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| STUDY ON THE COMPREHENSIVE EVALUATION METHOD OF GEOENVIRONMENTAL RADIOACTIVITY OF COALFIELDS IN NORTHEAST CHINA |
| LIU Qiang1, JIN Hong-tao1, ZHU Wei1, TIAN Hui1, ZHANG Sen1, JU Nan1, ZHANG Yan2, YAN Xiao-ming2 |
1. Shenyang Center of China Geological Survey, Shenyang 110034, China;
2. Liaoning Institute of Geology and Mineral Resources Co., Ltd., Shenyang 110032, China |
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Abstract By screening the natural radioactive logging data to obtain the continuous radioactivity data of strata, according to the position relation between anomaly layer and coal seam, the paper recognizes 4 types of anomalies, including coal seam, inter-coal seam, above-coal seam roof and below-coal seam floor, and establishes a comprehensive evaluation method for radioactivity in primary geological environment of coalfields. Through the analysis of evaluation method and result, it is believed that the geoenvironment of Bayanshan coalfield, Huhenuoer coalfield, Fuxin coalfield and Pingzhuang coalfield in Northeast China are obviously radioactive, thus the exploitation should attach importance to the environmental impact of radionuclide migration.
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Received: 06 February 2020
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2020, Vol. 29 
