新疆石油地质 ›› 1990, Vol. 11 ›› Issue (2): 117-121.

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塔里木盆地上第三系重矿物组合特征与地层对比

李郁德   

  1. 新疆石油管理局泽普石油天然气开发公司
  • 收稿日期:1989-10-27 发布日期:2020-05-15

CHARACTERISTICS OF HEAVY MINERAL COMBINATION AND FORMATION CORRELATION OF THE UPPER TERTIARY IN THE TARIM BASIN

Li Yude   

  1. Zepu Oil and Gas Development Corporation, Xinjiang Petroleum Administration Bureau
  • Received:1989-10-27 Published:2020-05-15

摘要: 塔里木盆地西部及北、东部上第三系西域组重矿物为绿帘石—角闪石组合,其颗粒以不规则为主,可见滚圆状;阿图什组上部为角闪石—绿帘石组合,下部为石榴石—绿帘石组合,均不见滚圆状颗粒;吉迪克及塔拉克组为石榴石—锆石组合。用重矿物资料对比,塔北中新统吉迪克组顶部之“宽灰绿条”不同于塔东出现的宽灰绿条(该部位为上新统),故而佩蒂庄提出的重矿物分带性在实践中是可应用的。

Abstract: In the Upper Tertiary of the Western, Northern and Eastern pr.rts of the Tarim Basin, heavy minerals exhibit epidote-hornblende combination with dominating irregular and few roundshaped grains in the Xiy u Formation, hornblende-epidote combination in the Upper Atushi Formation and Garnet-epidote combination in the lower Atushi Formation without round grains, garnet - zircon combination in the Jidike and Talake Formation, Comparison of the heavy mineral data shows that “the wide grey green strip” of the top of the Miocene Jidike Formation in the Northern Tarim is not correlated to that (which is Pliocene) appeared in the Eastern Tarim. Therefore, strip nature of heavy minerals suggested by Pettijohn is applicable in practice.