摘要
煤层燃烧后,其顶底板的原岩受到高温烘烤,原岩中铁质矿物成分发生化学变化,最终形成含铁磁性矿物的烧变岩,其与围岩之间存在明显的磁性差异,这给高精度磁法探测火烧区提供了物理依据。本文以新疆某煤田为例,通过对实测地面高精度磁异常的分析与解译,总结利用高精度磁测有效圈定煤田火烧区边界的方法和经验,为以后类似的工作提供了有效的方法借鉴。
Abstract ： In the process of coal combustion, the iron minerals of the original rocks have some chemical changes because of the high tem- perature of the fire, and then form the burnt rocks which contain ferromagnetic minerals. The obvious magnetic discrepancy between burnt rocks and surrounding rocks provides the theoretical bases for the high precision magnetic method of fire area boundaries exploring. In this paper, taking one coalfield in Xinjiang as an example, according to analysis and interpretation of anomalies from ground high precision magnetic survey, a summary cff effective determination of coal combustion borders by high precision magnetic survey has been made and verified by drilling, which would provide a source of reference for determination of combustion borders in future.
出处
《内蒙古煤炭经济》
2016年第2期152-154,共3页
Inner Mongolia Coal Economy
关键词
烧变岩
高精度磁法
火烧区边界
2.5D人机交互反演
burnt rock
high precision magnetic
boundaries of fire area
2.5 D humancomputer interaction inversion
