The Discussion and Prospective Analysis of the Ore-searching New Train of Thought for the Xiaolongtan Poyphyry Cu-Mo Deposit in Binchuan
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摘要: 本文结合矿区最新勘查成果,从成矿背景、物质来源、矿化特征等方面揭示了矿区具有较好的成矿地质条件和矿化信息。笔者通过疏理决定矿区找矿方向的关键环节,提出矿区斑岩体的侵入方向与区域 NE向构造-岩浆带一致,主导矿区富碱斑岩带总体呈NE向展布并由NW向SE侵入的认识,进一步调整了找矿思路。并分析展现了矿区具有寻找大型-超大型斑岩铜钼矿床的前景,对区域喜山期富碱斑岩带的地质找矿工作具有一定的启示作用。Abstract: In combination with the newest exploration achievements, this paper deals with the Xiaolongtan poyphyry Cu-Mo ore district in the aspects of ore-forming background, material sources and mineralization characteristics and, on such a basis, points out that there exist fairly favorable geological conditions and mineralization information in the ore district. Based on organizing various kinds of metallogenic information, the authors determined the key link for ore-prospecting work in the ore district, and pointed out that there exists the consistency between the invading direction of the porphyry body in the ore district and the NE-trending tectonic-magmatic belt, and that the major alkali-rich porphyry belt in the ore district assumes NE-trending distribution and invaded from northwest to southeast, thus readjusting the train of thought for ore-prospecting. The authors also indicate through analysis that there exists the possibility of finding large-superlarge porphyry Cu-Mo deposits in the ore district. The results obtained by the authors play some instructive role in search for mineral deposits in regional Himalayan period alkali-rich porphyry belt.
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