Late Neoarchean or late Paleoproterozoic high-pressure granulite facies metamorphism from the East Hebei terrane, North China Craton?

It is debated whether there are Neoarchean high-pressure (HP) granulites in the East Hebei terrane, North China Craton. Three mafic granulite samples from the Saheqiao belt are investigated here for their petrography, P–T evolution and zircon dating. All the samples contain the typical HP granulite...
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Gespeichert in:

Autor*in:	Lu, Haosen [verfasserIn] Wei, Chunjing [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2019

Schlagwörter:	Phase equilibria modelling Zircon U–Pb dating High-pressure granulite Paleoproterozoic overprinting East Hebei North China Craton

Übergeordnetes Werk:	Enthalten in: Journal of Asian earth sciences - Amsterdam [u.a.] : Elsevier Science, 1997, 190
Übergeordnetes Werk:	volume:190

DOI / URN:	10.1016/j.jseaes.2019.104195

Katalog-ID:	ELV003630994

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245	1	0	\|a Late Neoarchean or late Paleoproterozoic high-pressure granulite facies metamorphism from the East Hebei terrane, North China Craton?
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520			\|a It is debated whether there are Neoarchean high-pressure (HP) granulites in the East Hebei terrane, North China Craton. Three mafic granulite samples from the Saheqiao belt are investigated here for their petrography, P–T evolution and zircon dating. All the samples contain the typical HP granulite assemblages involving garnet, clinopyroxene, plagioclase and amphibole. These assemblages commonly overprint on an early-phase assemblage dominated by coarse-grained clinopyroxene. These HP granulites share clockwise P–T paths with the peak conditions constrained to be ~900 °C/12.5 kbar and ~880 °C/12.8 kbar for two samples, using the isopleths of the maximum Ti content from amphibole and the minimum anorthite from plagioclase in P–T psueudosections. The post-peak P–T paths are inferred to be dominant of decompression with cooling based on the core-rim zoning with increasing anorthite in plagioclase, plagioclase coronas around garnet and decreasing Ti from core to rim in amphibole. Zircon dating yields one metamorphic age of 2.48 Ga for sample J1850 and two metamorphic ages of 2.47 and 1.81 Ga for sample YC223 . The older zircons show enriched HREE patterns, indicating no garnet involved, whereas the younger zircons have flat HREE patterns, reflecting the presence of garnet. Moreover, the older ages are consistent with the late Neoarchean granulites that have anticlockwise P–T paths and the younger ages correspond to the HP granulites from both metabasic dykes and supracrustal rocks constrained already. Thus, the studied HP granulites are considered to be formed in the late Paleoproterozoic related to a crust-thickening orogenic event.
650		4	\|a Phase equilibria modelling
650		4	\|a Zircon U–Pb dating
650		4	\|a High-pressure granulite
650		4	\|a Paleoproterozoic overprinting
650		4	\|a East Hebei
650		4	\|a North China Craton
700	1		\|a Wei, Chunjing \|e verfasserin \|4 aut
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author_variant	h l hl c w cw
matchkey_str	article:18785786:2019----::aeeacenraeaepoeoocihrsuernltfcemtmrhsfotea
hierarchy_sort_str	2019
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publishDate	2019
allfields	10.1016/j.jseaes.2019.104195 doi (DE-627)ELV003630994 (ELSEVIER)S1367-9120(19)30547-4 DE-627 ger DE-627 rda eng 550 DE-600 38.00 bkl Lu, Haosen verfasserin aut Late Neoarchean or late Paleoproterozoic high-pressure granulite facies metamorphism from the East Hebei terrane, North China Craton? 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier It is debated whether there are Neoarchean high-pressure (HP) granulites in the East Hebei terrane, North China Craton. Three mafic granulite samples from the Saheqiao belt are investigated here for their petrography, P–T evolution and zircon dating. All the samples contain the typical HP granulite assemblages involving garnet, clinopyroxene, plagioclase and amphibole. These assemblages commonly overprint on an early-phase assemblage dominated by coarse-grained clinopyroxene. These HP granulites share clockwise P–T paths with the peak conditions constrained to be ~900 °C/12.5 kbar and ~880 °C/12.8 kbar for two samples, using the isopleths of the maximum Ti content from amphibole and the minimum anorthite from