Baossi–Warack monogenetic volcanoes, Adamawa Plateau, Cameroon: petrography, mineralogy and geochemistry

Abstract Three monogenetic cones in the Baossi–Warack area, Ngaoundéré, Adamawa Plateau forming part of the Cameroon Volcanic Line (CVL) are documented in this study. Basaltic lavas (< 1 $ km^{3} $) scattered around these vents and restricted volcaniclastic deposits were emplaced by Hawaiian and...
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Autor*in:	Tiabou, Anicet Feudjio [verfasserIn] Temdjim, Robert Wandji, Pierre Bardintzeff, Jacques-Marie Che, Vivian Bih Bate Tibang, Edith Ekatah Ngwa, Caroline Neh Mebara, François Xavier Onana

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2018

Schlagwörter:	Cameroon volcanic line Adamawa Plateau Volcanic field Monogenetic volcano Magma mixing Petrogenesis

Anmerkung:	© Science Press, Institute of Geochemistry, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Übergeordnetes Werk:	Enthalten in: Chinese journal of geochemistry - Beijing : Science Press, 1982, 38(2018), 1 vom: 23. Apr., Seite 40-67
Übergeordnetes Werk:	volume:38 ; year:2018 ; number:1 ; day:23 ; month:04 ; pages:40-67

Links:	Volltext

DOI / URN:	10.1007/s11631-018-0272-9

Katalog-ID:	SPR021280150

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allfields	10.1007/s11631-018-0272-9 doi (DE-627)SPR021280150 (SPR)s11631-018-0272-9-e DE-627 ger DE-627 rakwb eng Tiabou, Anicet Feudjio verfasserin aut Baossi–Warack monogenetic volcanoes, Adamawa Plateau, Cameroon: petrography, mineralogy and geochemistry 2018 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Science Press, Institute of Geochemistry, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2018 Abstract Three monogenetic cones in the Baossi–Warack area, Ngaoundéré, Adamawa Plateau forming part of the Cameroon Volcanic Line (CVL) are documented in this study. Basaltic lavas (< 1 $ km^{3} $) scattered around these vents and restricted volcaniclastic deposits were emplaced by Hawaiian and mild strombolian style eruptions. The lavas are porphyritic, mainly composed of olivine (chrysolite) and clinopyroxene (diopside and augite) phenocrysts and plagioclase (andesine) microphenocrysts. Accessory minerals include titano-magnetite and titano-hematite, nepheline, apatite and amphibole xenocrysts. Sanidine occurs in some samples and sodi-potassic albite in others. Some olivines and clinopyroxenes exhibit resorbed margins and thin reaction rims while plagioclase displays oscillatory zoning, and sieved textures as a result of magma mixing. Whole-rock geochemistry data indicates that the lavas are silica-undersaturated, composed of basanites and basalts, showing little compositional variations ($ SiO_{2} $: 39.20 wt.%–48.01 wt.%, MgO: 5.29 wt.%–9.70 wt.%). Trace elements patterns of these lavas suggest they are enriched in LILE including Pb, probably due to crustal contamination. REE patterns suggest cogenetic magmas below Baossi 1 and Baossi 2 volcanoes, and distinct sources below Warack volcano and nearby lavas. The lavas studied show affinity to high-µ (HIMU), enriched type I (EM1) and Oceanic Island Basalt (OIB)-like mantle signatures and thus indicate a heterogeneous mantle source underneath the vents as noted at other monogenetic and polygenetic volcanoes along the CVL. Primary melts derived from low degrees of partial melting (0.5%–2%) and encountered low rates of fractionation, and crustal contamination coupled with magma mixing. These melts evolved independently through structural weaknesses in the basement. Cameroon volcanic line (dpeaa)DE-He213 Adamawa Plateau (dpeaa)DE-He213 Volcanic field (dpeaa)DE-He213 Monogenetic volcano (dpeaa)DE-He213 Magma mixing (dpeaa)DE-He213 Petrogenesis (dpeaa)DE-He213 Temdjim, Robert