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十多年来,在秦岭泥盆系北带已找到了一批大中小型金矿床,属产于沉积岩中的中(低)温—中低温热液矿床,构成著名的金成矿带。矿带中间的金矿床成矿温度较两侧的高,与铅锌矿床的分布表现出同带异位的特征。金矿产于华北、扬子两大板块之间的长期活动带中,受富金岩性层位、两大板块拼接带、同生断裂带、以及印支—燕山期岩浆热事件的控制。提出了大型、超大型沉积岩型金矿床的6条判别准则,全面分析了秦岭泥盆系北带大型、超大型金矿的产出条件,指出可能找到大型、超大型金矿的靶区
For more than a decade, a number of large, medium and large gold deposits have been found in the Devonian north belt of the Qinling Mountains, belonging to the moderate (low) warm-medium and low-temperature hydrothermal deposits in sedimentary rocks and constitute the famous gold metallogenic belt. The mineralization temperature of the gold deposit in the middle of the ore belt is higher than that on both sides, and the distribution of the lead-zinc deposit shows the same orogenic feature. Gold deposits are produced in the long-term activity belt between the two major plates in North China and Yangtze. They are controlled by the gold-bearing lithofacies, the two major plate splicing zones, the Tongsheng fault zone, and the Indo-Yanshanian magmatic thermal event. This paper presents six criteria for the determination of gold deposits in large and super-large sedimentary-type gold deposits, comprehensively analyzes the output conditions of the large-scale and super-large gold deposits in the Devonian north belt, points out that it is possible to find target areas for large-scale and super-large gold deposits