plagioclase in P–T psueudosections. The post-peak P–T paths are inferred to be dominant of decompression with cooling based on the core-rim zoning with increasing anorthite in plagioclase, plagioclase coronas around garnet and decreasing Ti from core to rim in amphibole. Zircon dating yields one metamorphic age of 2.48 Ga for sample J1850 and two metamorphic ages of 2.47 and 1.81 Ga for sample YC223 . The older zircons show enriched HREE patterns, indicating no garnet involved, whereas the younger zircons have flat HREE patterns, reflecting the presence of garnet. Moreover, the older ages are consistent with the late Neoarchean granulites that have anticlockwise P–T paths and the younger ages correspond to the HP granulites from both metabasic dykes and supracrustal rocks constrained already. Thus, the studied HP granulites are considered to be formed in the late Paleoproterozoic related to a crust-thickening orogenic event. Phase equilibria modelling Zircon U–Pb dating High-pressure granulite Paleoproterozoic overprinting East Hebei North China Craton Wei, Chunjing verfasserin aut Enthalten in Journal of Asian earth sciences Amsterdam [u.a.] : Elsevier Science, 1997 190 Online-Ressource (DE-627)303391960 (DE-600)1494743-2 (DE-576)106846035 1878-5786 nnns volume:190 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 38.00 Geowissenschaften: Allgemeines AR 190
spelling	10.1016/j.jseaes.2019.104195 doi (DE-627)ELV003630994 (ELSEVIER)S1367-9120(19)30547-4 DE-627 ger DE-627 rda eng 550 DE-600 38.00 bkl Lu, Haosen verfasserin aut Late Neoarchean or late Paleoproterozoic high-pressure granulite facies metamorphism from the East Hebei terrane, North China Craton? 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier It is debated whether there are Neoarchean high-pressure (HP) granulites in the East Hebei terrane, North China Craton. Three mafic granulite samples from the Saheqiao belt are investigated here for their petrography, P–T evolution and zircon dating. All the samples contain the typical HP granulite assemblages involving garnet, clinopyroxene, plagioclase and amphibole. These assemblages commonly overprint on an early-phase assemblage dominated by coarse-grained clinopyroxene. These HP granulites share clockwise P–T paths with the peak conditions constrained to be ~900 °C/12.5 kbar and ~880 °C/12.8 kbar for two samples, using the isopleths of the maximum Ti content from amphibole and the minimum anorthite from plagioclase in P–T psueudosections. The post-peak P–T paths are inferred to be dominant of decompression with cooling based on the core-rim zoning with increasing anorthite in plagioclase, plagioclase coronas around garnet and decreasing Ti from core to rim in amphibole. Zircon dating yields one metamorphic age of 2.48 Ga for sample J1850 and two metamorphic ages of 2.47 and 1.81 Ga for sample YC223 . The older zircons show enriched HREE patterns, indicating no garnet involved, whereas the younger zircons have flat HREE patterns, reflecting the presence of garnet. Moreover, the older ages are consistent with the late Neoarchean granulites that have anticlockwise P–T paths and the younger ages correspond to the HP granulites from both metabasic dykes and supracrustal rocks constrained already. Thus, the studied HP granulites are considered to be formed in the late Paleoproterozoic related to a crust-thickening orogenic event. Phase equilibria modelling Zircon U–Pb dating High-pressure granulite Paleoproterozoic overprinting East Hebei North China Craton Wei, Chunjing verfasserin aut Enthalten in Journal of Asian earth sciences Amsterdam [u.a.] : Elsevier Science, 1997 190 Online-Ressource (DE-627)303391960 (DE-600)1494743-2 (DE-576)106846035 1878-5786 nnns volume:190 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 38.00 Geowissenschaften: Allgemeines AR 190
