甘肃省礼县崖湾金矿床地球化学异常特征

崖湾金矿位于秦岭活动带礼县-柞水被动陆缘带中段。区域构造主要为礼县-山阳深断裂及其分支断裂和石家河坝复式向斜。本文依据金矿区土壤、岩石测量数据，分别对岩性、含矿地段进行微量元素分布富集特征分析，矿床土壤中Au与Ag、Cu、Pb、As、Sb、Hg呈正相关关系；岩石中与Ag、As、Bi、Cu、Zn呈正相关关系。通过矿体不同标高探矿工程采样分析，初步总结出矿床原生晕的垂直分带序列Hg—Mo—Pb—Ag—Sb—Au—As—Zn—Cu—Bi，地球化学异常显示该矿区存在找金潜力。

STUDY ON GEOCHEMICAL ANOMALY MODE OF AIWAN GOLD DEPOSIT, LIXIAN COUNTY OF GANSU PROVINCE

Aiwan gold deposit is located in the middle part of Lintan-Lixian-Zhashui geosynline zone. The primary regional mega-structures is that one is the deep fracture of Lixian-baiyun-shanyang and it＇s subfracture, the other is the double-entry syncline of shijiaheba. The author respective analysed the associated element of stratum, lithology and the zone of mine in it by the survey data of water system sediment, soil, rock, and ascertained the correlation of aurum and the element else, it reflect that is positive correlation of the aurum and As, Sb, Bi in the water system;and that is positive correlation of the aurum and Ag, As, Bi, Cu, Zn in soil. so the author established the uprightness taxis of barbarism halo of the deposit, it is Hg-Mo-Pb-Ag-Sb-Au-As- Zn-Cu-Bi, resemble with the other deposit, and established the geochemical anomaly mode of Aiwan gold deposit by these charaterstic.and based on it, the author deemed that the ore body show up a part of it, the deepness of denudation is not too, the invisibility ore body lie fallowing in the deeper, and the area has potential for searching the gold.