e="COLOR: black; FONT-SIZE: 14pt; mso-font-kerning: 18.0pt; mso-bidi-font-weight: bold" lang=EN-US>e="Times New Roman">Sedimentary and Tectonic Features and Proto-Basin of Early Cretaceous Tanzhuang—Shenqiu Sag, Zhoukou Depression, in Southern Area of North China Craton
详细信息
- 责任者：Kuang Hongwei (Key Laboratory of Exploration Technologies for Oil and Gas Resources ; Ministry of Education ; School of Geophysics and Oil Resources ; Yangtze University ; Jingzhou 434023 ; China) ; Liu Yongqing
- 刊名：Geological Review
- 出版年：2009
- 卷期：55(6)
- 关键词：沉积盆地 ; sedimentary basins ; 河南 ; Henan Province
- 页码：p.804-815
- 图表：11 illus., 1 plate, 20 refs.
- 分类号：0300
- issnNo：ISSN0371-5736
- isbnNo：CN11-1952/P
摘要
e="FONT-FAMILY: ’Times New Roman’; FONT-SIZE: 14pt; mso-fareast-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang=EN-US>Located at the sourthern margin of the North China Craton, the Tanzhuang—Shenqiu sag, Zhoukou depression, is filled with Lower Cretaceous sediments in a huge thickness. Deposits in the sag are characterized by thinner grained clastic rocks with midium composition and texture maturations, such as mudstone, siltstone and sandstone, and especially rich in volcanic clastics. Based upon study of sandstone composition and Q—F—L diagram (Dickinson’ s diagram), geochemistry of major and REE elements of sediments and the geochronology of volocanic rocks, the authors suggest that the Tanzhuang—Shenqiu sag formed in a regional stretch tectonic setting in the Early Cretaceous, was a original fault basin.