aut Wandji, Pierre aut Bardintzeff, Jacques-Marie aut Che, Vivian Bih aut Bate Tibang, Edith Ekatah aut Ngwa, Caroline Neh aut Mebara, François Xavier Onana aut Enthalten in Chinese journal of geochemistry Beijing : Science Press, 1982 38(2018), 1 vom: 23. Apr., Seite 40-67 (DE-627)341897779 (DE-600)2069518-4 1993-0364 nnns volume:38 year:2018 number:1 day:23 month:04 pages:40-67 https://dx.doi.org/10.1007/s11631-018-0272-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_110 GBV_ILN_152 GBV_ILN_161 GBV_ILN_187 GBV_ILN_293 GBV_ILN_370 GBV_ILN_374 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2068 GBV_ILN_2106 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2700 AR 38 2018 1 23 04 40-67
spelling	10.1007/s11631-018-0272-9 doi (DE-627)SPR021280150 (SPR)s11631-018-0272-9-e DE-627 ger DE-627 rakwb eng Tiabou, Anicet Feudjio verfasserin aut Baossi–Warack monogenetic volcanoes, Adamawa Plateau, Cameroon: petrography, mineralogy and geochemistry 2018 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Science Press, Institute of Geochemistry, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2018 Abstract Three monogenetic cones in the Baossi–Warack area, Ngaoundéré, Adamawa Plateau forming part of the Cameroon Volcanic Line (CVL) are documented in this study. Basaltic lavas (< 1 $ km^{3} $) scattered around these vents and restricted volcaniclastic deposits were emplaced by Hawaiian and mild strombolian style eruptions. The lavas are porphyritic, mainly composed of olivine (chrysolite) and clinopyroxene (diopside and augite) phenocrysts and plagioclase (andesine) microphenocrysts. Accessory minerals include titano-magnetite and titano-hematite, nepheline, apatite and amphibole xenocrysts. Sanidine occurs in some samples and sodi-potassic albite in others. Some olivines and clinopyroxenes exhibit resorbed margins and thin reaction rims while plagioclase displays oscillatory zoning, and sieved textures as a result of magma mixing. Whole-rock geochemistry data indicates that the lavas are silica-undersaturated, composed of basanites and basalts, showing little compositional variations ($ SiO_{2} $: 39.20 wt.%–48.01 wt.%, MgO: 5.29 wt.%–9.70 wt.%). Trace elements patterns of these lavas suggest they are enriched in LILE including Pb, probably due to crustal contamination. REE patterns suggest cogenetic magmas below Baossi 1 and Baossi 2 volcanoes, and distinct sources below Warack volcano and nearby lavas. The lavas studied show affinity to high-µ (HIMU), enriched type I (EM1) and Oceanic Island Basalt (OIB)-like mantle signatures and thus indicate a heterogeneous mantle source underneath the vents as noted at other monogenetic and polygenetic volcanoes along the CVL. Primary melts derived from low degrees of partial melting (0.5%–2%) and encountered low rates of fractionation, and crustal contamination coupled with magma mixing. These melts evolved independently through structural weaknesses in the basement. Cameroon volcanic line (dpeaa)DE-He213 Adamawa Plateau (dpeaa)DE-He213 Volcanic field (dpeaa)DE-He213 Monogenetic volcano (dpeaa)DE-He213 Magma mixing (dpeaa)DE-He213 Petrogenesis (dpeaa)DE-He213 Temdjim, Robert aut Wandji, Pierre aut Bardintzeff, Jacques-Marie aut Che, Vivian Bih aut Bate Tibang, Edith Ekatah aut Ngwa, Caroline Neh aut Mebara, François Xavier Onana aut Enthalten in Chinese journal of geochemistry Beijing : Science Press, 1982 38(2018), 1 vom: 23. Apr., Seite 40-67 (DE-627)341897779 (DE-600)2069518-4 1993-0364 nnns volume:38 year:2018 number:1 day:23 month:04 pages:40-67 https://dx.doi.org/10.1007/s11631-018-0272-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_110 GBV_ILN_152 GBV_ILN_161 GBV_ILN_187 GBV_ILN_293 GBV_ILN_370 GBV_ILN_374 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2068 GBV_ILN_2106 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2700 AR 38 2018 1 23 04 40-67
