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我国已探明的锰矿资源储量已居世界第三位。但贫矿多,富矿少;碳酸锰矿石多,氧化锰矿石少;年产量满足不了冶金工业发展的需要。作者从五个方面提出了对今后加强锰矿的找矿工作的认识。一、大力寻找富矿。找小而富的矿,积少成多。注意次生氧化富矿(如古风化壳矿床、断裂交叉处和古岩溶中的矿床、厚大次生氧化矿体的核心或底部);原生沉积富矿;热液改造的脉状矿床。二、坚持找氧化矿。找粉砂—泥质建造和喷发—沉积建造中的氧化锰矿、断裂交叉和箱状隆起轴部的次生氧化矿体和北方新生代以前的古风化矿床。三、注意新的含矿层位。如元古代、白垩纪和第三纪地层中的锰矿层。四、运用岩相和古构遗分析方法,找隐伏矿。五、加强我国北方的找矿工作,克服锰矿分布的不平衡,指出了北方找锰的方向。
China has proven reserves of manganese resources has become the world’s third place. However, there are many lean mines and few rich mines; there are many manganese carbonate ore and little manganese oxide ore; the annual output can not meet the needs of the development of metallurgical industry. From five aspects, the author put forward some suggestions on how to strengthen prospecting for manganese ore in the future. First, vigorously looking for rich ore. Find small and rich ore, add up. Note the secondary oxidation of rich ore (such as the ancient weathered crust deposits, fracture intersections and paleokarst deposits, thick secondary oxide ore body core or bottom); primary deposition of rich ore; hydrothermal alteration vein deposits. Second, insist on looking for oxide ore. Look for the silt-muddy formations and eruptions - the manganese oxide deposits in the sediments, the secondary oxidized ore bodies at the intersections of the faults and the craters, and the ancient weathered deposits of the Northern Cenozoic. Third, pay attention to the new ore-bearing layer. Such as Proterozoic, Cretaceous and Tertiary strata in the manganese ore layer. Fourth, the use of facies and paleontology analysis method to find hidden volcano. Fifth, to strengthen the ore prospecting work in the north of our country to overcome the imbalance in the distribution of manganese ore and point out the direction of looking for manganese in the north.