鹤岗煤田新华勘探区地质构造定量分析  

Geologic Structural Quantitative Analysis in Xinhua Exploration Area, Hegang Coalfield

作　　者：朱利岗 

机构地区：[1]中煤地质工程总公司,北京100073

出　　处：《中国煤炭地质》2013年第12期16-20,40,共6页Coal Geology of China

摘　　要：鹤岗煤田新华勘探区地质构造复杂,断层较为发育,对煤层赋存形态和煤层厚度产生了较强烈的改变运动。通过收集钻孔资料及断层数据,对该区断层数据开展数理统计与断层密度等值线分析,并对矿区30煤底板标高进行四次趋势面计算,以此研究断层构造发育规律及对该区煤炭开采造成的影响。研究表明:区内断层走向为NE、NW和近EW向,以北西向为主;断层密度等值线表明矿区内存在三个密闭的等值线圈;趋势面分析表明区中存在三处异常带且呈NW向展布,主要分布在矿区西北部的F2、F3,东北部的F25、F34,南部F10、F14、F27断层处;30煤的煤层在矿区中部较厚,在东南处和西北处煤层较薄,且西北处煤层厚度变化较为急剧,东南处煤层厚度变化较平稳。Geological structures in the Xinhua exploration area, Hegang coalfield are complex with developed faults, strongly impacted and altered on coal seam hosting configuration and thickness. Through borehole and fault data gathering, carried out fault data mathe- matical statistics and fault density isoline analysis, also quartic trend surface computation for No.30 coal seam floor elevation, on this account studied fault development pattern and impact on coal mining in the area. The study has shown： fault strikes in the area have NE, NW and near EW and mainly NW. Fault density isoline shows three closed isoline rings existed in the mine area. Trend surface analysis shows three anomalous belts have existed in the area and extending NW, anomalies mainly existed in northwest part F2, F3, northeast part F25, F34 and south part FIO, F14, F27 distributed areas. No.30 coal seam is thicker in central mine area, thinner in southeast and northwest, and that thickness variation in northwest is more rapid while in southeast relatively stable.

关 键 词：数理统计 断层密度等值线分析 趋势面分析 地质构造 

分 类 号：P628.1[天文地球—地质矿产勘探]