地气测量寻找深部隐伏金矿及其机理研究

根据９个地区４种不同的金和金多金属矿区地气研究、室内上升气流和纯扩散模拟模型实验以及地气采样片在高分辨显微技术（ＡＦＭ，ＴＥＭ，ＳＥＭ）下观察的结果，讨论了地气测量的找矿机理，认为地壳内上升气流携带深部矿化元素的纳米级微粒垂直向上迁移至地表，形成地气异常．文中对地气法的方法技术做了概述和评论，并列举了应用实例，地气法兼有物、化探的优点，在寻找深部隐伏矿化方面具有广阔的应用前景。

CEOGAS PROSPECTING AND ITS MECHANISM IN THE SEARCH FOR DEEP-SEATED OR CONCEALED GOLD DEPOSITS

On the basis of in situ geogas study in 9 Au mineralizations of 4 types, indoorsimulation tests for ascending gas flow and diffusion, and observation of the geogascollectors under high-resolution microscopy, a mechanism of geogas prospecting and its development potential are discussed, and application cases are preasented. It is believed that ascending gas flows in the crust, can transport the deep metallogenetic elements in the form of nano-scale particles upward and from a geogas anomaly on the direct surface of the concealed ore. The geogas prospecting has the advantages of both geogas and geochemical prospecting. The technique and several applicationsof geogas prospecting are described and reviewed in the paper.