allfields_unstemmed	10.1007/s11631-018-0272-9 doi (DE-627)SPR021280150 (SPR)s11631-018-0272-9-e DE-627 ger DE-627 rakwb eng Tiabou, Anicet Feudjio verfasserin aut Baossi–Warack monogenetic volcanoes, Adamawa Plateau, Cameroon: petrography, mineralogy and geochemistry 2018 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Science Press, Institute of Geochemistry, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2018 Abstract Three monogenetic cones in the Baossi–Warack area, Ngaoundéré, Adamawa Plateau forming part of the Cameroon Volcanic Line (CVL) are documented in this study. Basaltic lavas (< 1 $ km^{3} $) scattered around these vents and restricted volcaniclastic deposits were emplaced by Hawaiian and mild strombolian style eruptions. The lavas are porphyritic, mainly composed of olivine (chrysolite) and clinopyroxene (diopside and augite) phenocrysts and plagioclase (andesine) microphenocrysts. Accessory minerals include titano-magnetite and titano-hematite, nepheline, apatite and amphibole xenocrysts. Sanidine occurs in some samples and sodi-potassic albite in others. Some olivines and clinopyroxenes exhibit resorbed margins and thin reaction rims while plagioclase displays oscillatory zoning, and sieved textures as a result of magma mixing. Whole-rock geochemistry data indicates that the lavas are silica-undersaturated, composed of basanites and basalts, showing little compositional variations ($ SiO_{2} $: 39.20 wt.%–48.01 wt.%, MgO: 5.29 wt.%–9.70 wt.%). Trace elements patterns of these lavas suggest they are enriched in LILE including Pb, probably due to crustal contamination. REE patterns suggest cogenetic magmas below Baossi 1 and Baossi 2 volcanoes, and distinct sources below Warack volcano and nearby lavas. The lavas studied show affinity to high-µ (HIMU), enriched type I (EM1) and Oceanic Island Basalt (OIB)-like mantle signatures and thus indicate a heterogeneous mantle source underneath the vents as noted at other monogenetic and polygenetic volcanoes along the CVL. Primary melts derived from low degrees of partial melting (0.5%–2%) and encountered low rates of fractionation, and crustal contamination coupled with magma mixing. These melts evolved independently through structural weaknesses in the basement. Cameroon volcanic line (dpeaa)DE-He213 Adamawa Plateau (dpeaa)DE-He213 Volcanic field (dpeaa)DE-He213 Monogenetic volcano (dpeaa)DE-He213 Magma mixing (dpeaa)DE-He213 Petrogenesis (dpeaa)DE-He213 Temdjim, Robert aut Wandji, Pierre aut Bardintzeff, Jacques-Marie aut Che, Vivian Bih aut Bate Tibang, Edith Ekatah aut Ngwa, Caroline Neh aut Mebara, François Xavier Onana aut Enthalten in Chinese journal of geochemistry Beijing : Science Press, 1982 38(2018), 1 vom: 23. Apr., Seite 40-67 (DE-627)341897779 (DE-600)2069518-4 1993-0364 nnns volume:38 year:2018 number:1 day:23 month:04 pages:40-67 https://dx.doi.org/10.1007/s11631-018-0272-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_110 GBV_ILN_152 GBV_ILN_161 GBV_ILN_187 GBV_ILN_293 GBV_ILN_370 GBV_ILN_374 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2068 GBV_ILN_2106 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2700 AR 38 2018 1 23 04 40-67
