阿勒泰地区砂金矿床综合信息找矿模型

The oreprospecting model of synthetic information of placer gold deposits in Altay Region,Xinjiang

阿勒泰地区砂金矿床丰富，主要为冲积型、冲洪积型，应用多级汇水盆地网系图推断砂金矿化向源汇水盆地分布范围，发现砂金的补给来源主要是前寒武纪出露基底和隐伏基底，砂金和岩金的空间分布有相依关系。Ａｕ、Ｃｕ、Ｐｂ等多元素组合异常，为有利的富集场所，是砂金矿的靶区。

Altay Region abounds with placer gold which mainly belongs to alluvial type and alluvialdilluvial type.The distributive scope of confluence basins of placer gold mineralization is deduced from multistep confluence basin network chart.It is found that the supply of placer gold is mainly from the exposed and concealed basements of early cambrian period and the spatial distribution of placer gold and lode gold are closely related and mutually dependant .The combination anomaly of Au,Cu,Pb,etc. is the favorable concentration place and target of placer gold.