从勘查地球化学到应用地球化学——第21届国际勘查地球化学会议综述

第21届国际勘查地球化学会议于2003年8月29～9月3日在爱尔兰首都都柏林召开,本次会议由于见证勘查地球化学历史转折事件而被载入史册。本次会议的常规化探方法如土壤、水系沉积物测量等成熟方法研究较少,岩石、水化学方法再次受到较大关注;而覆盖区深穿透地球化学方法及其机理成为各国研究热点,代表现代勘查地球化学发展方向;一些特殊方法如矿物、同位素、生物等勘查方法在特殊景观区寻找特殊矿床发挥作用;在分析上,全面进入ICP/MS时代。虽然勘查地球化学工作者经多年努力在环境领域有所进展,但要走的路还有很长。

FROM EXPLORATION GEOCHEMISTRY TO APPLIED GEOCHEMISTRY:A REVIEW OF THE 21TH INTERNATIONAL GEOCHEMICAL EXPLORATION SYMPOSIUM

The 21th International Geochemical Exploration Symposium (21th IGES) was held in Dublin, Ireland from August 28 to September 3, 2003. Over 200 delegates from 27 countries attended the meeting. Fifty-eight papers were orally presented and fifty papers posted at the meeting. In addition to the scientific program, the Annual General Meeting of the AEG (Association of Exploration Geochemists) passed a resolution for the name change from AEG to AAG (Association of Applied Geochemists). While conventional geochemical exploration techniques such as soil and stream sediment surveys have been playing an important role in mineral exploration, lithogeochemistry and hydrogeochemistry remain interesting fields for geochemists. Much attention has been paid to the deep-penetrating technique and its formation mechanism in overburden, which represents the future trend of exploration geochemistry in the world. Indicator minerals, isotopes and biogeochemical methods are being studied for specific mineral deposits in special landscapes. ICP/MS has become conventional procedures for the analysis of elements and isotopes in geochemical samples. Although the number of papers on environmental geochemistry was increased, most of them were related to the environmental geochemistry of mines or mineral deposits. Thus, to get fully involved in the environmental field, we geochemists still have a long way to go.