| 秦祁昆接合部二叠纪沉积建造时空分布 |
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| 引用本文： | 寇晓虎,张克信,林启祥,朱云海,陈奋宁,罗根明,徐亚东.秦祁昆接合部二叠纪沉积建造时空分布[J].地球科学,2007,32(5):681-690. |
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| 作者姓名： | 寇晓虎 张克信 林启祥 朱云海 陈奋宁 罗根明 徐亚东 |
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| 作者单位： | 中国地质大学地质过程与矿产资源国家重点实验室和教育部生物与环境地质重点实验室;中国地质大学地球科学学院;湖北武汉; |
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| 基金项目： | 高等学校全国优秀博士学位论文作者专项资金项目(No200228);;中国地质调查局1∶25万区域地质调查项目(Nos200413000007,1212010610316) |
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| 摘 要： | 研究区位于秦祁昆结合部及邻区.二叠纪时,研究区以南祁连构造地层带为界,呈现北陆南海对峙格局:北部的中祁连、北祁连和阿拉善主要为一套砾岩、砂岩和泥岩为主的河湖相沉积;南祁连为海陆交互相碎屑岩、灰岩沉积;南部西秦岭和东昆仑主要是以半深海-深海浊积岩、玄武岩和海山碳酸岩盐为主的多岛洋沉积.本次1∶25万临夏市幅和定西市幅地质填图中,笔者在西秦岭与南祁连结合部位的甘肃夏河县甘加一带,发现一套早-中二叠世小洋盆玄武岩和碳酸盐岩海山建造,与秦昆结合部布青山-花石峡-兴海一带的早-中二叠世多岛洋沉积建造可以对比.晚二叠世,北部的秦祁结合部仍为半深海-深海浊积岩沉积,而南部秦昆结合部则转换为前陆-磨拉石沉积建造.
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| 关 键 词： | 秦祁昆 二叠纪 沉积建造 多岛洋 |
| 文章编号： | 1000-2383（2007）05-0681-10 |
| 修稿时间： | 2007-06-16 |
The Distribution of Permian Sedimentary Sequences in the Adjacent Area of Qinling-Qilian-Kunlun |
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| KOU Xiao-hu,ZHANG Ke-xin,LIN Qi-xiang,ZHU Yun-hai,CHEN Fen-ning,LUO Gen-ming,XU Ya-dong.The Distribution of Permian Sedimentary Sequences in the Adjacent Area of Qinling-Qilian-Kunlun[J].Earth Science-Journal of China University of Geosciences,2007,32(5):681-690. |
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| Authors: | KOU Xiao-hu ZHANG Ke-xin LIN Qi-xiang ZHU Yun-hai CHEN Fen-ning LUO Gen-ming XU Ya-dong |
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| Affiliation: | 1. GPMR and BGEG Laboratories, China University of C-eosciences, Wuhan 430074, China ;2. Facultyof Earth Sciences, China University of Geosciences, Wuhan 430074, China |
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| Abstract: | The study area is located in the copulae of Qinling-Qilian-Kunlun and adjacent area. In Permian, with the borderline of tectonic-stratigraphic belt in South Qilian, the south is marine facies sediment environment and the north is continental facies sediment environment: In the middle Qilian, North Qilian and Alashan of north district, the sediment is conglomerate, sandstone and mudstone, and it belong to fluvial and lacustrine facies sediment environment; In the south Qilian of mid-district, the sediment en... |
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| Keywords: | Qinling-Qilian-Kunlun Permian Sedimentary formation Archipelagic Ocean |
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