云南昭通矿区龙潭组C5煤层煤中硫分布特征及成因 .pdfVIP

学兔兔 第25卷2期 中 国 煤 炭 地 质 V01．25 No．02 2013年 2月 C0AL GE0L0GY 0F CHINA Feb． 2013 doi：10．3969~．issn．1674-1803．2013．02．03 文章编号：1674—1803(2013)2-0012-04 云南昭通矿区龙潭组C5煤层煤中硫分布特征及成因 罗星云 刘红卫 (1．云南省煤田地质局 云南 昆明 650034，2．云南省地质调查局 云南 昆明 650051) 摘 要：云南昭通矿区无烟煤资源量大，全硫含量偏高，通过对龙潭组C 煤层煤中硫的分们特征及成因分析，认为 煤中硫含量变化规律受沉积环境控制，从东到四由海陆交互相过渡为陆相，硫含量总体逐渐降低，由高硫煤变为低 硫煤．煤中全硫含量与硫铁矿硫含量成正相关；高硫煤的成因与硫的来源、沉积环境、古陆顶面及沉积基底广泛分布 的玄武岩、凝灰岩有关。 关键词：晚二叠世；龙潭组；C 煤层；煤中硫；分布特征；成因；昭通矿区 中图分类号：P618．11 文献标志码：A Sulfur Distribution Characteristics and Genesis of Longtan Formation Coal Seam Cs in Zhaotong Mining Area，Yunnan Luo Xingyun ，Liu Hongwei f1．Yunnan Bureau of Coal Geological Exploration，Kunming，Yunnan 650034； 2．Yunnan Geological Survey，Kunming，Yunnan 65005 1) Abstract：The anthracite resource in the Zhaotong mining area is abundant with rather high total sulfur content．From distribution characteristics and genetic analysis of sulfur in Longtan formation coal seam C5，considered that the sulfur content variation has been controlled by sedimentary environment，from east tO west the interactive marine and terrestrial facies transited into terrestrial facies； sulfur content gradually decreased from high sulfur coal to low sulfur coal，total sulfur content in coal is positively correlated to pyritic sulfur content．The genesis of high sulfur coal has been related to the origin of sulfur，sedimentary environment，old land top surface and sedimentatT basement widely distributed basalt and tuff． Keywords：Late Permian Epoch；Longtan formation；coal seam