热田地球化学测量方法及其远景评价

本文讨论了在大面积普查地热时土壤地球化学测量、岩石地球化学测量和水系沉积物地球化学测量的效果,并作了对比研究.指出土壤地球化学测量和水系沉积物测量为最优,岩石地球化学的效果也可以,指示元素为Hg、As、Sb.本文从勘查地球化学角度讨论了热海热田的远景,指出热田规模大、温度高,远景可观,为该热田的开发利用指出了前景.

GEOCHEMICAL TECHNIQUES FOR GEOTHERMAL FIELD SURVEY AND ASSESSMENT OF POTENTIALITY

The effects of such geochemical methods as soil survey, rock survey and stream sediment survey in large-area geothermal prospecting are dealt with and compared in this paper. It is demonstrated that geochemical soil survey and stream sediment survey yield the best results, while geuchemical rock survey also gives pretty good effect. The indicator elements consist of Hg, As, Sb. A dis cussion is made on the potentiality of the Rehai geothermal field in the light of exploration geochemistry, indicating that as this geothermal field is charac terized by large size, high temperature and considerable reserves, there exists bright prospect for its exploitation and utilization.