中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Quantitative evaluation of the sea-level drop at the end-Permian: Based on reefs

文献类型:期刊论文

作者Wu, YS; Fan, JS
刊名ACTA GEOLOGICA SINICA-ENGLISH EDITION
出版日期2003-03-01
卷号77期号:1页码:95-102
关键词sea-level drop eustatic reef Permian Changxingian
ISSN号1000-9515
文献子类Article
英文摘要The amplitude of pre-Quaternary sea level drop, H, can be calculated by using the formula H = D + To, where To is the original thickness from the top of the tidal deposits on the reef core to the bottom of the tidal deposits on the reef front, or to the bottom of the ancient meteoric vadose zone, or to the edge of the mixed-water dolostone zone. The identity and similarity between the sea-level drop amplitudes calculated from different reefs far away from each other indicates that such sea-level changes are eustatic rather than relative changes. Evidence of an end-Permian sea-level drop has been found on the Changxingian (i.e. the end of the Palaeofusulina zone) reefs at Ziyun in South China, including algal laminated deposits, sabkha-related dolostone, desiccation cracks, dissolution collapse breccia. According to calculation based on the meteoric dissolution zone of the reef-core sequence at Ziyun, Guizhou province, the amplitude of the sea-level drop at the end-Permian is about 89.3 m. Calculation via the dolomitized upper part of the Changxingian reef in Lichuan, Hubei Province, yields an 88.9 m amplitude of the sea-level drop at the end-Permian. Comparison shows that the sea-level drop recorded in the two distantly located reefs may be of eustatic type. So the amplitude of the sea level drop of the Tethys Sea at the end-Permian might be at least 89.3 m.
WOS关键词FACIES
WOS研究方向Geology
语种英语
WOS记录号WOS:000182869900013
出版者GEOLOGICAL SOC CHINA
源URL[http://ir.iggcas.ac.cn/handle/132A11/78499]  
专题中国科学院地质与地球物理研究所
通讯作者Wu, YS
作者单位Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714
Wu, YS,Fan, JS. Quantitative evaluation of the sea-level drop at the end-Permian: Based on reefs[J]. ACTA GEOLOGICA SINICA-ENGLISH EDITION,2003,77(1):95-102.
APA Wu, YS,&Fan, JS.(2003).Quantitative evaluation of the sea-level drop at the end-Permian: Based on reefs.ACTA GEOLOGICA SINICA-ENGLISH EDITION,77(1),95-102.
MLA Wu, YS,et al."Quantitative evaluation of the sea-level drop at the end-Permian: Based on reefs".ACTA GEOLOGICA SINICA-ENGLISH EDITION 77.1(2003):95-102.

入库方式: OAI收割

来源:地质与地球物理研究所

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