allfieldsGer	10.1007/s11631-018-0272-9 doi (DE-627)SPR021280150 (SPR)s11631-018-0272-9-e DE-627 ger DE-627 rakwb eng Tiabou, Anicet Feudjio verfasserin aut Baossi–Warack monogenetic volcanoes, Adamawa Plateau, Cameroon: petrography, mineralogy and geochemistry 2018 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Science Press, Institute of Geochemistry, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2018 Abstract Three monogenetic cones in the Baossi–Warack area, Ngaoundéré, Adamawa Plateau forming part of the Cameroon Volcanic Line (CVL) are documented in this study. Basaltic lavas (< 1 $ km^{3} $) scattered around these vents and restricted volcaniclastic deposits were emplaced by Hawaiian and mild strombolian style eruptions. The lavas are porphyritic, mainly composed of olivine (chrysolite) and clinopyroxene (diopside and augite) phenocrysts and plagioclase (andesine) microphenocrysts. Accessory minerals include titano-magnetite and titano-hematite, nepheline, apatite and amphibole xenocrysts. Sanidine occurs in some samples and sodi-potassic albite in others. Some olivines and clinopyroxenes exhibit resorbed margins and thin reaction rims while plagioclase displays oscillatory zoning, and sieved textures as a result of magma mixing. Whole-rock geochemistry data indicates that the lavas are silica-undersaturated, composed of basanites and basalts, showing little compositional variations ($ SiO_{2} $: 39.20 wt.%–48.01 wt.%, MgO: 5.29 wt.%–9.70 wt.%). Trace elements patterns of these lavas suggest they are enriched in LILE including Pb, probably due to crustal contamination. REE patterns suggest cogenetic magmas below Baossi 1 and Baossi 2 volcanoes, and distinct sources below Warack volcano and nearby lavas. The lavas studied show affinity to high-µ (HIMU), enriched type I (EM1) and Oceanic Island Basalt (OIB)-like mantle signatures and thus indicate a heterogeneous mantle source underneath the vents as noted at other monogenetic and polygenetic volcanoes along the CVL. Primary melts derived from low degrees of partial melting (0.5%–2%) and encountered low rates of fractionation, and crustal contamination coupled with magma mixing. These melts evolved independently through structural weaknesses in the basement. Cameroon volcanic line (dpeaa)DE-He213 Adamawa Plateau (dpeaa)DE-He213 Volcanic field (dpeaa)DE-He213 Monogenetic volcano (dpeaa)DE-He213 Magma mixing (dpeaa)DE-He213 Petrogenesis (dpeaa)DE-He213 Temdjim, Robert aut Wandji, Pierre aut Bardintzeff, Jacques-Marie aut Che, Vivian Bih aut Bate Tibang, Edith Ekatah aut Ngwa, Caroline Neh aut Mebara, François Xavier Onana aut Enthalten in Chinese journal of geochemistry Beijing : Science Press, 1982 38(2018), 1 vom: 23. Apr., Seite 40-67 (DE-627)341897779 (DE-600)2069518-4 1993-0364 nnns volume:38 year:2018 number:1 day:23 month:04 pages:40-67 https://dx.doi.org/10.1007/s11631-018-0272-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_110 GBV_ILN_152 GBV_ILN_161 GBV_ILN_187 GBV_ILN_293 GBV_ILN_370 GBV_ILN_374 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2068 GBV_ILN_2106 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2700 AR 38 2018 1 23 04 40-67
allfieldsSound	10.1007/s11631-018-0272-9 doi (DE-627)SPR021280150 (SPR)s11631-018-0272-9-e DE-627 ger DE-627 rakwb eng Tiabou, Anicet Feudjio verfasserin aut Baossi–Warack monogenetic volcanoes, Adamawa Plateau, Cameroon: petrography, mineralogy and geochemistry 2018 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Science Press, Institute of Geochemistry, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2018 Abstract Three monogenetic cones in the Baossi–Warack area, Ngaoundéré, Adamawa Plateau forming part of the Cameroon Volcanic Line (CVL) are documented in this study. Basaltic lavas (< 1 $ km^{3} $) scattered around these vents and restricted volcaniclastic deposits were emplaced by Hawaiian and mild strombolian style eruptions. The lavas are porphyritic, mainly composed of olivine (chrysolite) and clinopyroxene (diopside and augite) phenocrysts and plagioclase (andesine) microphenocrysts. Accessory minerals include titano-magnetite and titano-hematite, nepheline, apatite and amphibole xenocrysts. Sanidine occurs in some samples and sodi-potassic albite in others. Some olivines and clinopyroxenes exhibit resorbed margins and thin reaction rims while plagioclase displays oscillatory zoning, and sieved textures as a result of magma mixing. Whole-rock geochemistry data indicates that the lavas are silica-undersaturated, composed of basanites and basalts, showing little compositional variations ($ SiO_{2} $: 39.20 wt.