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International Geology Review, 2006
The Zhaotong native copper deposit in Yunnan, Southwest China, is associated with the upper Middle Permian Emeishan flood basalts and is mainly hosted in the upper part of the Emeishan volcanic succession. Native copper mainly appears as disseminations in basaltic tuffs, and vesicular and brecciated tops of subaerial lava flows. Sheets of native copper
Qi, L +6 more
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The Zhaotong native copper deposit in Yunnan, Southwest China, is associated with the upper Middle Permian Emeishan flood basalts and is mainly hosted in the upper part of the Emeishan volcanic succession. Native copper mainly appears as disseminations in basaltic tuffs, and vesicular and brecciated tops of subaerial lava flows. Sheets of native copper
Qi, L +6 more
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Chinese Journal of Geochemistry, 2010
The Emeishan basalt has a high Cu background value (170×10−6 on average), and thus provides a ore-forming material source for copper ores. The collected samples were exposed in basalt lavas of the third segment of the Emeishan basalt eruptive cycle.
Fudong Wan +3 more
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The Emeishan basalt has a high Cu background value (170×10−6 on average), and thus provides a ore-forming material source for copper ores. The collected samples were exposed in basalt lavas of the third segment of the Emeishan basalt eruptive cycle.
Fudong Wan +3 more
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International Geology Review, 2001
The widespread Emeishan igneous province in southwestern China comprises the Emeishan continental flood basalts (ECFB) and associated mafie-ultramafic intrusions. The ECFB have variable SiO2, ranging from 43.6 to 52.1 wt%, Al2O3 from 5.0 to 12.6 wt%, and total alkali (K2O + Na2O) from 0.7 to 6.5 wt%. These oxides exhibit negative correlations with MgO (
Song, XY +5 more
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The widespread Emeishan igneous province in southwestern China comprises the Emeishan continental flood basalts (ECFB) and associated mafie-ultramafic intrusions. The ECFB have variable SiO2, ranging from 43.6 to 52.1 wt%, Al2O3 from 5.0 to 12.6 wt%, and total alkali (K2O + Na2O) from 0.7 to 6.5 wt%. These oxides exhibit negative correlations with MgO (
Song, XY +5 more
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Journal of Mountain Science, 2017
In order to explain the formation process of slope hazards, and to identify the key factors leading to instability of a slope, Emeishan basalt saprolite in vadose zones of the Touzhai landslide in Zhaotong, Yunnan, was studied. The formation and evolution of Emeishan basalt saprolite was examined using, amongst other techniques, field investigations ...
Ji-qing Yang +6 more
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In order to explain the formation process of slope hazards, and to identify the key factors leading to instability of a slope, Emeishan basalt saprolite in vadose zones of the Touzhai landslide in Zhaotong, Yunnan, was studied. The formation and evolution of Emeishan basalt saprolite was examined using, amongst other techniques, field investigations ...
Ji-qing Yang +6 more
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Review of the Link between the Hongge Layered Intrusion and Emeishan Flood Basalts, Southwest China
International Geology Review, 2005Generation of the Late Permian Emeishan large igneous province has recently been attributed to the ascent of a mantle plume head. The Hongge layered intrusion, hosting a giant Fe-Ti-V deposit and Ni-Cu-PGE mineralization, is contemporaneous and chemically correlated with high-Ti type Emeishan flood basalts in the Pan-Xi area, southwestern China ...
H. Zhong +3 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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Contributions to Mineralogy and Petrology, 2014
Giant plagioclase basalts (GPBs) reflect the storage of flood basalt magma in subvolcanic magma chambers at crustal depths. In this study of the Late Permian Emeishan large igneous province in southwest China, we focus on understanding the plumbing system and ascent of large-volume basaltic magma.
Li-Lu Cheng +4 more
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Giant plagioclase basalts (GPBs) reflect the storage of flood basalt magma in subvolcanic magma chambers at crustal depths. In this study of the Late Permian Emeishan large igneous province in southwest China, we focus on understanding the plumbing system and ascent of large-volume basaltic magma.
Li-Lu Cheng +4 more
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REE mineralization related to weathering of the late Permian Emeishan basalts
Journal of Geochemical Exploration, 2023Maochao Zhang +5 more
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Chemical Geology, 2006
Abstract The 260 Ma Emeishan continental flood basalts (ECFB) occur in SW China and northern Vietnam. A 550-m-thick sequence of ECFB in Guizhou Province (SW China) is composed of 12 basaltic lava flows, each ranging from 10 to 140 m in thickness. All samples belong to the high-Ti basalts (TiO 2 = 1.9–4.4 wt.% and Ti/Y = 400–700).
Zhou, MF, Qi, L
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Abstract The 260 Ma Emeishan continental flood basalts (ECFB) occur in SW China and northern Vietnam. A 550-m-thick sequence of ECFB in Guizhou Province (SW China) is composed of 12 basaltic lava flows, each ranging from 10 to 140 m in thickness. All samples belong to the high-Ti basalts (TiO 2 = 1.9–4.4 wt.% and Ti/Y = 400–700).
Zhou, MF, Qi, L
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Epigenetic hydrothermal features of the Emeishan basalt copper mineralization in NE Yunnan, SW China
2005Native copper in basalt copper deposits in NE Yunnan, SW China, formed in fissures of basalt or in carbonaceous sedimentary interbeds of basalt together with organic matter such as bitumen. The mineral fills in fissures of bitumen and replaces plant fragments. Bitumen is of organic origin, with its_δ13CV-PDB values ranging from −27.3 to_−33.1‰.
Houmin Li +5 more
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