Clay Mineral Analysis of the Early Triassic Tempestites, Lower Yangtze Region
详细信息
- 责任者：Bao Hanyong (State Key Laboratory of Marine Geology ; Tongji University ; Shanghai 200092 ; China) ; Han Guangmin
- 刊名：Journal of Jilin University
- 出版年：2010
- 卷期：40(4)
- 关键词：风暴沉积 ; tempestite deposit ; 粘土矿物 ; clay minerals ; 扬子地区 ; Yangtze Region
- 页码：p.947-954
- 图表：5 illus., 1 table, 19 refs.
- 分类号：0803
- issnNo：ISSN1671-5888
- isbnNo：CN22-1343/P
摘要
///Based on sampling analysis of clay minerals on Early Triassic storm deposits outcroped in Jingxian, Ningguo and Yixing in the Lower Yangtze region and integrated sedimentological and paleontologic studies, it is confirmed that when Kübler index (KI) increases the content of smectite decrease and smectite illitization would be restrained. The results show that the provenance of storm deposits from profiles of Ningguo and Yixing (sequenceⅠ) are of proximal type, while that of Jingxian profile (sequence Ⅱ) demonstrates a combination of proximal and distal type, which means that the location of Jingxian profile is closer to the transitional zone.
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