龙亭矿区中深部4#煤层煤质特征及聚煤规律  

Coal Quality Characteristics and Coal Accumulation Patterns of No.4 Seam at Medium Depth in Longting Mining Area

作　　者：潘春娟[1] 王辉[1] 范玉海[1] 王俊峰[1] 崔胜[1] 尹卫军[1] 王军[2] 

机构地区：[1]中煤航测遥感局煤航地质勘查院,陕西西安710054 [2]西安财经学院,陕西西安710100

出　　处：《能源与节能》2015年第11期1-2,共2页Energy and Energy Conservation

基　　金：国家科技重大专项(2008ZX05025-006);国家重点基础研究发展计划"973"项目(2015CB453000);国家自然科学基金(U1261111)

摘　　要：在收集研究区最新勘查资料的基础上，对4#煤层的煤质特征及聚煤规律进行研究，为建设高产高效煤矿及下一步煤炭资源勘查提供地质依据。结果表明：4#煤原煤总体属中灰煤，由南向北灰分逐渐变高，南部以低灰煤为主，北部以中灰煤为主；原煤总体属低硫煤，硫分等值线呈“哑铃”型，具有中间低、东西两侧高和西南高东北低的基本特征；研究区南部乔8孔～乔11孔附近聚煤期后古河流冲蚀作用强弱控制煤层厚度及沉积范围，其它区域聚煤期同沉积构造控制煤层厚度及沉积范围。On the basis of collecting the latest exploration data of the study area, this paper made the research of the coal quality characteristics and coal accumulation patterns of No.4 seam at medium depth, which provided geological basis of the construction of high production and efficiency coal mine and the next coal resources exploration. The results showed that the raw coal of No.4 seam generally be, longs to middle ash coal, ash yield gets higher from south to north. It＇s given priority to a low ash coal in the south and middle ash yield coal in the north. The No.4 seam belongs to low-sulfur coal, and shows ＂dumbbell＂ type in sulfur contour map, with the basic characteristics of low in the middle, high on both east and west sides and higher in southwest, lower in northeast. Tile thickness and deposition range of the seam were controlled by ancient fluvial erosion after tile coal-accumulating period around the Qiau 8-11 holes in the south of study area and in the other area, during the coal-accunmlating period were controlled by syndepositional structures.

关 键 词：煤质特征 聚煤规律 中深部4#煤层 龙亭矿区 渭北石炭-二叠纪煤田 

分 类 号：P618[天文地球—矿床学]