[an error occurred while processing this directive] 高校地质学报 2003, 9(3) 440-449 DOI:     ISSN: 1006-7493 CN: 32-1440/P

本期目录 | 下期目录 | 过刊浏览 | 高级检索                                                            [打印本页]   [关闭]
文章目录
扩展功能
本文信息
Supporting info
PDF(2612KB)
[HTML全文]
参考文献[PDF]
参考文献
服务与反馈
把本文推荐给朋友
加入我的书架
加入引用管理器
引用本文
Email Alert
文章反馈
浏览反馈信息
本文关键词相关文章
本文作者相关文章
王贤
张秀莲
孙宇
林勋
覃天
PubMed
Article by
Article by
Article by
Article by
Article by
贵州东部中上寒武统层序地层学及台地演化
王贤1 2, 张秀莲1, 孙宇2, 林勋2, 覃天2, 曲伟2
1. 北京大学地质系,北京 10087l ; 2. 新疆油田分公司勘探开发研究院,新疆克拉玛依 834000
摘要: 通过对贵州东部丹寨一三都中上寒武统两个碳酸盐岩露头剖面的层序地层学研究,识别出3个(三级)层序及8个体系域,并认为由于构造升降运动,两露头剖面的沉积环境发生变化,该区台地类型由中寒武统的缓坡型陆棚演变成上寒武统的镶嵌陆架型台地。研究表明,自中元古宙晚期以来,研究区经历了由洋壳过渡到陆壳的演变过程,体现在该区自中寒武世至晚寒武世由广阔的坡缓底平的广海陆棚沉积,转为台地(斜坡)-广海(盆地)沉积环境。
关键词
Middle and Upper Cambrian in the East of Guizhou Province
WANG Xian1 2, ZHANG Xiu-1ian1, SUN Yu2, LIN Xun2, QIAN Tian2, Qu Wei2
1. Department of Geology, Beijing University, Beijing 100871, China; 2. Research Institute of Exploration and Development, Xinjiang Oilfield Company, Petroleum, Karamay, Xinjiang 834000, China
Abstract: Three 3rd-order sequences and eight system tracts are recognized in two outcrop sections of the Middle and Upper Cambrian in Danzai and Sandu,eastern Guizhou province.Because of the tectonic fluctuation activity,the sedimentary environments of the two outcrops changed and the Platform evolved from ramp shelf in the Middle Cambrian to rimmed shelf in Upper Cambrian.Since the late of Middle Proterozoic Era,the ocean crust evolved to continental crust gradually in Guizhou area.Therefore,there were two sedimentary models:a broad open sea shelf model with ramp platform and flat floor,formed in the Middle Cambrian;and a platform (ramp)-open sea(basin)sedimentary model,shaped in the Upper Cambrian.The sequence cycles was controlled by the evolution of regional tectonics,and the sedimentary sequence characters are very important to the analysis of sedimentary environment.
Keywords:
收稿日期 2003-09-20 修回日期 2003-09-20 网络版发布日期  
DOI:
基金项目:

通讯作者:
作者简介:
作者Email:

参考文献:
本刊中的类似文章

Copyright by 高校地质学报