松辽盆地南部沙河子组孢粉组合

详细信息

收稿日期: 2013-03-26

修回日期: 2013-04-12

刊出日期: 2014-04-30

SPOROPOLLEN ASSEMBLAGE OF THE SHAHEZI FORMATION IN SOUTHERN SONGLIAO BASIN

Received Date: 26 March 2013

Revised Date: 12 April 2013

Publish Date: 30 April 2014

摘要: 松辽盆地南部沙河子组自下而上划分为2个孢粉组合.1）克拉梭粉（Classopollis）-拟云杉粉（Piceites）-紫箕孢（Osmundacidites）组合，分布于沙河子组一段.2）三角粒面孢（Granulatisporites）-三角瘤面孢（Lophotriletes）-无突肋纹孢（Cicatricosisporites）组合，分布于沙河子组二段.上述孢粉组合研究证明，沙河子组一段的地质时代为早白垩世凡兰吟期（Valanginian），沙河子组二段的地质时代为欧特里沃期（Hauterivian）.
- 松辽盆地南部 /
- 沙河子组 /
- 孢粉组合 /
- 早白垩世 /
- 吉林省
Abstract: Form bottom to top, the Shahezi Formation in the Southern Songliao Basin can be divided into two sporopollen assemblages, i.e. the Classopollis-Piceites-Osmundacidites assemblage and the Granulatisporites-Lophotriletes-Cicatricosisporites assemblage. The former is distributed in the first member of the Shahezi Formation; while the latter, in the second member. Study on the sporopollen assemblages demonstrates that the first member of Shahezi Formation geochronologically belongs to the Valanginian Age of Early Cretaceous Epoch; while the second member, Hauterivian Age.
- Southern Songliao Basin /
- Shahezi Formation /
- sporopollen assemblage /
- Early Cretaceous /
- Jilin Province