In order to determine the role of the phase state of elements in anomaly recognition, the authors studied the compositions of sulfide phase, oxide phase and combination phase of Cu in porphyry copper deposits and Zn in hydrothermal lead-zinc deposits. In the porphyry copper ore district, Cu exists mainly in sulfide phase and oxide phase, with the criteria of the ore-related anomaly being (wsulfide phase Cu + woxide phase Cu)/ wcombination phase Cu≥21、(wsulfide phase Cu + woxide Cu)/ wCu≥96%; in the lead-zinc ore district, Zn in the background area mainly exists as combination phase, whereas Zn in the anomalous sectors (wZn≥ 200×10-6) mainly exists as sulfide phase (including oxide phase), with the segments characterized by (wsulfide phase Zn + woxide phase Zn)/ wZn≥87%、(wsulfide phase Zn + woxide Zn)/ wcombination phase Zn≥7 being the favorable ore-prospecting segments and serving as the marks indicating exposed ores or concealed ores.
刘崇民, 胡树起, 马生明, 汤丽玲. 成矿元素相态对地球化学异常识别的作用[J]. 物探与化探, 2013, 37(6): 1049-1055.
LIU Chong-ming, HU Shu-qi, MA Sheng-ming, TANG Li-ling. THE ROLE OF THE PHASE STATE OF METALLOGENIC ELEMENTS IN THE RECOGNITION OF GEOCHEMICAL ANOMALIES. Geophysical and Geochemical Exploration, 2013, 37(6): 1049-1055.
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