REMOTE SENSING SURVEY OF BURNT COAL SEAMS BOUNDARY IN XIN-M1NG DISTRICT OF SHEN-FU COALFIELD, SHANXI PROVINCE
陕西神府煤田新民烧变区煤层自燃边界范围的遥感调查

Black/white aerial photographs with visible light (1:35000) are used as main information source to fulfil aerial remote sensing survey on scale of 1:50000 in our project. Distribution of burnt rock and ignition boundary of coal seams in Xin-ming district (covered an area of 1300 km2 in shen-fu coalfied) had been indentified (trapped). Author of this paper given an introduction to the methodology and results of burnt coal area investigation by means of remote sensing. Target of the investigation is an extinct-burnt area. The first task of the study started with basic geological characteristics investigation is to divide macro-lithotype of burnt rocks, determine its forming epoch and make approach to the mechanism of its genesis. The second task of the study is to establish preliminary interpreting indices by means of studying image features of burnt rock and ignition boundary, which is carried out in a known area selected in the light of existed data. The third task of the study is to complete the remote sensing investigation for burnt coal boundary all over the district, to replenish, molify, and perfect the original interpreting indices. During the investigation, interpretation was combined with survey; remote sensing was combined with conventional methods. Finally, the ignition boundaries of coal seams are trapped, the accuracy requirements are fulfilled through borehole examination.