Results 151 to 160 of about 1,196 (195)
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Melting of a hydrous peridotite mantle source under the Emeishan large igneous province
Earth-Science Reviews, 2020Abstract Large igneous provinces on Earth result from anomalously enormous volcanic eruptions at high melt production rates. These eruptions are often linked to catastrophic events such as mass extinctions, global climate changes, or continental break-up. Decoding their petrogenesis is therefore of great importance for our comprehensive understanding
Rong Xu, Yongsheng Liu, Sarah Lambart
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Journal of Geophysical Research: Solid Earth, 2023
AbstractHydroclimate is an important factor controlling landscape evolution. But establishing the impact of hydroclimate is complicated by the influences of other processes and is especially hard to prove for those in deep time from geological record. During the late Permian, voluminous basaltic sediments were derived from the erosion of the Emeishan ...
Jianghai Yang +7 more
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AbstractHydroclimate is an important factor controlling landscape evolution. But establishing the impact of hydroclimate is complicated by the influences of other processes and is especially hard to prove for those in deep time from geological record. During the late Permian, voluminous basaltic sediments were derived from the erosion of the Emeishan ...
Jianghai Yang +7 more
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Emeishan large igneous province (SW China) and the mantle-plume up-doming hypothesis
Journal of the Geological Society, 2010Abstract: The Middle Permian ( c . 262 Ma) Emeishan Basalt Formation of SW China is a commonly cited example of a large igneous province (LIP) that formed as a result of a deep-mantle plume impinging on the base of the lithosphere and generating large regional-scale up-doming prior to volcanism.
Fitton, JG, Ali, JR, Herzberg, C
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Magmetic sulfide deposits in the Permian Emeishan large igneous province, SW China
2005Four genetic types of magmatic sulfide mineralization have been identified in the Emeishan large igneous province. These are: 1). Ni-Cu-(PGE) sulfide deposits produced by in-situ sulfide segregation, 2). PGE-enrich layers within layered intrusion, 3). Ni-Cu sulfide mineralization related to sulfide-bearing mush, and 4).
Xie-Yan Song +3 more
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Tectonophysics, 2018
Abstract The Emeishan large igneous province (ELIP) is widely considered to be a consequence of a mantle plume. The supporting evidence includes rapid emplacement, voluminous flood basalt eruptions, and high mantle potential temperature estimates. Several studies have suggested that there was surface uplift prior to the eruption of the Emeishan flood
Qiang Jiang, Nansheng Qiu, Chuanqing Zhu
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Abstract The Emeishan large igneous province (ELIP) is widely considered to be a consequence of a mantle plume. The supporting evidence includes rapid emplacement, voluminous flood basalt eruptions, and high mantle potential temperature estimates. Several studies have suggested that there was surface uplift prior to the eruption of the Emeishan flood
Qiang Jiang, Nansheng Qiu, Chuanqing Zhu
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Journal of Asian Earth Sciences, 2012
Abstract The mantle-derived felsic plutonic rocks of the Emeishan large igneous province consist of peralkaline and metaluminous varieties. The peralkaline rocks appear to be formed by fractional crystallization of mafic magmas whereas the metaluminous plutonic rocks appear to be derived by partial melting of underplated mafic rocks. The metaluminous
J. Gregory Shellnutt, Yoshiyuki Iizuka
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Abstract The mantle-derived felsic plutonic rocks of the Emeishan large igneous province consist of peralkaline and metaluminous varieties. The peralkaline rocks appear to be formed by fractional crystallization of mafic magmas whereas the metaluminous plutonic rocks appear to be derived by partial melting of underplated mafic rocks. The metaluminous
J. Gregory Shellnutt, Yoshiyuki Iizuka
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Geochimica et Cosmochimica Acta, 2006
This journal suppl.
Shellnutt, JG, Zhou, MF
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This journal suppl.
Shellnutt, JG, Zhou, MF
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International Geology Review, 2003
Although the mantle plume model has been increasingly adopted for generation of the Emeishan basalts, doubts have been cast on the viability of this model because of the relatively small dimensions of this large igneous province (LIP) compared with typical LIPs.
Long Xiao +4 more
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Although the mantle plume model has been increasingly adopted for generation of the Emeishan basalts, doubts have been cast on the viability of this model because of the relatively small dimensions of this large igneous province (LIP) compared with typical LIPs.
Long Xiao +4 more
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Lithos, 2017
Abstract Silicic rocks occur in the uppermost units of the longest volcanic succession (~ 5000 m thick) in the Binchuan area of the Permian Emeishan flood basalt province of SW China. They are predominantly rhyolites and to a lesser extent trachytes, both containing potassium feldspar megacrysts as the dominant phenocryst phase up to approximately 20
Li-Lu Cheng +4 more
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Abstract Silicic rocks occur in the uppermost units of the longest volcanic succession (~ 5000 m thick) in the Binchuan area of the Permian Emeishan flood basalt province of SW China. They are predominantly rhyolites and to a lesser extent trachytes, both containing potassium feldspar megacrysts as the dominant phenocryst phase up to approximately 20
Li-Lu Cheng +4 more
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Calcium Isotopes of Giant Plagioclase Basalts from Emeishan Large Igneous Province
SSRN Electronic Journal, 2022Wei Dai +8 more
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