allfields_unstemmed	10.1016/j.jseaes.2019.104195 doi (DE-627)ELV003630994 (ELSEVIER)S1367-9120(19)30547-4 DE-627 ger DE-627 rda eng 550 DE-600 38.00 bkl Lu, Haosen verfasserin aut Late Neoarchean or late Paleoproterozoic high-pressure granulite facies metamorphism from the East Hebei terrane, North China Craton? 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier It is debated whether there are Neoarchean high-pressure (HP) granulites in the East Hebei terrane, North China Craton. Three mafic granulite samples from the Saheqiao belt are investigated here for their petrography, P–T evolution and zircon dating. All the samples contain the typical HP granulite assemblages involving garnet, clinopyroxene, plagioclase and amphibole. These assemblages commonly overprint on an early-phase assemblage dominated by coarse-grained clinopyroxene. These HP granulites share clockwise P–T paths with the peak conditions constrained to be ~900 °C/12.5 kbar and ~880 °C/12.8 kbar for two samples, using the isopleths of the maximum Ti content from amphibole and the minimum anorthite from plagioclase in P–T psueudosections. The post-peak P–T paths are inferred to be dominant of decompression with cooling based on the core-rim zoning with increasing anorthite in plagioclase, plagioclase coronas around garnet and decreasing Ti from core to rim in amphibole. Zircon dating yields one metamorphic age of 2.48 Ga for sample J1850 and two metamorphic ages of 2.47 and 1.81 Ga for sample YC223 . The older zircons show enriched HREE patterns, indicating no garnet involved, whereas the younger zircons have flat HREE patterns, reflecting the presence of garnet. Moreover, the older ages are consistent with the late Neoarchean granulites that have anticlockwise P–T paths and the younger ages correspond to the HP granulites from both metabasic dykes and supracrustal rocks constrained already. Thus, the studied HP granulites are considered to be formed in the late Paleoproterozoic related to a crust-thickening orogenic event. Phase equilibria modelling Zircon U–Pb dating High-pressure granulite Paleoproterozoic overprinting East Hebei North China Craton Wei, Chunjing verfasserin aut Enthalten in Journal of Asian earth sciences Amsterdam [u.a.] : Elsevier Science, 1997 190 Online-Ressource (DE-627)303391960 (DE-600)1494743-2 (DE-576)106846035 1878-5786 nnns volume:190 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 38.00 Geowissenschaften: Allgemeines AR 190
allfieldsGer	10.1016/j.jseaes.2019.104195 doi (DE-627)ELV003630994 (ELSEVIER)S1367-9120(19)30547-4 DE-627 ger DE-627 rda eng 550 DE-600 38.00 bkl Lu, Haosen verfasserin aut Late Neoarchean or late Paleoproterozoic high-pressure granulite facies metamorphism from the East Hebei terrane, North China Craton? 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier It is debated whether there are Neoarchean high-pressure (HP) granulites in the East Hebei terrane, North China Craton. Three mafic granulite samples from the Saheqiao belt are investigated here for their petrography, P–T evolution and zircon dating. All the samples contain the typical HP granulite assemblages involving garnet, clinopyroxene, plagioclase and amphibole. These assemblages commonly overprint on an early-phase assemblage dominated by coarse-grained clinopyroxene. These HP granulites share clockwise P–T paths with the peak conditions constrained to be ~900 °C/12.5 kbar and ~880 °C/12.8 kbar for two samples, using the isopleths of the maximum Ti content from amphibole and the minimum anorthite from plagioclase in P–T psueudosections. The post-peak P–T paths are inferred to be dominant of decompression with cooling based on the core-rim zoning with increasing anorthite in plagioclase, plagioclase coronas around garnet and decreasing Ti from core to rim in amphibole. Zircon dating yields one metamorphic age of 2.48 Ga for sample J1850 and two metamorphic ages of 2.47 and 1.81 Ga for sample YC223 . The older zircons show enriched HREE patterns, indicating no garnet involved, whereas the younger zircons have flat HREE patterns, reflecting the presence of garnet. Moreover, the older ages are consistent with the late Neoarchean granulites that have anticlockwise P–T paths and the younger ages correspond to the HP granulites from both metabasic dykes and supracrustal rocks constrained already. Thus, the studied HP granulites are considered to be formed in the late Paleoproterozoic related to a crust-thickening orogenic event. Phase equilibria modelling Zircon U–Pb dating High-pressure granulite Paleoproterozoic overprinting East Hebei North China Craton Wei, Chunjing verfasserin aut Enthalten in Journal of Asian earth sciences Amsterdam [u.a.] : Elsevier Science, 1997 190 Online-Ressource (DE-627)303391960 (DE-600)1494743-2 (DE-576)106846035 1878-5786 nnns volume:190 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 38.00 Geowissenschaften: Allgemeines AR 190
