| 四川龙门山泥盆纪四射珊瑚 |
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| 引用本文： | 秦洪宾,蒋飞虎. 四川龙门山泥盆纪四射珊瑚[J]. 地球科学与环境学报, 1991, 0(1) |
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| 作者姓名： | 秦洪宾 蒋飞虎 |
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| 作者单位： | 西安地质学院地勘系(秦洪宾)，中原石油勘探局(蒋飞虎) |
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| 摘 要： | 本文记述了产于四川龙门山地区中、上泥盆统界线附近观雾山组和土桥子组的四射珊瑚。在大量珊瑚标本鉴定的基础上,建立了中泥盆世晚期至晚泥盆世初期的四个四射珊瑚化石组合。根据四射珊瑚的演化规律,确定以Peneckiella珊瑚类的兴起和Pseudozaphrentis hejiazhaiensis,Temnophyllun(Truncicarinulum)beichua-nensis珊瑚类的消失作为龙门山地区识别中、上泥盆统界线的标志。
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| 关 键 词： | 龙门山 观雾山组 土桥子组 四射珊瑚 |
RUGOSE CORALS OF DEVONIAN PERIOD IN THE LONGMESHAN,NORTH SICHUAN,CHINA |
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| Qin Hongbin. RUGOSE CORALS OF DEVONIAN PERIOD IN THE LONGMESHAN,NORTH SICHUAN,CHINA[J]. Journal of Earth Sciences and Environment, 1991, 0(1) |
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| Authors: | Qin Hongbin |
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| Affiliation: | Qin Hongbin(Xi'an College of Geology)Jiang Feihu (Zhongyuan Oilfield Exploration Bureau) |
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| Abstract: | The rugose corals described in the paper were collected from the D3/D2 boundary beds-the Guanwushan Formation and Tugiaozi Formation in the Longmens-han area.The 19 genera and the 45 species, including 5 new species, can be grouped into the following four coral assemblages. Upper Devonian:4. Peneckiella concabotabulata-Peneckiella shawoziensis assemblage; Middle Devonian:3. Pseudozaphrentis hejiazhaiensis-Temnophyllum(Truncicarinulum)beichuanensis assemblage, including 2 subassemblages; ( 2 ) Pseudozaphrentis he jiazhaiensis subassemblage; ( 1 ) Temnophyllum ( Truncicarinulum ) beichuanensis-Temnophyllum ( Truncica-rinulum ) aiensis subassemblage;2. Sinospongophyllum pseudocarinatum-Sinospongophyllum longmenshanense assemblage;1. Temnophyllum waltheri assemblage.The lower limit of Pcnechiella assemblage is roughly coincident with the lower limit of Polygnathus asymmetricus conodont zone.It can be regarded as the mark for recognizing the D3/D2 boundary in the Longmenshan area. |
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| Keywords: | rugose corals Longmenshan Guanwushan Tuqiaozi group |
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