Morphological Characteristics and Genesis of Molar-Tooth Structures in Gaoyuzhuang Formation of Jixian Area
详细信息
- 责任者：Liu Ziliang (College of Geosciences ; China University of Petroleum ; Beijing 102249 ; China) ; Meng Xianghua
- 刊名：Acta Geoscientica Sinica
- 出版年：2011
- 卷期：32(1)
- 关键词：碳酸盐岩 ; carbonate rocks ; 生物成因构造 ; biogenic structure ; 天津 ; Tianjin
- 页码：p.27-36
- 图表：8 illus., 45 refs.
- 分类号：0803
- issnNo：ISSN1006-3021
- isbnNo：CN11-3474/P
摘要
Based on a detailed petrographic examination of MT structures from the Proterozoic Gaoyuzhuang Formation in Jixian, this paper made an interpretation of the microscale relationship between crack morphology and lithology as well as potential rheology and variability of the surrounding substrate by tracing the distribution of petrographically distinctive MT microspar. The results show that grain size, substrate lithology and substrate cohesion all played critical roles in the development of MT. On such a basis, this paper discusses the significance of the molar structure in the analysis of the ancient marine environment.