摘要
通过在甘肃礼岷五大岩体一带进行的地球化学勘查工作,取得了金矿成矿的控矿因素,中元古界地层与金矿关系密切,以中泥盆统的浊积岩系为主要的矿源层。利用已知矿床的原生晕和元素的分带性确定了成矿的地球化学特征,提出叠加型异常是该区找矿的重要靶区。并结合对印支-燕山期侵入体的化探特征研究,确定了8个成矿远景区。据此,认为礼岷五大岩体内外接触带具有极好的找矿前景。
The paper introduced the geochemical prospects to five granitic bodies near Li-Min county in Gansu province. It was found that gold mine was related closely with Mesoproterozoic strata and middle Devonian turbidite series was the main source bed. The ore-forming geochemical characteristics were confirmed according to the primary halos and elements zoning of known deposits. The imposed anomaly was the important prospecting targets in the area. By the studies to its geochemical characteristics of the intrusions in Indosinian-Yanshanian epoch, eight perspective districts were found and it was concluded that there was huge prospect potential in inner-outer contact belts of five granitic bodies.
出处
《甘肃冶金》
2005年第3期43-46,共4页
Gansu Metallurgy
关键词
五大岩体
地球化学勘查
找矿预测
five granitic bodies
geochemical prospect
ore-prospecting prognosis
