中国科学院机构知识库网格系统: Increased aridity across the Permian-Triassic transition in the mid-latitude NE Pangea

中国科学院机构知识库网格

Chinese Academy of Sciences Institutional Repositories Grid

Increased aridity across the Permian-Triassic transition in the mid-latitude NE Pangea

文献类型：期刊论文


作者	Can Cui 1,2; Changqun Cao（曹长群）2
刊名	GEOLOGICAL JOURNAL
出版日期	2021-02-26
卷号	56 页码:6162–6175
关键词	aridity, chemical index of alteration, chemical weathering, Dalongkou section, Permian– Triassic transition
DOI	10.1002/gj.4123
英文摘要	The Dalongkou section in Xinjiang, Northwest China has preserved a continuous ter- restrial Late Permian–Early Triassic sequence with well-studied information of biota evolution and isotopic excursion. In order to know the corresponding palaeoclimatic and palaeoenvironmental evolution in this critical transition, chemical weathering indexes (chemical index of alteration [CIA], plagioclase index of alteration [PIA], and chemical index of weathering (CIW)) are analysed in high resolution across the Permian–Triassic Boundary. Results show that the declining trend of the CIA, PIA, and CIW was related to the continuous decrease of the chemical weathering in the latest Permian. The climate in the mid-latitude NE Pangea was becoming increasingly arid in a generally greenhouse warm climate, causing widespread wildfire and turn- over of the fauna and biota, coupled with the environmental deterioration expressed by the anomalies of carbon and mercury. Climatic conditions oscillated in the Early Triassic with possible intermittent rainfall and was likely affected by the strengthen- ing of the megamonsoon. In the latest Permian–earliest Triassic, whether chemical weathering strengthened or weakened, as well as whether the climate was increas- ingly arid or humid, varied in the different places. The possible reasons inducing this need to be further explored.
源URL	[http://ir.nigpas.ac.cn/handle/332004/46348]
专题	中国科学院南京地质古生物研究所
作者单位	1.State Key Laboratory of Paleaobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, China 2.Nanjing Institute of Geology and Palaeontology, University of Science and Technology of China, Hefei, Anhui, China
推荐引用方式 GB/T 7714	Can Cui,Changqun Cao. Increased aridity across the Permian-Triassic transition in the mid-latitude NE Pangea[J]. GEOLOGICAL JOURNAL,2021,56:6162–6175.
APA	Can Cui,&Changqun Cao.(2021).Increased aridity across the Permian-Triassic transition in the mid-latitude NE Pangea.GEOLOGICAL JOURNAL,56,6162–6175.
MLA	Can Cui,et al."Increased aridity across the Permian-Triassic transition in the mid-latitude NE Pangea".GEOLOGICAL JOURNAL 56(2021):6162–6175.

入库方式： OAI收割

来源：南京地质古生物研究所

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