Sedimentary Characteristics and Coal-Accumulation Patterns of Xishanyao Formation in Yili Basin

详细信息   

• 责任者：Ma Shuai (College of Geology and Mineral Exploration Engineering ; Xinjiang University ; Urumqi 830047 ; China) ; Tian Jijun
• 刊名：Coal Geology & Exploration
• 出版年：2012
• 卷期：40(2)
• 关键词：层序地层学 ; sequence stratigraphy ; 聚煤规律 ; coal accumulation regularity ; 伊犁盆地 ; Yili Basin
• 页码：p.9-14
• 图表：3 illus., 14 refs.
• 分类号：1004
• issnNo：ISSN1001-1986
• isbnNo：CN61-1155/P

摘要

Xishanyao Formation is the main coal-bearing stratum in Yili basin. Based on the analyses of data about drilling, loggings, outcrops and palaeophytes, this paper studied the sequence stratigraphy of Xishanyao Formation in Yili Basin. Two sequences, SQ1 and SQ2, were identified with the classic sequence stratigraphy method, and five system tracts were subdivided according to the superposition style of strata and sedimentation cycle. The characteristics of sedimentary evolution of Xishanyao Formation were also defined through analyzing the sedimentary environments.  The results provided the basis for further exploration of coal resources in Xishanyao Formation in Yili Basin.