摘要
针对陕北煤田勘探中煤层自燃区自燃边界的确定,采用了地面高精度磁测的方法技术,通过求ΔT垂向一阶导数,来突出异常体边部影响,提高相邻异常体异常迭加的分辨率,认为该方法是解决煤层自燃区(火烧区边界)的一种行之有效的方法。
Based on the defined boundary of self-ignition area in coal beds of the coal fields in Northern Shaanxi, the ground high-precision geomagnetic survey is an effective method for definition of the self-ignition area （ignition margin） occurring in coal beds, in which derivation of the vertically first derivative for protruding the abnormal margin adjacent to abnormal bodies and increase of the resolution abnormal superimposition of the neighboring abnormal bodies are included.
出处
《陕西地质》
2009年第1期62-67,共6页
Geology of Shaanxi
关键词
高精度磁测
磁异常
煤层自燃
分辨率
high-precision geomagnetic survey
magnetic anomaly
self-ignition coal beds
verification
