| 羌塘雁石坪中侏罗统雀莫错组地层及沉积环境 |
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| 引用本文： | 王建坡,赵兵.羌塘雁石坪中侏罗统雀莫错组地层及沉积环境[J].沉积与特提斯地质,2004,24(3):43-47. |
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| 作者姓名： | 王建坡 赵兵 |
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| 作者单位： | 成都理工大学,四川,成都,610059 |
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| 基金项目： | 中国地质调查局"1∶25万《乌兰乌拉湖幅》区域地质调查"。 |
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| 摘 要： | 本文详细描述了雁石坪附近一段地层剖面,并根据地层的岩石组合特征将其归入雀莫错组;依据古生物化石特征,将其时代划为侏罗纪早巴通期。沉积环境分析表明,雁石坪剖面为一套海侵的半咸水潮坪相沉积。
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| 关 键 词： | 羌塘盆地 雁石坪 雀莫错组 中侏罗统 |
| 文章编号： | 1009-3850(2004)03-0043-05 |
| 收稿时间： | 2003/11/3 0:00:00 |
| 修稿时间： | 2004/7/9 0:00:00 |
Stratigraphy and sedimentary environments of the Qoimaco Formation in the Yanshiping region, Qiangtang |
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| WANG Jian-po,ZHAO Bing.Stratigraphy and sedimentary environments of the Qoimaco Formation in the Yanshiping region, Qiangtang[J].Sedimentary Geology and Tethyan Geology,2004,24(3):43-47. |
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| Authors: | WANG Jian-po ZHAO Bing |
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| Institution: | Chengdu University of Technology, Chengdu 610059, Sichuan, China |
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| Abstract: | The present paper deals, in details, with a stratigraphic section (formerly Matuo Formation) in the Yanshiping region, Qiangtang, which may be assigned to the Qoimaco Formation in the light of rock (associations), and to the early Bathonian (Middle Jurassic) according to organic fossils in the strata. The sedimentary facies analysis shows that the strata within the section belong to the delta and tidal-flat deposits. The palaeontological and palaeoecological data indicate that these strata were deposited in a brackish environment, with the sea water deepening upwards. |
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| Keywords: | Qiangtang Basin Yanshiping Qoimaco Formation Middle Jurassic |
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