| 济源地区中奥陶统上马家沟组中的痕迹化石及其环境意义 |
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| 引用本文： | 齐永安 闫国顺. 济源地区中奥陶统上马家沟组中的痕迹化石及其环境意义[J]. 焦作工学院学报, 1997, 16(4): 51-54 |
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| 作者姓名： | 齐永安 闫国顺 |
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| 作者单位： | [1]焦作工学院化石燃料研究所 [2]河南省地质科学研究所 |
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| 摘 要： | 济源地区中奥陶统上马家沟组发育有大量的痕迹化石，对其生态习性分析表明它们形成在低氧、静水的局限性泥质碳酸盐台地环境中。云斑状构造是早期白云石交代作用优先沿着痕迹化石Ｔｈａｌａｓｉｎｏｉｄｅｓ潜穴进行，然后向围岩扩散而形成的。
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| 关 键 词： | 痕迹化石 局限性碳酸盐台地 上马家沟组 云斑状构造 |
Trace Fossils and Their Environmental Significance From Shangmajiagou Formation ( Upper Ordovician ), Jiyuan Area |
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| Qi Yongan et al. //Fossil , Fuel Research Institute,Jiaozuo Institute of Technology,Jiaozuo. Trace Fossils and Their Environmental Significance From Shangmajiagou Formation ( Upper Ordovician ), Jiyuan Area[J]. Journal of Jiaozuo Institute of Technology(Natural Science), 1997, 16(4): 51-54 |
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| Authors: | Qi Yongan et al. //Fossil & Fuel Research Institute Jiaozuo Institute of Technology Jiaozuo |
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| Affiliation: | Qi Yongan et al. //Fossil & Fuel Research Institute,Jiaozuo Institute of Technology,Jiaozuo 454000 |
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| Abstract: | Trace fossils are abundant in Shangmajiagou Formation, Jiyuan area. Analysis on the ethology of trace fossils indicates that they are preserved in poor oxygen and quiet seawater carbonates which were deposited within a limited environment of subtidal flats. The dolomitized patches were produced by early diagenetic dolomitization which preferentially began within Thalassinoides burrows and spread into the surrounding lime mud. |
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| Keywords: | trace fossils limited carbonate flats Shangmajiagou formation dolomitized patches |
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