| 四川龙门山石炭纪珊瑚组合序列 |
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| 引用本文： | 叶干
,杨菊芬.四川龙门山石炭纪珊瑚组合序列[J].地球科学,1988(5). |
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| 作者姓名： | 叶干 杨菊芬 |
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| 作者单位： | China University of Geosciences，Wuhan 430074 |
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| 摘 要： | 四川龙门山地区石炭系发育完整,生物化石丰富,是研究石炭系良好的地区之一。本文依据珊瑚化石演化序列,提出本区石炭系8个珊瑚组合序列。本区石炭系厚约220m,以碳酸盐岩沉积为主。上界与二叠系为假整合;下界和泥盆系连续沉积。在其下伏的地层中发现有孔虫Quasiendothyra Communis(Rauser),可归入上泥盆统,相当于西欧的艾特隆层。因此本区的下界和西欧的泥盆—石炭界线是接近的。
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| 关 键 词： | 生物组合 四川 石炭纪 珊瑚 |
CARBONIFEROUS CORAL SEQUENCE OF LONGMENSHAN, SICHUAN, CHINA |
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| Ye Gan Yang Jufen.CARBONIFEROUS CORAL SEQUENCE OF LONGMENSHAN, SICHUAN, CHINA[J].Earth Science-Journal of China University of Geosciences,1988(5). |
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| Authors: | Ye Gan Yang Jufen |
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| Abstract: | Jiangyou and Beichuan counties lie in Northwestern Sichuan pro-vince. The Carboniferous strata, which attain a total thickness of about 220m, are developed completely and its fossils are abundant, essentially corals, brachi-opods and foraminifera . The Carboniferous sediments are mainly limestone , which deposits in the shallow sea. According to the present sequence of corals, the Carboniferous biologic sequence is divided into 8 assemblages. They corresponded to south part and northwest part of China. |
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| Keywords: | biologic assemblages Sichuan Carboniferous coral |
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