淮南煤田丁集井田B组煤中硼元素与沉积环境演化分析  

Boron Content in Coal Group B and Depositional Environment Analysis in Dingji Minefield, Huainan Coalfield

作　　者：童文林[1] 刘昆[1] 陈肖[1] 

机构地区：[1]淮沪煤电有限公司丁集煤矿,安徽淮南232001

出　　处：《中国煤炭地质》2010年第9期1-3,共3页Coal Geology of China

基　　金：国家自然科学基金(40873070);淮南矿业(集团)有限责任公司科学研究项目联合资助

摘　　要：为了查清丁集矿区B组煤层的沉积环境及其赋存规律,对井田内3个补勘钻孔中142件煤样进行了测试分析,特别对硼元素的分布特征及其沉积环境进行了详细的探讨与分析,结果表明:从4-1煤至8煤硼元素呈现总体下降的趋势;B组煤层沉积在以咸水为主导的多变环境下,且大部分煤层沉积在半咸水—咸水的环境中;多变的沉积环境致使B组煤中部分煤层出现分叉与合并现象、其厚度较薄且间距较小。For a thorough investigation of coal group B depositional environment and its hosting pattern in the Dingji mine area,have tested and analyzed 142 coal samples from 3 boreholes of the supplementary exploration in the minefield.Especially carried out detailed discussion and analysis on boron distribution pattern and depositional environment,and the results have demonstrated that： from coal seams No.4-1 to No.8,the boron content presents a falling tendency as a whole;coal seams in group B were deposited in a mainly saline water variable environment,most coal seams deposited in brackish-saline water environment;the variable environment caused a part of coal seams in group B bifurcated and merged,their thicknesses are thinner and smaller intervals between them.

关 键 词：丁集井田 B组煤 硼 沉积环境 

分 类 号：P618.11[天文地球—矿床学]