%–48.01 wt.%, MgO: 5.29 wt.%–9.70 wt.%). Trace elements patterns of these lavas suggest they are enriched in LILE including Pb, probably due to crustal contamination. REE patterns suggest cogenetic magmas below Baossi 1 and Baossi 2 volcanoes, and distinct sources below Warack volcano and nearby lavas. The lavas studied show affinity to high-µ (HIMU), enriched type I (EM1) and Oceanic Island Basalt (OIB)-like mantle signatures and thus indicate a heterogeneous mantle source underneath the vents as noted at other monogenetic and polygenetic volcanoes along the CVL. Primary melts derived from low degrees of partial melting (0.5%–2%) and encountered low rates of fractionation, and crustal contamination coupled with magma mixing. These melts evolved independently through structural weaknesses in the basement. Cameroon volcanic line (dpeaa)DE-He213 Adamawa Plateau (dpeaa)DE-He213 Volcanic field (dpeaa)DE-He213 Monogenetic volcano (dpeaa)DE-He213 Magma mixing (dpeaa)DE-He213 Petrogenesis (dpeaa)DE-He213 Temdjim, Robert aut Wandji, Pierre aut Bardintzeff, Jacques-Marie aut Che, Vivian Bih aut Bate Tibang, Edith Ekatah aut Ngwa, Caroline Neh aut Mebara, François Xavier Onana aut Enthalten in Chinese journal of geochemistry Beijing : Science Press, 1982 38(2018), 1 vom: 23. Apr., Seite 40-67 (DE-627)341897779 (DE-600)2069518-4 1993-0364 nnns volume:38 year:2018 number:1 day:23 month:04 pages:40-67 https://dx.doi.org/10.1007/s11631-018-0272-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_110 GBV_ILN_152 GBV_ILN_161 GBV_ILN_187 GBV_ILN_293 GBV_ILN_370 GBV_ILN_374 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2068 GBV_ILN_2106 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2700 AR 38 2018 1 23 04 40-67
language	English
source	Enthalten in Chinese journal of geochemistry 38(2018), 1 vom: 23. Apr., Seite 40-67 volume:38 year:2018 number:1 day:23 month:04 pages:40-67
sourceStr	Enthalten in Chinese journal of geochemistry 38(2018), 1 vom: 23. Apr., Seite 40-67 volume:38 year:2018 number:1 day:23 month:04 pages:40-67
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Cameroon volcanic line Adamawa Plateau Volcanic field Monogenetic volcano Magma mixing Petrogenesis
isfreeaccess_bool	false
container_title	Chinese journal of geochemistry
authorswithroles_txt_mv	Tiabou, Anicet Feudjio @@aut@@ Temdjim, Robert @@aut@@ Wandji, Pierre @@aut@@ Bardintzeff, Jacques-Marie @@aut@@ Che, Vivian Bih @@aut@@ Bate Tibang, Edith Ekatah @@aut@@ Ngwa, Caroline Neh @@aut@@ Mebara, François Xavier Onana @@aut@@
publishDateDaySort_date	2018-04-23T00:00:00Z
hierarchy_top_id	341897779
id	SPR021280150
language_de	englisch
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author	Tiabou, Anicet Feudjio
spellingShingle	Tiabou, Anicet Feudjio misc Cameroon volcanic line misc Adamawa Plateau misc Volcanic field misc Monogenetic volcano misc Magma mixing misc Petrogenesis Baossi–Warack monogenetic volcanoes, Adamawa Plateau, Cameroon: petrography, mineralogy and geochemistry
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topic_title	Baossi–Warack monogenetic volcanoes, Adamawa Plateau, Cameroon: petrography, mineralogy and geochemistry Cameroon volcanic line (dpeaa)DE-He213 Adamawa Plateau (dpeaa)DE-He213 Volcanic field (dpeaa)DE-He213 Monogenetic volcano (dpeaa)DE-He213 Magma mixing (dpeaa)DE-He213 Petrogenesis (dpeaa)DE-He213
