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本文所述为1955—1957在阿尔明斯克苏維埃社会主义共和国卡德札兰銅钼矿床所做的生物地球化学研究成果。在卡德札兰,原生矿化在热液蝕变二长岩中,为黃銅矿、輝钼矿、黄铁矿等硫化物。矿石中次要矿物有孔雀石、石青、钼钨鈣矿、铁钼华、褐铁矿、黄鉄鉀礬和銅的次生硫化物——輝銅矿、銅兰、斑銅矿。輝钼矿氧化物是钼在矿床风化壳中移动的可能形式: 2MoS_2+9O_2+2H_2O=2(MoO_2·SO_4)+2H_2SO_4 天然水中經常有钼,証明钼在风化壳中活动性是很大的,且在地下水中(接近矿床)钼的聚集量有时超过銅的含量。在矿井水中,Cu与Mo的比例較在矿石中低10—15倍,說明钼在氧化带活动性比銅大。生物地球化学法找矿的效果以地質及土壤、气候条件为轉移。在干燥气候条件下,方法的深度昇高,干燥气候促成富集钼的潛水毛細管上升。此外,水份不足使植物根在土壤中更加
Described in this paper is the biogeochemical study of 1955-1957 at the Khadzalam copper-molybdenum deposit in the Soviet Socialist Republic of Alminsq. In Khadgar, the primary mineralization is hydrothermal altered monzogranite, chalcopyrite, molybdenite, pyrite and other sulfides. Secondary minerals in the ore are malachite, azurite, molybdenite, ferromolybdenum, limonite, toosmite and secondary sulfide Cu-chalcocite, copper blue, and cuprite. Molybdenum oxide is a possible form of molybdenum that migrates in weathering crust: 2MoS 2 + 9O 2 + 2H 2 O = 2 (MoO 2 .SO 4) + 2H 2 SO 4 Mo is often present in natural water, proving that molybdenum is very mobile in weathered crust The accumulation of molybdenum in groundwater (near the deposit) sometimes exceeds that of copper. In mine water, the ratio of Cu to Mo is 10-15 times lower than that of ore, indicating that molybdenum is more active in the oxidation zone than copper. Biogeochemical method of prospecting results in the geological and soil, climatic conditions for the transfer. In dry climates, the depth of the method increases and the dry climate causes the molybdenum-collecting diving capillary to rise. In addition, inadequate moisture gives plant roots more soil