• 责任者：Li Ying (College of Geo-Resources and Information ; China University of Petroleum (Huadong) ; Qingdao 266555 ; China) ; Zhang Gongcheng
• 刊名：Coal Geology & Exploration
• 出版年：2011
• 卷期：39(1)
• 关键词：聚煤规律 ; coal accumulation regularity ; 沉积环境 ; sedimentary environment ; 琼东南盆地 ; Qiongdongnan Basin
• 页码：p.1-5
• 图表：4 illus., 18 refs.
• 分类号：1004
• 出版序号：20120347
• issnNo：ISSN1001-1986
• isbnNo：CN61-1155/P

The depositional characteristics, coal-accumulation law and coal forming environment of Yacheng Formation in coal-bearing strata are studied based on the analysis of the core, logging, and data of petrology, anthracology and coal property. On the basis of the analysis, the coal accumulation model was come up. Yacheng Formation can be divided into three members, which are memberⅠ, member Ⅱ and member Ⅲ.Yacheng Formation is the later period sedimention of graben Basin, which was composed of peddy sandstones, grit, medium-sandstone, mudstone, carbargilite, caustobiolith (coal). Coal accumulation model of fan dalta near the shallow sea and shoreland was found in Qiongdongnan Basin.