石油与天然气地质 ›› 1995, Vol. 16 ›› Issue (3): 211-215.doi: 10.11743/ogg19950302

• 论文 • 上一篇    下一篇

新疆柯坪上三叠统沙井子组的重新厘订

刘秉理, 李罗照, 美衍文, 李艺斌, 肖传桃, 周淑媛   

  1. 江汉石油学院, 湖北荆沙, 434102
  • 收稿日期:1995-03-16 修回日期:1995-04-10 出版日期:1995-09-25 发布日期:2012-01-16
  • 基金项目:

    国家“八五”科技攻关项目成果(85-101)

REDEFINITION OF UPPER PERMIAN SHAJINGZI FORMATION IN KEPING, XINGJIANG

Liu Bingli, Li Luozhao, Jiang Yanwen, Li Yibin, Xiao Chuantao, Zhou Shuyuan   

  1. Jianghan Petroleum Institute, Jingsha, Hubei
  • Received:1995-03-16 Revised:1995-04-10 Online:1995-09-25 Published:2012-01-16

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536

摘要：

根据在柯坪县印干村西沙井子组大量分形类、双壳类和腹足类化石的发现,以及对剖面层序的再认识,重新厘订沙井子组的顶底界限:底界为下二叠统开派兹雷克组最末一层玄武岩或火山碎屑岩的顶面,二者为整合关系;顶界以灰绿色泥岩、粉砂岩与上覆下第三系砖红色粉碎屑岩或上第三系灰色砾岩分界,接触关系为假整合或不整合。

关键词: 新疆, 上二叠统, 沙井子组, 厘订

Abstract:

According to the great amounts of fossils includingostracodes, bivalvies and gastropodsdiscovered in the Shajingzi Formation in the west of Yingan Village, Keping County and therestudy on profile sequences, the authors have redefinited the bottom and top boundaries ofthe formation: the bottom boundary is the uppermost basalt or the top of vocaniclastic rockof the Kaipaizileik Formation which is in conformable contact with the Shajingzi Formation3the top boundary is grey-green mudstone and siltstone that is in disconformable contact withthe overlying Paleogene red coarse elastic rock and Neogene grey conglomerate.