A COMPARISON OF SAMPLING MEDIA IN ULTRA-LOW DENSITY GEOCHEMICAL INVESTIGATION IN THE FOREST-SWAMP AREA OF HEILONGJIANG PROVINCE
CHENG Zhi-zhong1,2, WANG Xue-qiu2, XIE Xue-jin2, HU Zhong-xian1,3, YANG Zhao-wu1,3, BAO Zhi-min3
1. China University of Geosciences, Beijing 100083, China;
2. Institute of Geophysical and Geochemical Exploration, CAGS, Langfang 065000, China;
3. No.1 Regional Geological Survey of Heilongjiang Province, Harbin 150080, China
A comparative study of sampling media for ultra-low density geochemical investigation was conducted in Jiayin area, a typical forest-swamp landscape area in central Heilongjiang. A comparison between flood land sediments and active stream sediments reveals that the anomalies delineated by flood land surface sediments can not only indicate mineralization information but also reflect geological setting of the study area, whereas anomalies delineated by stream sediments are rather weak and can only reflect the information of exposed ore deposits. Studies show that surface sediments of the flood land seem to be the best sampling media in ultra-low density geochemical investigation in forest-swamp areas.
程志中,王学求,谢学锦,胡忠贤,杨兆武,包志民. 黑龙江森林沼泽区超低密度 地球化学调查采样介质对比[J]. 物探与化探, 2005, 29(3): 201-204.
CHENG Zhi-zhong, WANG Xue-qiu, XIE Xue-jin, HU Zhong-xian, YANG Zhao-wu, BAO Zhi-min. A COMPARISON OF SAMPLING MEDIA IN ULTRA-LOW DENSITY GEOCHEMICAL INVESTIGATION IN THE FOREST-SWAMP AREA OF HEILONGJIANG PROVINCE. Geophysical and Geochemical Exploration, 2005, 29(3): 201-204.
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