| 新疆果子沟奥陶系部分地层中牙形石及其时代讨论 |
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| 引用本文： | 李永铁.新疆果子沟奥陶系部分地层中牙形石及其时代讨论[J].石家庄经济学院学报,1995(6). |
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| 作者姓名： | 李永铁 |
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| 作者单位： | 石油大学 |
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| 摘 要： | 果子沟地区奥陶系塔勒基河组和阿克塔什组中新发现的牙形石计有１５属１７种，其中重要分子有Ｐｙｇｏｄｕｓｓｅｒｒｕｓ、Ｅｏｐｌａｃｏｇｎｔｈｕｓｓｐ．Ｂｅｌｏｄｉｎａｃｏｎｆｌｕｅｎｓ和Ｐａｎｄｅｒｏｄｕｓｂｅｒｇｓｔｒｏｍｉ等。根据这些新发现的牙形石，并结合其它生物化石，文中主要对以上二组和呼独克达坂组的时代进行了讨论，认为原置于下奥陶统的塔勒基河组为跨越下、中奥陶统的组，其顶部归中奥陶统底部，而原归上奥陶统的阿克塔什组，其主体部分应为中奥陶统上部，只有顶部力上奥陶统下部，呼独克达坂组为上奥陶统中、上部。
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| 关 键 词： | 果子沟，塔勒基河组，阿克塔什组，牙形石，时代讨论 |
New Discovery of Conodont in the Parts of the Ordovician in Guozigou Region,Xinjiang |
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| Li Yongtie.New Discovery of Conodont in the Parts of the Ordovician in Guozigou Region,Xinjiang[J].Journal of Shijiazhuang University of Economics,1995(6). |
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| Authors: | Li Yongtie |
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| Abstract: | The Ordovician distributes sompletely and its stratigraphic study is fate detailed inGuozigou region,making it one of the stratigraphic standards in the Tianshan area.According to new discovery of conodont palaeontology and combining with graptolithina, anthozoa and trilobita ect, it is concluded that the Talerji Raver Formation is griddle and late EarlyOrdovician to early Middle Ordovician in age, and the Akertach Formation late Middle Ordovicianto early Late Ordovician. |
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| Keywords: | guozigill Talerji River Formation AKertach Formation Conedont times |
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