云南省昭通地区宣威组C_5煤层硫分分布特征 .pdfVIP

学兔兔 第24卷4期 中 国 煤 炭 地 质 VoI．24 No．04 2012年 4月 COAL GEoL0GY OF CHINA Apr． 2012 doi：10．39696．issn．1674-1803．2012．04．04 文章编号：1674—1803(2012)04—0014—04 云南省昭通地区宣威组C5煤层硫分分布特征 张光超，乔军伟，李聪聪 (中国煤炭地质总局航测遥感局，陕西西安 710054) 摘 要：对云南省昭通地区晚二叠世 C 煤层硫分和灰分进行测试及资料分析，编制了C 煤层硫分分布等值线图，分 析了硫分、灰分分布特征及相关关系等。结果表明：研究区硫分大于1％的硫分赋存状态主要为硫铁矿硫，有机硫次 之，硫酸盐硫最少；硫分分布主要受到成煤环境的控制，自西向东逐渐由陆相过渡为滨海相，硫分含量呈逐渐增加的 趋势。而灰分分布与硫分呈负相关关系。在研究区中部陆相向滨海相过渡地带的洛旺向斜，硫分与灰分相对适中，是 优质煤炭资源的有利勘探开发区。 关键词：昭通地区；宣威组；C5煤层；硫分 中图分类号：TD712．72 文献标识码：A Sulfur Distribution Characteristics in Xuanwei Formation Coal Seam C5，Zhaotong Area，Yunnan Province Zhang Guangchao，Qiao Junwei and Li Congcong (Aerial Photogrammetry and Remote Sensing Bureau，CNACG，Xian，Shaanxi 7 10054) Abstract：After SUlfur and ash content tests and data analysis for late Permian coal seam C5 in the Zhaotong area，Yunnan Province， compiled C5 coal sulfur content isogram and analyzed sulfur，ash content distribution characteristics and dependency relation between them．The resuh has demonstrated that：the sulfur occurrence of coal with sulfur content1％ is mainly pyritic sulfur．organic sulfur the second．and SUifate sulfur the least．Sulfur distribution is mainly controlled by coa1一forming environment—terrestrial facies transiting to littoral facies from west to east，with a gradually increasing trend of sulfur content，while ash distribution is negatively correlated with sulfur．The middle study area Luowang syncline in a terrestrial to littoral transitional zone has relatively proper sulfur and a