摘要
鄂尔多斯盆地石炭系厚 0～ 6 0 0m ,属潮坪三角洲相。从鄂尔多斯沉积特征出发 ,由地表露头结合井下剖面讨论了该盆地石炭系层序地层特点。识别出两类层序界面。依层序界面特征划分出两个层序 ,分属于本溪期及太原期 ,每个层序由海进体系域和高水位体系域组成 ,缺失低水位体系域。讨论了凝缩段及体系域的分布。
The Carboniferous strata, is up to 0～600 m thick in Ordos basin, are ascribed to the tidal-delta sediments.In this paper, the sequence stratigraphy of Carboniferous are discussed on the basis of sedimentological of the field exposure and drill section studies, two types of sequence boundaries have been recognized.According to the sequence boundaries cited above, two sequences have been distinguished, being assigned to the Benxi and Taiyuan periods. Each sequence is composed of transgressive systems tract and highstand systems tract,but lowstand systems tract are lacked.It is also discussed the distribution of the condensed beds and systems tract. [
出处
《西安工程学院学报》
2000年第1期35-37,共3页
Journal of Xi'an Engineering University
基金
国家九五重点科技攻关!( 96110 0 40 10 1)项目
关键词
鄂尔多斯盆地
石炭系
层序地层
体系域
Ordos basin
Carboniferous
sequence stratigraphy
systems tract