topic	misc Cameroon volcanic line misc Adamawa Plateau misc Volcanic field misc Monogenetic volcano misc Magma mixing misc Petrogenesis
topic_unstemmed	misc Cameroon volcanic line misc Adamawa Plateau misc Volcanic field misc Monogenetic volcano misc Magma mixing misc Petrogenesis
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title	Baossi–Warack monogenetic volcanoes, Adamawa Plateau, Cameroon: petrography, mineralogy and geochemistry
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title_full	Baossi–Warack monogenetic volcanoes, Adamawa Plateau, Cameroon: petrography, mineralogy and geochemistry
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author_browse	Tiabou, Anicet Feudjio Temdjim, Robert Wandji, Pierre Bardintzeff, Jacques-Marie Che, Vivian Bih Bate Tibang, Edith Ekatah Ngwa, Caroline Neh Mebara, François Xavier Onana
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author-letter	Tiabou, Anicet Feudjio
doi_str_mv	10.1007/s11631-018-0272-9
title_sort	baossi–warack monogenetic volcanoes, adamawa plateau, cameroon: petrography, mineralogy and geochemistry
title_auth	Baossi–Warack monogenetic volcanoes, Adamawa Plateau, Cameroon: petrography, mineralogy and geochemistry
abstract	Abstract Three monogenetic cones in the Baossi–Warack area, Ngaoundéré, Adamawa Plateau forming part of the Cameroon Volcanic Line (CVL) are documented in this study. Basaltic lavas (< 1 $ km^{3} $) scattered around these vents and restricted volcaniclastic deposits were emplaced by Hawaiian and mild strombolian style eruptions. The lavas are porphyritic, mainly composed of olivine (chrysolite) and clinopyroxene (diopside and augite) phenocrysts and plagioclase (andesine) microphenocrysts. Accessory minerals include titano-magnetite and titano-hematite, nepheline, apatite and amphibole xenocrysts. Sanidine occurs in some samples and sodi-potassic albite in others. Some olivines and clinopyroxenes exhibit resorbed margins and thin reaction rims while plagioclase displays oscillatory zoning, and sieved textures as a result of magma mixing. Whole-rock geochemistry data indicates that the lavas are silica-undersaturated, composed of basanites and basalts, showing little compositional variations ($ SiO_{2} $: 39.20 wt.%–48.01 wt.%, MgO: 5.29 wt.%–9.70 wt.%). Trace elements patterns of these lavas suggest they are enriched in LILE including Pb, probably due to crustal contamination. REE patterns suggest cogenetic magmas below Baossi 1 and Baossi 2 volcanoes, and distinct sources below Warack volcano and nearby lavas. The lavas studied show affinity to high-µ (HIMU), enriched type I (EM1) and Oceanic Island Basalt (OIB)-like mantle signatures and thus indicate a heterogeneous mantle source underneath the vents as noted at other monogenetic and polygenetic volcanoes along the CVL. Primary melts derived from low degrees of partial melting (0.5%–2%) and encountered low rates of fractionation, and crustal contamination coupled with magma mixing. These melts evolved independently through structural weaknesses in the basement. © Science Press, Institute of Geochemistry, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2018
abstractGer	Abstract Three monogenetic cones in the Baossi–Warack area, Ngaoundéré, Adamawa Plateau forming part of the Cameroon Volcanic Line (CVL) are documented in this study. Basaltic lavas (< 1 $ km^{3} $) scattered around these vents and restricted volcaniclastic deposits were emplaced by Hawaiian and mild strombolian style eruptions. The lavas are porphyritic, mainly composed of olivine (chrysolite) and clinopyroxene (diopside and augite) phenocrysts and plagioclase (andesine) microphenocrysts. Accessory minerals include titano-magnetite and titano-hematite, nepheline, apatite and amphibole xenocrysts. Sanidine occurs in some samples and sodi-potassic albite in others. Some olivines and clinopyroxenes exhibit resorbed margins and thin reaction rims while plagioclase displays oscillatory zoning, and sieved textures as a result of magma mixing. Whole-rock geochemistry data indicates that the lavas are silica-undersaturated, composed of basanites and basalts, showing little compositional variations ($ SiO_{2} $: 39.20 wt.