西秦岭岷礼成矿带地球化学特征及其地质意义

来源 :黄金科学技术 | 被引量 : 0次 | 上传用户：zltxgl

【摘要】

：

通过对西秦岭岷礼成矿带化探数据中Au、Cu、Pb、Zn、W和Sn进行分形模型研究,发现Au和Sn具有多层次的地球化学场,指示该区Au和Sn具有更高的富集程度和成矿潜力。通过因子分析法得到的第一主因子(F1)的元素组合为Co-Cr-Cu-Ni-Ti-V-Zn,代表了晚古生代地层,其得分分布与区域铜、金矿化套合较好,表明矿化可能来自于该套地层。代表铅—锌、钨—锡矿化的因子(F2~F4)得分与晚三叠纪侵入岩体一致,表明该系列矿化与岩浆作用相关。F5因子只含有Au元素,表明金矿化更可能受区域复杂褶皱断裂系统的控制

【作者】

：

马承宋伊圩孙彪王占彬

【机构】

：

中国地质调查局西安矿产资源调查中心

【出处】

：

黄金科学技术

【发表日期】

：

2021年4期

【关键词】

：

分形模型因子分析地球化学特征矿化类型成矿潜力岷礼成矿带

【基金项目】

：

中国地质调查局项目“甘肃寨上金矿岩金普查”(编号:DD20191018)资助。

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西秦岭岷礼成矿带地球化学特征及其地质意义

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