Age and General Characteristics of the Calimicrobialite near the Permian-Triassic Boundary in Chongyang, Hubei Province

杨浩; 张素新; 江海水; 王永标

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Age and General Characteristics of the Calimicrobialite near the Permian-Triassic Boundary in Chongyang, Hubei Province

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The calimicrobialites of Chongyang (崇阳), Hubei (湖北) Province, occur above the mass extinction line in the Late Permian reef facies. Below the boundary are the sponge reef limestone, crinoid limestone and algae-foraminifer bioclastic limestone of the Changxing (长兴) Formation. The calimicrobialites are generally composed of mid-coarse grains and microlite calcite with a structure of “graniphyic fabric” and stromatolite. The fossils discovered in the calimicrobialites include globular cyanobacteria, ostracods, micro-gastropods, bivalves, fish teeth and some micro-problematical fossils. Conodont fossils of Hindeodus parvus, H. typicalis and H. latidentatus were also found in the calimicrobialites. According to the conodonts, the calimicrobialites spanned the latest Permian and earliest Triassic in the Chongyang Section. The upper part above the first occurrence of Hindeodus parvus should be attributed to the earliest Triassic, and the lower part to the Changhsingian. The sedimentary structure, fossil composition and conodont zonation of the Chongyang calimicrobialites can be well correlated with the calimicrobialites found in other areas of South China.

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《地球科学学刊：英文版》 |2006年第2期|121-125|共6页
作者
杨浩; 张素新; 江海水; 王永标;
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作者单位

Graduate School;

China University of Geosciences;

Wuhan430074;

China;

Faculty of Earth Sciences;

China University of Geosciences;

Wuhan430074;

China;

State Key Laboratory of Geological Processes and Mineral Resources;

China University of Geosciences;

Wuhan430074;

China;

Faculty of Earth Sciences;

China University of Geosciences;

Wuhan430074;

China;

State Key Laboratory of Geological Processes and Mineral Resources;

China University of Geosciences;

Wuhan430074;

China;

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原文格式 PDF
正文语种 chi
中图分类 P597.3;
关键词
牙形石; 二叠纪; 三叠纪; 湖北; 地质年代学;

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1. Ostracod fauna across the Permian-Triassic boundary at Chongyang, Hubei Province, and its implication for the process of the mass extinction [J] . . 中国科学 . 2010,第006期
2. Climatic Suitability and Yield Gap Analysis of Maize in Hubei Province [A] . 古风 . 2018

Age and General Characteristics of the Calimicrobialite near the Permian-Triassic Boundary in Chongyang, Hubei Province

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