新疆石油地质

新疆石油地质 ›› 1997, Vol. 18 ›› Issue (4): 295-301.

• 地质勘探 •    下一篇

试论航磁异常与北疆裂谷系

王宜昌   

  1. 石油地球物理勘探局河北涿州 072751
  • 收稿日期:1997-04-05 出版日期:1997-12-01 发布日期:2021-01-18
  • 作者简介:王宜昌 高级工程师石 油地球物理勘探

ON AEROMAGNETIC ANOMALY AND RIFT SYSTEM IN NORTHERN XINJIANG

Wang Yichang   

  1. Petroleum Geophysical Exploration Bureau, Zuozhou, Hebei 072751
  • Received:1997-04-05 Online:1997-12-01 Published:2021-01-18
  • About author:Wang Yichang, Senior Engineer, .Geophysical Proaspecting

PDF

691

摘要： 北疆裂谷系包括 准噶尔、吐哈、伊犁三大盆地以及它们之间的部分山区。东西总长1 200km,南北宽约400km,面积约25x104km2.三个盆地被天山山系分割各在一方。但是航磁异常图却将三个盆地连结在一起,组成一个复杂的“三联式”强磁异常带。从异常特征及沉积建造分析,它很可能是北疆晚古生代裂谷系的反映。

关键词: 航磁勘探, 异常, 准噶尔盆地, 吐鲁番盆地, 伊犁盆地, 裂谷带

Abstract: Rift system in northem Xinjiang includes Junggar, Turpan-Hami, li basins and some mountainous area among them, with length of 1 200 km in EW direction, width of 400 km in NS direction, the area of 25x 104km2 . These basins are seperated by Tianshan mountains system, but three basins connected by aeromagnetic anomaly map, and fommed a complex“trifurcate” strong magnetic anomaly belt. According to analyses of anomaly characteristics and sedimentary formation, it might be a reflection of Late Paleozoic rift system in northem Xinjiang.

Key words: Aeromagnetic anomaly, Junggar basin, Turpan basin, Hamni basin, Ili basin, Rift belt