新疆石油地质

新疆石油地质 ›› 1997, Vol. 18 ›› Issue (3): 231-233.

• 地层与沉积 • 上一篇    下一篇

塔中地区奥陶系碳酸盐重力流沉积.

李宇平, 王振宇   

  1. 塔里木石油勘探开发指挥部 新疆库尔勒 841000
  • 收稿日期:1997-02-04 出版日期:1997-09-01 发布日期:2021-01-18
  • 作者简介:李宇平,硕士 沉积学

GRAVTTY-FLOW DEPOSITION OF ORDOVICIAN CARBONATE IN TAZHONG AREA

Li Yuping, Wang Zhenyu   

  1. Tarim Petroleum Exploration and Development Headquarter, Korla, Xinjiang 841000
  • Received:1997-02-04 Online:1997-09-01 Published:2021-01-18
  • About author:Li Yuping, Master, Sedimentology

PDF

246

摘要： 塔中地区早奥陶世末期一中奥陶世初期受加里东运动影响,碳酸盐台地可能转变为孤立台地性质,台地东端与库满坳拉槽区的深海盆地之间以陡斜坡过渡,陡斜坡上发育碳酸盐重力流沉积。根据钻井资料该斜坡带上分出了三种不同沉积类型,即塌积灰岩、滑动沉积岩和碎石(屑)流角砾状灰岩。

关键词: 塔里木盆地, 中部, 奥陶纪, 碳酸盐沉积, 重力流沉积, 台地, 斜坡带

Abstract: In Tazhong area, the carbonate platform may be deformed into independent platform, resulting from the Galidonian event during the end of Early Ordovician to early period of Middle Ordovician. The steep slope occurs between the east end of the platform and deep-sea basin within Kuman aucolgon, above which gravity-low carbonate is deposited. based on the drilling data, three different sedimentary types are identified on the slope, namely, colluvial limestone, slip sedimentary rock, and debris flow brecciated limestone.

Key words: Tarim Basin, Ordovician, Carbonate deposit, Gravity flow deposit, Platform, Slope zone