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甲玛铜多金属矿床是冈底斯成矿带内与斑岩成矿作用有关的斑岩-矽卡岩型矿床。通过对甲玛矿区16号、32号勘探线剖面上主成矿元素以及其他常微量元素矿化分布规律的分析,指出在16线ZK1620~ZK1618之间存在筒状钼铜矿体,其角岩中矿体最大厚度491.38m,铜平均品位0.21%,钼平均品位0.046%,矿化中心位于ZK1616附近;同时,在林布宗组与多底沟组层间构造带中产出巨厚的矽卡岩型铜钼(金银)多金属矿体,矿体厚度最大达252.2m,铜平均品位0.75%,钼平均品位0.10%,金平均品位0.24g/t,银平均品位12.26g/t。在32线ZK3212~ZK3220范围内也存在筒状钼铜矿体,角岩型矿体最大厚度826m,铜平均品位0.24%,钼平均品位0.054%,矿化中心位于ZK3216附近;角岩矿体下部为矽卡岩型铜钼(金银)多金属矿体,矿体最厚处超过127.9m,铜平均品位0.72%,钼平均品位0.053%,金平均品位0.11g/t,银平均品位7.02g/t。研究表明,甲玛铜多金属矿存在一个以ZK1616~ZK3216一带为矿化中心的筒状矿体(角岩+矽卡岩型矿体),在筒状矿体的深部可能存在隐伏含矿斑岩体。
The Jiama copper polymetallic deposit is a porphyry-skarn type deposit associated with porphyry mineralization in the Gangdese metallogenic belt. Based on the analysis of the mineralization and distribution of the major mineralization elements and other trace elements in the exploration line profiles No.16 and No.3 of Jiama Mining Area, it is pointed out that there exists the tubular molybdenum-copper ore body between ZK1620 ~ ZK1618 in line 16, The maximum thickness of ore body is 491.38m, the average grade of copper is 0.21% and the average grade of molybdenum is 0.046%. The mineralization center is located near ZK1616. At the same time, there is a huge output of skull in the interlayer structure of Linbuzong Formation and Duodigou Formation Rock type copper-molybdenum (gold-silver) polymetallic ore body with the maximum thickness of 252.2 m, the average copper grade of 0.75%, the average molybdenum grade of 0.10%, the average gold grade of 0.24 g / t and the average silver grade of 12.26 g / t. In the 32-line ZK3212 ~ ZK3220 range there are also tubular molybdenum-copper ore body, the maximum thickness of horn-rock ore body 826m, copper average grade 0.24%, 0.054% molybdenum average grade, mineralization center is located near ZK3216; Is the skarn-type copper-molybdenum (gold-silver) polymetallic ore body with the thickest part of the ore body exceeding 127.9m, the average copper grade of 0.72%, the average molybdenum grade of 0.053%, the average gold grade of 0.11g / t and the average silver grade of 7.02g / t. The results show that there is a tubular ore body (hornfels + skarn type ore bodies) in the Jiama copper polymetallic deposit with ZK1616 ~ ZK3216 as the mineralization center, and there may be hidden ore-bearing spots in the deep part of the tubular ore body Rock mass.