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本课题以可见光黑白航空像片为主要信息源,对陕西神府煤田新民烧变区进行了1:5万航空遥感地质调查,圈定了该区烧变岩分布范围及煤层自燃边界线。文中着重介绍了遥感调查煤层烧变区的技术方法与工作成果。调查区为煤层自燃死火区。调查首先从烧变岩的基本地质特征入手,划分了烧变岩的宏观类型,确定了烧变岩的主要形成时代,探讨了烧变岩的形成机理;第二,根据掌握资料选取已知区,研究烧变岩及煤层自燃边界线的影像特征,建立初步解译标志;第三,在全区范围内进行煤层自燃边界线的遥感调查,并对解译标志进行补充、修改与完善。在调查中,解译与调绘相结合,遥感与地面调查方法相结合,最终圈定了区内各煤层的自燃边界线,并经钻孔验证,精度达到要求。
In this project, a black and white aerial photograph of visible light was taken as the main source of information, a 1: 50000 airborne remote sensing geological survey was carried out on the Xinmin burned zone of Shenfu coalfield in Shaanxi Province, and the distribution range of burnt rock and the boundary of coal spontaneous combustion were delineated. The paper mainly introduced the technical methods and work results of remote sensing investigation of coal seam burned zone. The investigation area is the coal spontaneous combustion dead zone. First of all, the investigation begins with the basic geologic characteristics of sinter-burial rock, divides the macroscopic types of sinter-burial rocks, determines the main formation ages of sinter-strained rocks, and discusses the formation mechanism of sinter-strained rocks. Second, according to the master data, , Studied the image features of sinter-affected rock and coal spontaneous combustion boundary line, and established preliminary interpretation signs. Thirdly, carried out remote sensing survey of coal spontaneous combustion boundary line in the whole area, and added, modified and perfected the interpretation signs. In the investigation, the combination of interpretation and drawing, the combination of remote sensing and ground survey methods, finally delimited the spontaneous combustion boundary line of each coal seam in the area, verified by drilling, and the accuracy was met.