| 大巴山奥陶系的研究 |
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| 引用本文： | 成汉钧,汪明洲,陈祥荣,许安东,陈淑娥. 大巴山奥陶系的研究[J]. 地球科学与环境学报, 1988, 0(1) |
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| 作者姓名： | 成汉钧 汪明洲 陈祥荣 许安东 陈淑娥 |
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| 基金项目： | “六五”期间国家重点攻关项目20—1—3成果的一部分 |
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| 摘 要： | 根据东西大巴山奥陶纪地层的差异性,划分为两个地层小区:宁强—西乡地层小区(西大巴山小区)和城口—巫溪小区(东大巴山小区)。对区内各剖面进行了划分和对比以后,分别建立起两小区内的综合地层分类系统。宁强—西乡小区分为三统、八组和十二个生物带(动物群),城口—巫溪小区分为三统、九组和十一个生物带(动物群)。将宁强—西乡小区宝塔组顶部的瘤状泥灰岩分出,与原涧草沟组合并,改称临湘组;并在剖面相互对比的基础上,讨论了七个有关问题。
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| 关 键 词： | 大巴山 奥陶系 生物带 |
A STUDY OF ORDOVICIAN SYSTEM IN THE MTS DABASHAN |
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| Cheng Hanjun Wang Mingzou Chen XiangrongXu Andong Chen Shue. A STUDY OF ORDOVICIAN SYSTEM IN THE MTS DABASHAN[J]. Journal of Earth Sciences and Environment, 1988, 0(1) |
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| Authors: | Cheng Hanjun Wang Mingzou Chen XiangrongXu Andong Chen Shue |
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| Affiliation: | Xi' an college of Geology |
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| Abstract: | The paper presents the major results of the investigation of Ord-ovican system in Mts. Dabashan. There are certain differences between the eastern and western Dabashan, and two stratigraphic subregions used to be divided i. e. Ningqiang-Xixiang ( in the west), and Chenkou-Wuxi ( in the east).Syn thetic stratigraphic system has been established in these two_subregions, respectively. It is divided into three series, eight formations, and twelve biozones in Ningqiang-Xixiang subregion, and three series, nine formations, and eleven biozones in Chengkou-Wuxi subregion. The correlation tables are presented in this paper, too. Then, some major problems are discussed. |
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| Keywords: | Dabashan Ordovician biozone |
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