广西龙圩区泥冲钨多金属矿床地质特征及找矿前景分析

Geological Characteristics and Prospecting Potential Analysis for a Tungsten Polymetallic Deposit

广西龙圩区泥冲矿区位于钦杭成矿带大瑶山多金属矿集区,区域性博白—梧州深断裂和苍梧—大黎隐伏基底断裂交汇处,近期钨多金属矿勘查取得新的突破。本文从区域成矿地质背景、矿区围岩岩性组合特征、构造断裂的控岩及控矿特点、燕山早期泥冲花岗斑岩体的地球化学特征及其侵入与成矿的专属性、矿体产出及分布规律等矿床地质特方面进行总结,认为泥冲岩体是成物质及成矿热液的主要来源,岩体接触带是成矿有利部位,成分比较复杂的夕卡岩更有利于钨金铜矿富集,矿区外围仍有提升资源量的空间和潜力。该研究对大瑶山地区钨多金属矿的找矿工作具有一定的指导意义。

New breakthroughs have been made in the Nincong ore deposit, which was located in Dayao polymetallic ore concentration area. This paper concludes that the mud-rock mass is the main source of matter and metallogenic hydrothermal fluids on the basis of regional metallogenic geological background, lithologic assemblage characteristics of the surrounding rock, controlling rock and ore -controlling characteristics of tectonic fracture, geochemical characteristics of Yanshan early granite granite porphyry and ore body production and distribution. The contact zone of the rock mass is the favorable part of mineralization. The complicated component of skarn is more conducive to enrich tungsten copper. There is still space and potential for upgrading resources in the mining area. The conclusion has certain guiding significance in the tungsten polymetallic ore prospection.