国外金矿地质与勘探

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美国卡林金矿是在新的地质理论指导下,采用较先进的化探手段,才成功地探测到这一特大型金矿的。从而促进和推动了金矿成矿机理的研究,扩大了找矿范围,确定含矿围岩的时代可从早寒武世到晚白垩世;围岩岩性不限于已知的碳酸盐岩和粉砂岩类,还包括硅质岩和凝灰岩;认识到主要是岩性控矿;多孔、裂隙发育的薄层状岩石都有含矿的可能性。提出这类矿的成矿模式为:1、高角度断裂为雨水下渗与热液上升的主要通道;2、雨水下降受 Carlin Gold Mine in the United States is under the guidance of the new geological theory, the use of more advanced means of geochemical exploration before it successfully detected this very large gold mine. Thus promoting and promoting the research of gold mineralization mechanism, expanding the prospecting range, confirming the age of ore-bearing rock from Early Cambrian to Late Cretaceous. The lithology of surrounding rock is not limited to the known carbonate rock And siltstones, including cherts and tuffs; recognizing that they are mainly lithology-controlled; and that thin, porous, fractured thin-bedded rocks have the potential for ore-bearing. It is proposed that the metallogenic model of this kind of ore is as follows: 1, the high angle fault is the main channel for rainwater infiltration and hydrothermal rise; 2,
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