Significance of the Submarine Fan of Lower Permian Shoushangou Formation in West Ujimqin-Qi, Inner Mongolia
详细信息
- 责任者：Gong Fanhao (Shenyang Institute of Geology and Mineral Resources ; CGS ; Shenyang 110034 ; China) ; Huang Xin
- 刊名：Geology and Resources
- 出版年：2013
- 卷期：22(6)
- 关键词：砂体 ; sand bodies ; 沉积环境 ; sedimentary environment ; 海底扇形地 ; submarine fans ; 内蒙古 ; Inner Mongolia
- 页码：p.478-483
- 图表：8 illus., 1 table, 17 refs.
- 分类号：1003
- issnNo：ISSN1671-1947
- isbnNo：CN21-1458/P
摘要
The recognition about the sedimentary environment of Shoushangou Formation still lacks conclusive evidences at present. Based on the investigation in Tabinmiao forestry center, the Shoushangou Formation is recognized as a series of marine clastic deposition, characterized mainly by feldspathic litharenite, with graded beddings and parallel beddings,belonging to the Bouma sequence, developed with the zoophycos facies of trace fossil assemblagethe deposition is thus recognized as submarine fans. According to the rock types, thickness of single sandstone layer, and the ratio of sandstone and mudstone, three subfacies are divided, i.e. inner fan, middle fan and outer fan. The inner fan develops channel conglomerate; while the outer fan develops flysch trace fossils. The thick black mudstone of Shoushangou Formation could be the good hydrocarbon source rocks. The fan bodies are possibly effective reservoirs, with great prospects for oil and gas exploration.