allfieldsSound	10.1016/j.jseaes.2019.104195 doi (DE-627)ELV003630994 (ELSEVIER)S1367-9120(19)30547-4 DE-627 ger DE-627 rda eng 550 DE-600 38.00 bkl Lu, Haosen verfasserin aut Late Neoarchean or late Paleoproterozoic high-pressure granulite facies metamorphism from the East Hebei terrane, North China Craton? 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier It is debated whether there are Neoarchean high-pressure (HP) granulites in the East Hebei terrane, North China Craton. Three mafic granulite samples from the Saheqiao belt are investigated here for their petrography, P–T evolution and zircon dating. All the samples contain the typical HP granulite assemblages involving garnet, clinopyroxene, plagioclase and amphibole. These assemblages commonly overprint on an early-phase assemblage dominated by coarse-grained clinopyroxene. These HP granulites share clockwise P–T paths with the peak conditions constrained to be ~900 °C/12.5 kbar and ~880 °C/12.8 kbar for two samples, using the isopleths of the maximum Ti content from amphibole and the minimum anorthite from plagioclase in P–T psueudosections. The post-peak P–T paths are inferred to be dominant of decompression with cooling based on the core-rim zoning with increasing anorthite in plagioclase, plagioclase coronas around garnet and decreasing Ti from core to rim in amphibole. Zircon dating yields one metamorphic age of 2.48 Ga for sample J1850 and two metamorphic ages of 2.47 and 1.81 Ga for sample YC223 . The older zircons show enriched HREE patterns, indicating no garnet involved, whereas the younger zircons have flat HREE patterns, reflecting the presence of garnet. Moreover, the older ages are consistent with the late Neoarchean granulites that have anticlockwise P–T paths and the younger ages correspond to the HP granulites from both metabasic dykes and supracrustal rocks constrained already. Thus, the studied HP granulites are considered to be formed in the late Paleoproterozoic related to a crust-thickening orogenic event. Phase equilibria modelling Zircon U–Pb dating High-pressure granulite Paleoproterozoic overprinting East Hebei North China Craton Wei, Chunjing verfasserin aut Enthalten in Journal of Asian earth sciences Amsterdam [u.a.] : Elsevier Science, 1997 190 Online-Ressource (DE-627)303391960 (DE-600)1494743-2 (DE-576)106846035 1878-5786 nnns volume:190 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 38.00 Geowissenschaften: Allgemeines AR 190
language	English
source	Enthalten in Journal of Asian earth sciences 190 volume:190
sourceStr	Enthalten in Journal of Asian earth sciences 190 volume:190
format_phy_str_mv	Article
bklname	Geowissenschaften: Allgemeines
institution	findex.gbv.de
topic_facet	Phase equilibria modelling Zircon U–Pb dating High-pressure granulite Paleoproterozoic overprinting East Hebei North China Craton
dewey-raw	550
isfreeaccess_bool	false
container_title	Journal of Asian earth sciences
authorswithroles_txt_mv	Lu, Haosen @@aut@@ Wei, Chunjing @@aut@@
publishDateDaySort_date	2019-01-01T00:00:00Z
hierarchy_top_id	303391960
dewey-sort	3550
id	ELV003630994
language_de	englisch
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author	Lu, Haosen
spellingShingle	Lu, Haosen ddc 550 bkl 38.00 misc Phase equilibria modelling misc Zircon U–Pb dating misc High-pressure granulite misc Paleoproterozoic overprinting misc East Hebei misc North China Craton Late Neoarchean or late Paleoproterozoic high-pressure granulite facies metamorphism from the East Hebei terrane, North China Craton?
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topic_title	550 DE-600 38.00 bkl Late Neoarchean or late Paleoproterozoic high-pressure granulite facies metamorphism from the East Hebei terrane, North China Craton? Phase equilibria modelling Zircon U–Pb dating High-pressure granulite Paleoproterozoic overprinting East Hebei North China Craton
topic	ddc 550 bkl 38.00 misc Phase equilibria modelling misc Zircon U–Pb dating misc High-pressure granulite misc Paleoproterozoic overprinting misc East Hebei misc North China Craton
topic_unstemmed	ddc 550 bkl 38.00 misc Phase equilibria modelling misc Zircon U–Pb dating misc High-pressure granulite misc Paleoproterozoic overprinting misc East Hebei misc North China Craton
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title	Late Neoarchean or late Paleoproterozoic high-pressure granulite facies metamorphism from the East Hebei terrane, North China Craton?
ctrlnum	(DE-627)ELV003630994 (ELSEVIER)S1367-9120(19)30547-4
title_full	Late Neoarchean or late Paleoproterozoic high-pressure granulite facies metamorphism from the East Hebei terrane, North China Craton?
