| 豫西北奥陶系马家沟组三段的层序地层划分 |
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| 引用本文： | 高文秀1,牛永斌1,' target='_blank'>2. 豫西北奥陶系马家沟组三段的层序地层划分[J]. 中州煤炭, 2016, 0(11): 112-115，120 |
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| 作者姓名： | 高文秀1 牛永斌1 ' target='_blank'>2 |
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| 作者单位： | （1.河南省生物遗迹与成矿过程重点实验室，河南 焦作 454000； 2.河南理工大学 资源环境学院，河南 焦作 454000） |
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| 摘 要： | 通过对豫西北奥陶系马家沟组的岩性、实体化石与遗迹化石组分及分布特征分析，对层序格架内遗迹化石垂向分布特征进行研究，在以遗迹化石为界面识别标志的基础上，建立了层序地层格架，将马三段划分为1个Ⅲ级层序（SQ）、2个Ⅳ级层序（St1，St2）以及10个Ⅴ级准层序（Psq1—Psq10），对各准层序内对应的遗迹化石发育特征及垂向演化进行分析，对研究华北奥陶系层序地层划分有借鉴意义。
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| 关 键 词： | 层序界面 层序划分 遗迹化石 奥陶系 马家沟组 |
Sequence stratigraphic division of Ordovician Majiagou Formation in northwest of Henan Province |
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| Gao Wenxiu1,Niu Yongbin1,' target='_blank'>2. Sequence stratigraphic division of Ordovician Majiagou Formation in northwest of Henan Province[J]. Zhongzhou Coal, 2016, 0(11): 112-115，120 |
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| Authors: | Gao Wenxiu1 Niu Yongbin1 ' target='_blank'>2 |
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| Affiliation: | （1.Key Laboratory of Biogenic Traces & Sedimentary Minerals of Henan Province，Jiaozuo 454000，China； 2.School of Resources and Environment Engineering，Henan Polytechnic University，Jiaozuo 454000，China） |
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| Abstract: | Based on the composition and distribution characteristics of lithological characters，body fossils and trace fossils，sequence stratigraphy and the distribution characteristics of ichnofabricsin vertical. On the basis of using trace fossils interface identification marks，this paper established the sequence stratigraphic framework，and the third member of the Majiagou Formation is divided into 1 third-order sequence（SQ），2 fourth-order sequences（St1，St2） and 10 fifth-order parasequences（Psq1~Psq10）. Analyzed the development characteristics and vertical evolution of the corresponding trace fossils in each sequence. This study has great reference significance in reconstructing the Ordovician sequence classification of North China Basin. |
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| Keywords: | sequence boundaries sequence classification trace fossils Ordovician Majiagou Formation |
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