新疆石油地质

新疆石油地质 ›› 2003, Vol. 24 ›› Issue (5): 424-426.

• 油气勘探 • 上一篇    下一篇

库车孢型体Kuqaia研究的新认识

罗正江, 吴新莹, 王睿, 阿丽亚   

  1. 中国石油 新疆油田分公司 勘探开发研究院,新疆 克拉玛依 834000
  • 收稿日期:2003-01-03 发布日期:2021-01-14
  • 作者简介:罗正江(1972-),男,四川南充人,工程师,石油地质。联系电话:0990-6867875

New Understanding of Kuqaia Sporomorph

LUO Zheng-jiang, WU Xin-ying, WANG Rui, Aliya   

  1. Research Institute of Exploration and Development, Xinjiang Oilfield Company, PethoChina, Karamay, Xinjiang 834000, China
  • Received:2003-01-03 Published:2021-01-14

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摘要： 库车孢型体Kuqaia是一类表面纹饰类似于动物贝壳或腹足类口盖的疑源类化石,它以地质分布时限短、分布范围广、易于识别而广泛应用于地层划分、对比中。过去普遍认为其分布层位相当局限,新疆地区仅限于塔里木盆地侏罗系阳霞组、康苏组、杨叶组（下部）、准噶尔盆地侏罗系三工河组及井下相当层位,时代大致属于早侏罗世晚期或中晚期。最新研究成果证明:Kuqaia始现于早侏罗世早期,繁盛于早侏罗世晚期或中晚期,可延续分布至中侏罗世。

关键词: 塔里木盆地, 准噶尔盆地, 侏罗纪, 孢粉, 化石

Abstract: The sporamorph Kuqaia is an Acritarch fossil similar to animal shell or Gastropoda, which has been commonly used in formation classifications and correlations due to its properties of short geochronology, extensive distribution and easy to recognition. In the past, it was generally considered to be fairly limited in horizon distribution such as Jurassic Yangxia formation, Kangsu for-mation, lower part of Yangye formation in Tarim basin and Jurassic Sangonghe formation and corresponding downhole intervals in Junggar basin, and belong to late or middle-late period of Early Jurassic. The recent research indicates that Kuqaia originated in early period of Early Jurassic, flourished in late or middle-late period of Early Jurassic and may be distributed to Middle Juras-sic.

Key words: Tarim basin, Junggar basin, Jurassic, fossil

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