新疆石油地质

新疆石油地质 ›› 2000, Vol. 21 ›› Issue (1): 1-4.

• •    下一篇

青藏羌塘地区隐伏裂陷槽的识别及油气远景

王宜昌, 杨辉, 王永涛   

  1. 石油物探局研究院地研中心 河北涿州072751
  • 收稿日期:1999-08-30 出版日期:2000-01-01 发布日期:2021-01-15
  • 作者简介:王宜昌(1938-),男,高级工程师,从事物探解释工作。

Recognition of Buried Aulacogen and Hydrocarbon Potential in Qiangtang Area of Qinghai-Tibet Plateau

Wang Yichang, Yang Hui, Wang Yongtao   

  1. Senior Engineer, Geophysical Prospecting, Research Institute, Geophysical Exploration Bureau, Zhuozhou, Hebei 072751
  • Received:1999-08-30 Online:2000-01-01 Published:2021-01-15

摘要： 介绍了青藏高原羌塘盆地和措勤盆地的深部磁场特征,用隐伏裂陷槽的观点分析了这些特征。结合ＭＴ电性层深度图和中生界沉降带的厚度,将南北向正磁异常带(东经89°－90°)解释成晚古生代隐伏裂陷槽。该裂陷槽对北羌塘坳陷中生代的构造单元、沉积以及油气组合有很重要的控制作用。

关键词: 青藏高原, 磁场, 磁异常, 晚古生代, 中生代, 裂陷槽, 识别, 油气远景

Abstract: The deep magnetic field characteristics in Qiangtang basin and Cuoqin basin of Qinghai-Ti-bet plateau is presented and analyzed by means of viewpoint of buried aulacogen. In terms of MT electrical shell depth map and Mesozoic subsiding belt thickness, the S-N normal magnetic anomaly belt(89°-90°at east longitude) is interpreted as a buried aulacogen of Late Paleozoic which is of important controlling effects on the structural units, depositions and hydrocarbon occurences of Mesozoic in northerm Qiangtang depression.

Key words: Qinghai-Tibet plateau, Magnetic field, Magnetic anomaly, Late Paleozoic, Mesozoic, Aulacogen, Recognition, Hydrocarbon potential