%–48.01 wt.%, MgO: 5.29 wt.%–9.70 wt.%). Trace elements patterns of these lavas suggest they are enriched in LILE including Pb, probably due to crustal contamination. REE patterns suggest cogenetic magmas below Baossi 1 and Baossi 2 volcanoes, and distinct sources below Warack volcano and nearby lavas. The lavas studied show affinity to high-µ (HIMU), enriched type I (EM1) and Oceanic Island Basalt (OIB)-like mantle signatures and thus indicate a heterogeneous mantle source underneath the vents as noted at other monogenetic and polygenetic volcanoes along the CVL. Primary melts derived from low degrees of partial melting (0.5%–2%) and encountered low rates of fractionation, and crustal contamination coupled with magma mixing. These melts evolved independently through structural weaknesses in the basement. © Science Press, Institute of Geochemistry, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2018
abstract_unstemmed	Abstract Three monogenetic cones in the Baossi–Warack area, Ngaoundéré, Adamawa Plateau forming part of the Cameroon Volcanic Line (CVL) are documented in this study. Basaltic lavas (< 1 $ km^{3} $) scattered around these vents and restricted volcaniclastic deposits were emplaced by Hawaiian and mild strombolian style eruptions. The lavas are porphyritic, mainly composed of olivine (chrysolite) and clinopyroxene (diopside and augite) phenocrysts and plagioclase (andesine) microphenocrysts. Accessory minerals include titano-magnetite and titano-hematite, nepheline, apatite and amphibole xenocrysts. Sanidine occurs in some samples and sodi-potassic albite in others. Some olivines and clinopyroxenes exhibit resorbed margins and thin reaction rims while plagioclase displays oscillatory zoning, and sieved textures as a result of magma mixing. Whole-rock geochemistry data indicates that the lavas are silica-undersaturated, composed of basanites and basalts, showing little compositional variations ($ SiO_{2} $: 39.20 wt.%–48.01 wt.%, MgO: 5.29 wt.%–9.70 wt.%). Trace elements patterns of these lavas suggest they are enriched in LILE including Pb, probably due to crustal contamination. REE patterns suggest cogenetic magmas below Baossi 1 and Baossi 2 volcanoes, and distinct sources below Warack volcano and nearby lavas. The lavas studied show affinity to high-µ (HIMU), enriched type I (EM1) and Oceanic Island Basalt (OIB)-like mantle signatures and thus indicate a heterogeneous mantle source underneath the vents as noted at other monogenetic and polygenetic volcanoes along the CVL. Primary melts derived from low degrees of partial melting (0.5%–2%) and encountered low rates of fractionation, and crustal contamination coupled with magma mixing. These melts evolved independently through structural weaknesses in the basement. © Science Press, Institute of Geochemistry, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2018
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title_short	Baossi–Warack monogenetic volcanoes, Adamawa Plateau, Cameroon: petrography, mineralogy and geochemistry
url	https://dx.doi.org/10.1007/s11631-018-0272-9
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Baossi–Warack monogenetic volcanoes, Adamawa Plateau, Cameroon: petrography, mineralogy and geochemistry

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