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title_sort	late neoarchean or late paleoproterozoic high-pressure granulite facies metamorphism from the east hebei terrane, north china craton?
title_auth	Late Neoarchean or late Paleoproterozoic high-pressure granulite facies metamorphism from the East Hebei terrane, North China Craton?
abstract	It is debated whether there are Neoarchean high-pressure (HP) granulites in the East Hebei terrane, North China Craton. Three mafic granulite samples from the Saheqiao belt are investigated here for their petrography, P–T evolution and zircon dating. All the samples contain the typical HP granulite assemblages involving garnet, clinopyroxene, plagioclase and amphibole. These assemblages commonly overprint on an early-phase assemblage dominated by coarse-grained clinopyroxene. These HP granulites share clockwise P–T paths with the peak conditions constrained to be ~900 °C/12.5 kbar and ~880 °C/12.8 kbar for two samples, using the isopleths of the maximum Ti content from amphibole and the minimum anorthite from plagioclase in P–T psueudosections. The post-peak P–T paths are inferred to be dominant of decompression with cooling based on the core-rim zoning with increasing anorthite in plagioclase, plagioclase coronas around garnet and decreasing Ti from core to rim in amphibole. Zircon dating yields one metamorphic age of 2.48 Ga for sample J1850 and two metamorphic ages of 2.47 and 1.81 Ga for sample YC223 . The older zircons show enriched HREE patterns, indicating no garnet involved, whereas the younger zircons have flat HREE patterns, reflecting the presence of garnet. Moreover, the older ages are consistent with the late Neoarchean granulites that have anticlockwise P–T paths and the younger ages correspond to the HP granulites from both metabasic dykes and supracrustal rocks constrained already. Thus, the studied HP granulites are considered to be formed in the late Paleoproterozoic related to a crust-thickening orogenic event.
abstractGer	It is debated whether there are Neoarchean high-pressure (HP) granulites in the East Hebei terrane, North China Craton. Three mafic granulite samples from the Saheqiao belt are investigated here for their petrography, P–T evolution and zircon dating. All the samples contain the typical HP granulite assemblages involving garnet, clinopyroxene, plagioclase and amphibole. These assemblages commonly overprint on an early-phase assemblage dominated by coarse-grained clinopyroxene. These HP granulites share clockwise P–T paths with the peak conditions constrained to be ~900 °C/12.5 kbar and ~880 °C/12.8 kbar for two samples, using the isopleths of the maximum Ti content from amphibole and the minimum anorthite from plagioclase in P–T psueudosections. The post-peak P–T paths are inferred to be dominant of decompression with cooling based on the core-rim zoning with increasing anorthite in plagioclase, plagioclase coronas around garnet and decreasing Ti from core to rim in amphibole. Zircon dating yields one metamorphic age of 2.48 Ga for sample J1850 and two metamorphic ages of 2.47 and 1.81 Ga for sample YC223 . The older zircons show enriched HREE patterns, indicating no garnet involved, whereas the younger zircons have flat HREE patterns, reflecting the presence of garnet. Moreover, the older ages are consistent with the late Neoarchean granulites that have anticlockwise P–T paths and the younger ages correspond to the HP granulites from both metabasic dykes and supracrustal rocks constrained already. Thus, the studied HP granulites are considered to be formed in the late Paleoproterozoic related to a crust-thickening orogenic event.
abstract_unstemmed	It is debated whether there are Neoarchean high-pressure (HP) granulites in the East Hebei terrane, North China Craton. Three mafic granulite samples from the Saheqiao belt are investigated here for their petrography, P–T evolution and zircon dating. All the samples contain the typical HP granulite assemblages involving garnet, clinopyroxene, plagioclase and amphibole. These assemblages commonly overprint on an early-phase assemblage dominated by coarse-grained clinopyroxene. These HP granulites share clockwise P–T paths with the peak conditions constrained to be ~900 °C/12.5 kbar and ~880 °C/12.8 kbar for two samples, using the isopleths of the maximum Ti content from amphibole and the minimum anorthite from plagioclase in P–T psueudosections. The post-peak P–T paths are inferred to be dominant of decompression with cooling based on the core-rim zoning with increasing anorthite in plagioclase, plagioclase coronas around garnet and decreasing Ti from core to rim in amphibole. Zircon dating yields one metamorphic age of 2.48 Ga for sample J1850 and two metamorphic ages of 2.47 and 1.81 Ga for sample YC223 . The older zircons show enriched HREE patterns, indicating no garnet involved, whereas the younger zircons have flat HREE patterns, reflecting the presence of garnet. Moreover, the older ages are consistent with the late Neoarchean granulites that have anticlockwise P–T paths and the younger ages correspond to the HP granulites from both metabasic dykes and supracrustal rocks constrained already. Thus, the studied HP granulites are considered to be formed in the late Paleoproterozoic related to a crust-thickening orogenic event.
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title_short	Late Neoarchean or late Paleoproterozoic high-pressure granulite facies metamorphism from the East Hebei terrane, North China Craton?
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up_date	2024-07-06T20:16:27.630Z
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Late Neoarchean or late Paleoproterozoic high-pressure granulite facies metamorphism from the East Hebei terrane, North China Craton?

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