Results 21 to 30 of about 1,196 (195)

Large igneous provinces and mass extinctions: an update [PDF]

, 2014
The temporal link between mass extinctions and large igneous provinces is well known. Here, we examine this link by focusing on the potential climatic effects of large igneous province eruptions during several extinction crises that show the best ...
Bond, David P. G., Wignall, Paul B.
core   +1 more source

The Late Capitanian Mass Extinction of Terrestrial Vertebrates in the Karoo Basin of South Africa

Frontiers in Earth Science, 2021
The Beaufort Group of the main Karoo Basin of South Africa records two major extinction events of terrestrial vertebrates in the late Palaeozoic.
Michael O. Day, Michael O. Day, Bruce S. Rubidge   +2 more
doaj   +1 more source

Mantle plume-lithosphere interactions beneath the Emeishan Large Igneous Province

, 2023
The input data used in our multi-observable probabilistic inversion include Rayleigh wave dispersion curves (phase_dispersion.zip), filtered elevation (elev_China_dat.xyz), filtered geoid height (geoid_China_dat.xyz), and surface heat flow (SHF_2019.txt).
Zhang, Anqi, Guo, Zhen, Afonso, Juan Carlos, Shellnutt, Gregory, Yang, Yingjie   +4 more
openaire   +1 more source

Petrology and geochemical characteristics of dolomite in the Middle Permian Maoukou Formation, central Sichuan

Petroleum Research, 2017
Dolomites of the Maokou Formation in the central Sichuan were mainly developed in the middle-upper part of Member 2 and the lower part of Member 3 of Maokou Formation, it could be divided into fine-to medium-grained calcareous dolomite, fine-to medium ...
Jianqiang Liu, Haofu Zheng, Bo Liu, Hongguang Liu, Kaibo Shi, Rongtao Guo, Xuefeng Zhang   +6 more
doaj   +1 more source

Geochemical Constraints on the Hydrothermal Dolomitization of the Middle-Upper Cambrian Xixiangchi Formation in the Sichuan Basin, China

Frontiers in Earth Science, 2022
The Middle-Upper Cambrian Xixiangchi carbonates in the Sichuan Basin have been pervasively dolomitized. In the presented work, petrographic investigation revealed three generations of the Xixiangchi dolomites, consisting of dolomicrite (D1, 5–20 μm) with
Jintong Liang, Jintong Liang, Jintong Liang, Sibing Liu, Luping Li, Luping Li, Jie Dai, Xiaotian Li, Xiaotian Li, Chuanlong Mou   +9 more
doaj   +1 more source

The biotic crisis of end-Guadalupian in the Hambast Valley section, Abadeh, southwest Iran and its comparison with coeval deposits in eastern Tethys [PDF]

Journal of Stratigraphy and Sedimentology Researches, 2021
The study of Faunal biodiversity distribution in the strata close to the Middle and Upper Permian boundary in the Hambast Valley section was carried out. Considering obvious environmental and faunal changes in the topmost horizon of the subunit 4a of the
Sakineh Arefifard, Sima Shahinfar
doaj   +1 more source

Interaction of magma with sedimentary wall rock and magnetite ore genesis in the Panzhihua mafic intrusion, SW China [PDF]

, 2008
International audienceIn SW China, several large magmatic Fe-Ti-V oxide ore deposits are hosted by gabbroic intrusions associated with the Emeishan flood basalts.
Arndt, Nicholas, Chauvel, Catherine, Gaillard, Fabrice, Ganino, Clément, Zhou, Mei-Fu   +4 more
core   +4 more sources

3-D azimuthal anisotropy structure reveals different deformation modes of the crust and upper mantle in the southeastern Tibetan Plateau

Frontiers in Earth Science, 2023
The tectonic evolution and deformation process of the southeastern Tibetan Plateau has been one of the focuses of the geoscience community in recent decades.
Zhiqi Zhang, Jikun Feng, Jikun Feng, Huajian Yao, Huajian Yao, Huajian Yao   +5 more
doaj   +1 more source

A Study on the Provenance of Early to Late Triassic Clastic Rocks From the Northwestern Sichuan Basin, Southwestern China: Constraints on the Early Mesozoic Tectonic Evolution of the Western Yangtze Block

Frontiers in Earth Science, 2022
U–Pb ages of 637 new detrital zircons of Triassic sandstones from the Northwestern Sichuan Basin (NWSB), together with the petrology and paleocurrent data, are used to constrain the sediment provenance and tectonic–paleogeographic evolution of the ...
Lifeng Meng, Lifeng Meng, Lifeng Meng, Wei Chen, Tong Shen, Jinfa Cai   +5 more
doaj   +1 more source

Crustal structure and the seismogenic environment in Yunnan imaged by double-difference tomography

Frontiers in Earth Science, 2023
The large-scale faulting and earthquake activities that developed extensively in the Yunnan area are associated with the collision of India and Eurasia. The fine crustal structure can provide a better understanding of the crustal deformation, seismogenic
Ya Sun, Ya Sun, Shilin Deng, Shilin Deng, Jiwen Huang, Jiwen Huang   +5 more
doaj   +1 more source