Results 31 to 40 of about 1,196 (195)

Longevity of the Permian Emeishan mantle plume (SW China): 1 Ma, 8 Ma or 18 Ma? [PDF]

open access: yes, 2008
After the formation of the ∼ 260 Ma Emeishan large igneous province, there were two volumetrically minor magmatic pulses at ∼ 252 Ma and ∼ 242 Ma, respectively.
Shellnutt, JG   +3 more
core   +1 more source

Density structure of the crust in the Emeishan large igneous province revealed by the Lijiang- Guiyang gravity profile

open access: yesEarth and Planetary Physics, 2018
The Emeishan large igneous province (hereafter named by its acronym ELIP) is the first accepted large igneous region in China. The current study tries to reconstruct the density structure of the crust in this region.
Xi Zhang   +5 more
doaj   +1 more source

Identification of mantle plumes in the Emeishan Large Igneous Province

open access: yesEpisodes, 2007
The plume hypothesis has been recently challenged largely because some fundamental aspects predicted by the modeling of plumes are found to be lacking in some classic hotspot regions. This review paper summarizes recent achievements made in the late Permian Emeishan continental flood basalt province in southwest China. Data from various disciplines are
Xu, Yi-Gang   +10 more
openaire   +2 more sources

Effects of Deep Fluids on Middle Permian Dolomite of the Western Sichuan Basin

open access: yesFrontiers in Earth Science, 2022
Deep fluid activity is closely related to carbonate reservoir transformation as well as oil and gas accumulation. The large-scale deep fluid activity caused by Emeishan large igneous province (ELIP) brought a lot of deep material and energy to Sichuan ...
Huiwen Huang   +9 more
doaj   +1 more source

Melt Diversity and Magmatic Evolution in the Dali Picrites, Emeishan Large Igneous Province [PDF]

open access: yesJournal of Geophysical Research: Solid Earth, 2018
AbstractPicrites are potentially near‐primary melts that offer rare insights into the earliest stages of magmatic evolution. However, without detailed investigation of magmatic processes, robust records of early melt evolution and mantle melting behavior cannot be acquired.
Ya‐Dong Wu   +8 more
openaire   +1 more source

Re-evaluating plume-induced uplift in the Emeishan large igneous province

open access: yesNature Geoscience, 2008
Numerical and fluid dynamic modelling predicts that mantle plumes should generate a broad domal uplift (>1,000 km wide, 500 to ⩾1,000 m high) preceding volcanism in large igneous provinces. The Emeishan large igneous province (southwest China) has been offered as the best example of plume-induced uplift, where kilometre-scale pre- and syn-volcanic ...
Peate, Ingrid Ukstins, Bryan, Scott
openaire   +2 more sources

SHRIMP zircon U–Pb ages from coal beds across the Permian–Triassic boundary, eastern Yunnan, southwestern China [PDF]

open access: yes, 2018
The first SHRIMP zircon U–Pb ages from coal beds close to the end-Permian mass extinction are reported from the C1 coal seam in the Yantang Mine in Laibin Town, Xuanwei County, eastern Yunnan Province.
Black   +41 more
core   +3 more sources

Can Eu Anomaly Indicate a Hydrothermal Fluid Si Source? A Case Study of Chert Nodules From the Permian Maokou and Wujiaping Formations, South China

open access: yesFrontiers in Earth Science, 2022
The Middle–Late Permian witnessed an unusual chert accumulation event along the margin of the Pangea and Paleo-Tethys realms, known as the “Permian Chert Event (PCE).” The PCE is well recognized in the Permian limestone from South China, in the forms of ...
Chenqing Li   +9 more
doaj   +1 more source

Contrasting geochemical signatures on land from the Middle and Late Permian extinction events [PDF]

open access: yes, 2014
The end of the Palaeozoic is marked by two mass‐extinction events during the Middle Permian (Capitanian) and the Late Permian (Changhsingian). Given similarities between the two events in geochemical signatures, such as large magnitude negative δ 13 C ...
Chakrabarti, Ramananda   +3 more
core   +1 more source

Genesis of Dolomite in Middle Permian Maokou Formation in Eastern Sichuan: Constraints from In Situ Geochemistry, Sr-Mg Isotopes, and Fluid Inclusions

open access: yesGeofluids, 2021
The dolostone reservoir of the Middle Permian Maokou Formation in Eastern Sichuan has good prospects for oil and gas exploration. Study of dolomitizing genesis of the Maokou Formation is essential for predicting the distribution of the dolostone ...
Yanxia Jiang   +8 more
doaj   +1 more source

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