石油学报 ›› 1992, Vol. 13 ›› Issue (2): 198-201.DOI: 10.7623/syxb199202033

• 论文 • 上一篇    下一篇

云南景谷盆地晚第三纪介形类古生态与油气的关系

刘正明   

  1. 滇黔桂石油地质研究所
  • 收稿日期:1991-03-20 出版日期:1992-04-25 发布日期:2013-07-08

OSTRACODA ASSEMBLAGE IN NEOGENE IN JINGGU BASIN, YUNNAN PROVINCE AND ITS RELATION TO THE OIL AND GAS GENERATION

Liu Zhengming   

  1. Dian-Qian-Guei Institute of Petroleum & Geology
  • Received:1991-03-20 Online:1992-04-25 Published:2013-07-08

摘要: 通过景谷盆地晚第三纪三个介形类组合特征分析,说明生物所具有的继承性,又因环境的变化出现不同的种属类型,壳面的装饰和保存状况也发生了变化.景谷盆地晚第三纪中新世中期生物繁盛,有机质丰富,为油气生成提供了物质基础,同时有利的水介质条件和快速的沉积,为有机质的保存和转化成烃类提供了外界条件.

关键词: 云南省, 景谷盆地, 晚第三纪, 介形虫纲, 沉积环境, 油气生成, 有机碳量, 有机质类型

Abstract: Based on Ostracoda fossils collected from Neogene in Jinggu Basin,Yunnan Province,three Ostracod assemblage zones are established,as follows:1.Potamcoypris-Candoniella Assemblage zone;(Early Miocene)2.Herpetocypris-Metacyplis Assemblage Zone;(Middle-late Miocene)3.Leucocythere-llyocypris Assemblage Zone;(Pliocene)According to the abundance of Ostracoda with preservad state of their shell,the authorgives a discussion about the relation between the organic matter abundance and depositionalspeed as well as the Ostracoda and Gas and Oil generated in Jinggu Basin.