| Age and General Characteristics of the Calimicrobialite near the Permian-Triassic Boundary in Chongyang, Hubei Province |
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| 作者姓名： | 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，Graduate School China University of Geosciences Wuhan430074 China，Faculty of Earth Sciences 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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| 基金项目： | This paper is supported by the National Natural Science Foundation ofChina ( Nos .40232025 ,40572002)，the National Science Fund forDistinguished Young Scholars (No .40325004) . |
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| 摘 要： | INTRODUCTIONCali microbialites near the Permian-Triassicboundary are a special sedi mentary framework whichis formed on the top of reefs or isolated carbonateplatforms after the end-Permian extinction. Cali mi-crobialite in South China was first found by Lehr-mann (1999) in Bianyang, Guizhou. Al most si multa-neously , Kershawet al .(1999) reported cali microbi-alites in East Sichuan. Discovery of Permian-Triassiccali microbialites in South China has attracted muchattention. Based o…
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| 关 键 词： | 牙形石 二叠纪 三叠纪 湖北 地质年代学 |
| 收稿时间： | 2005-12-05 |
| 修稿时间： | 2006-03-15 |
Age and General Characteristics of the Calimicrobialite near the Permian-Triassic Boundary in Chongyang, Hubei Province |
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| Yang Hao,Zhang Suxin,Jiang Haishui,Wang Yongbiao.Age and General Characteristics of the Calimicrobialite near the Permian-Triassic Boundary in Chongyang, Hubei Province[J].Journal of China University of Geosciences,2006,17(2):121-125,131. |
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| Authors: | Yang Hao Zhang Suxin Jiang Haishui Wang Yongbiao |
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| Institution: | 1. Department of Petroleum Geology and Sedimentology, Faculty of Earth Sciences, King Abdulaziz University, Jeddah, Saudi Arabia;2. Geology Department, Faculty of Science, Cairo University, Giza, Egypt;3. Department of Earth and Space Sciences, University of Washington, Seattle, WA, USA;1. Earth and Planetary Sciences, University of New Mexico, Albuquerque, NM 87131, United States;2. Iowa Geological and Water Survey, Iowa Dept. of Natural Resources, Iowa City, IA 52242-1319, United States;1. DST/NRF Research Chair in Shallow Water Ecosystems, Nelson Mandela Metropolitan University, Port Elizabeth 6031, South Africa;2. Department of Botany and the Coastal and Marine Research Institute, Nelson Mandela Metropolitan University, Port Elizabeth 6031, South Africa;3. South African Environmental Observation Network, Elwandle Coastal Node, Port Elizabeth 6031, South Africa;1. IANIGLA, CCT CONICET Mendoza, Av. Ruiz Leal s/n, Parque General San Martín, Mendoza M5502IRA, Argentina;2. CONICET — INGEOSUR (Instituto Geológico del Sur), Universidad Nacional del Sur, Departamento de Geología, San Juan 670, Bahía Blanca 8000, Argentina |
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| Abstract: | 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 bialites 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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| Keywords: | calimicrobialite conodont end-Permian Early Triassic Hubei |
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