Sedimentary Facies of Permian Clastic Rocks in Zhongguai-Wuba Area in Northwestern Margin of Junggar Basin

详细信息   

• 责任者：Li Bing (Key Laboratory of Petroleum Resources Research ; Institute of Geology and Geophysics ; Chinese Academy of Sciences ; Lanzhou 730000 ; China) ; Dang Yufang
• 刊名：Natural Gas Geoscience
• 出版年：2011
• 卷期：22(3)
• 关键词：碎屑岩 ; clastic rocks ; 沉积相 ; sedimentary facies ; 准噶尔盆地 ; Junggar Basin
• 页码：p.432-439
• 图表：6 illus., 1 table, 11 refs.
• 分类号：0803
• issnNo：ISSN1672-1926
• isbnNo：CN62-1177/TE

摘要

The northwest margin of Junggar Basin as a continental foreland-basin exists the profitable target of oil and gas. The sedimentary facies space is important for oil and gas exploration. The Permian clastic at the top of Carboniferous volcanic in the Zhongguai-Wuba area at the northwest margin of Junggar Basin is identified by logging data. Based on the sedimentary facies space, the authors consider that the deposits would be sourced from volcanic rocks in the Zhongguai bulge near the western part of the Hongche thrust faulting belt. The phase of tectonic uplift caused the sedimentary scope shrunk gradually from lower segment to upper segment during the Jiamuhe and Xiazijie Periods. At the Wuerhe period, the spread of water area and depositional base level rise caused continues deposition. The unique character of the structure and sedimentation in this area formed the preferable targets of oil and gas accumulation in the future exploration of oil and gas.