Recycled carbon degassed from the Emeishan plume as the potential driver for the major end-Guadalupian carbon cycle perturbations

作     者：Jiang Zhu Zhaochong Zhang M.Santosh Shucheng Tan Yinan Deng Qiuhong Xie Jiang Zhu;Zhaochong Zhang;M.Santosh;Shucheng Tan;Yinan Deng;Qiuhong Xie

作者机构：School of Earth SciencesYunnan UniversityKunming 650500China State Key Laboratory of Geological Processes and Mineral ResourcesChina University of GeosciencesBeijing 100083China Department of Earth SciencesUniversity of AdelaideSA 5005Australia 

出 版 物：《Geoscience Frontiers》 (地学前缘（英文版）)

年 卷 期：2021年第12卷第4期

页      面：86-92页

核心收录：

学科分类：083001[工学-环境科学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 07[理学] 08[工学] 070602[理学-大气物理学与大气环境] 0706[理学-大气科学] 

基　　金：by the National Key Research and Development Program of China(2016YFC0600502) the National Natural Science Foundation of China(41761134086,42002062) 111 Project(B18048) China Postdoctoral Science Foundation(2020 M673309) Postdoctoral Science Foundation of Yunnan Province(W8163007) 

主　　题：Recycled carbon Thermogenic carbon Carbon isotope excursion Environmental catastrophe Emeishan large igneous province 

摘      要：Massive gas emissions(e.g.,CO_(2),CH_(4) and SO_(2))during the formation of large igneous provinces(LIPs)have been suggested as the primary cause of dramatic climatic change and the consequent ecological collapses and biotic *** carbon of crustal sediments induced by intrusive magmatism throughout the LIPs is considered as the primary trigger for environmental catastrophe including mass extinction,as illustrated in the case of the Emeishan LIP in Southwest *** evaluate the Emeishan LIP to address the causal link between carbon degassing and environmental crises during the end-Guadalupian of Middle *** assessment of the carbon flux degassed from recycled oceanic crust in the Emeishan plume shows that recycled oceanic crust contributed significantly to the carbon *** evidence fromcarbonate carbon isotopic records at the Gualupian-Lopingian(G-L)boundary stratotype at Penglaitan of South China,our study suggests that carbon degassed from massive recycled components in the Emeishan plume served as a major end-Guadalupian(Middle Permian)carbon isotope *** model based on the Emeishan LIP also offers new insights into the important role of recycled carbon released from other LIPs in climatic change and mass extinctions,as in the cases of the end-Permian Siberian and end-Cretaceous Deccan *** work highlights that carbon released from subducted slabs is returned to the atmosphere via upwelling mantle plumes,which could drive global climatic change and mass extinction.