fullrecord_marcxml	<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">ELV007171080</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230524151005.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">230506s2021 xx \|\|\|\|\|o 00\| \|\|eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1016/j.lithos.2021.106564</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)ELV007171080</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(ELSEVIER)S0024-4937(21)00607-1</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rda</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">550</subfield><subfield code="q">DE-600</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">38.25</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">38.30</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">38.32</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">McLeod, O.E.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Slab tear as a cause of coeval arc-intraplate volcanism in the Alexandra Volcanic Group, New Zealand</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2021</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Coeval arc and intraplate basaltic magmas are intimately linked to back-arc volcanism in the Alexandra Volcanic Group of North Island, New Zealand. We present a comprehensive suite of new elemental and SrNd isotope geochemical data in the context of detailed new stratigraphy to resolve the fine-scale systematics of arc-intraplate magmatism at large basaltic stratovolcanoes (Pirongia and Karioi) and their surrounding vents. Time-chemistry reconstructions for Pirongia reveal cyclical contamination of arc magmas by deeper set intraplate sources, with each cycle ending in eruptions of lavas with transitional compositions. Further from the trench at Karioi, the magma system is characterised by on-off alternations of arc and intraplate basalt that eventually transition to arc-dominant magmatism. A two-component model is proposed to explain all geochemical variation in the field through mixing between arc and intraplate sources. Spatio-chemical data along a 65 km transect of the field indicates that as distance from the trench increases, the arc signature wanes and intraplate becomes increasingly prevalent in terms of erupted composition and volume. We conclude that trough-normal slab tear has facilitated the vertical and lateral ascension of asthenosphere into the mantle wedge, causing decompression melting to form intraplate basalts, and triggering secondary melting of the wedge to generate arc basalt. The Alexandra Volcanic Group is one of only several fields on Earth where arc and intraplate basalt are documented from the same vent systems.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Basaltic volcanism</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Intraplate volcanism</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Arc volcanism</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Slab tear</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">New Zealand</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Brenna, M.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Briggs, R.M.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Pittari, A.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Lithos</subfield><subfield code="d">Amsterdam [u.a.] : Elsevier Science, 1968</subfield><subfield code="g">408</subfield><subfield code="h">Online-Ressource</subfield><subfield code="w">(DE-627)303393181</subfield><subfield code="w">(DE-600)1494884-9</subfield><subfield code="w">(DE-576)081952880</subfield><subfield code="x">1872-6143</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:408</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ELV</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OPC-GGO</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_20</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_22</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_23</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_24</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_31</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_32</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_40</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_60</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_62</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_63</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_65</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_69</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_70</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_73</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_74</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_90</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_95</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_100</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_105</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_110</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_150</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_151</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_224</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_370</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_602</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_702</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2003</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2004</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2005</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2011</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2014</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2015</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2020</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2021</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2025</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2027</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2034</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2038</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2044</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2048</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2049</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2050</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2056</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2059</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2061</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2064</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2065</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2068</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2111</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2112</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2113</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2118</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2122</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2129</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2143</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2147</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2148</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2152</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2153</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2190</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2336</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2507</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2522</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4035</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4037</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4112</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4125</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4126</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4242</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4251</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4305</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4313</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4323</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4324</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4325</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4326</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4333</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4334</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4335</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4338</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_4393</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">38.25</subfield><subfield code="j">Petrologie: Allgemeines</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">38.30</subfield><subfield code="j">Mineralogie</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">38.32</subfield><subfield code="j">Geochemie</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">408</subfield></datafield></record></collection>
score	7.40063

Nicht das Richtige dabei?

Schreiben Sie uns!

Slab tear as a cause of coeval arc-intraplate volcanism in the Alexandra Volcanic Group, New Zealand

Nicht das Richtige dabei?

Zugang & Verfügbarkeit

Vorhandene Bände

Nicht das Richtige dabei?