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最近10年,PGE地球化学勘查取得许多进展,在此对主要进展作一简短的评述。①通过对已知其它金属矿床的再认识和再评价,发现新类型PGE矿床;②通过对已知PGE矿床的地球化学勘查,发现新的找矿靶区;③在空白区通过PGE地球化学填图,发现规模巨大的PGE地球化学省或巨省,为寻找PGE矿床提供了直接的找矿信息。根据中国的具体情况提出了中国PGE地球化学勘查的战略目标是:采用迅速,掌握全局,逐步缩小靶区的找矿战略,力争用5～10a时间使PGE矿床找矿获得重大突破。部署工作应以西南Pt、Pd地球化学省、新-甘-青Pt、Pd地球化学省、雅鲁藏布江Pt、Pd地球化学省为重点地区。根据1:20万化探资料,建议以康滇地轴为首选地区,找寻的PGE矿床类型包括诺里尔斯克型和构造蚀变岩型PGE矿床（新类型）。PGE地球化学勘查的战术是样品测试时除测试Pt、Pd外,还要分析Au、Cu、Ag、Ni、As、Sb、Bi、Cd、Hg、F、S、Pb、Zn等元素。进行异常评价中如发现Pt、Pd、Cu、As、Cd元素和Pt、Pd、Cu、As、Cd、Pb、Zn元素组合异常时要引起特别重视,这往往是PGE矿化的特征标志。
In the last 10 years, there have been many advances in PGE geochemical exploration and a brief review of major developments is made here. (1) The discovery of new types of PGE deposits through the re-recognition and re-evaluation of other known metallogenic deposits; (2) The discovery of new prospecting targets through geochemical exploration of known PGE deposits; (3) The large PGE geochemical province or giant province found in the map provided direct prospecting information for finding PGE deposits. According to China’s specific conditions, the strategic goal of PGE geochemical prospecting in China is to adopt a strategy of speeding up, mastering the overall situation and gradually narrowing the ore prospecting strategy of the target area, striving to make a major breakthrough in prospecting for the PGE deposit in 5 to 10 years. The deployment work should be focused on Pt, Pd Geochemistry Province of Southwest China, Xin-Gan-Qing Pt, Pd Geochemical Province, Pt, Pd Geochemical Province of the Brahmaputra. Based on the 1: 200,000 geochemical data, it is suggested that the PGE deposits to be searched include the Norilsk-type and tectonic alteration-type PGE deposits (new types), with the Kang-Dian axis preferred. The PGE geochemical exploration tactic is to analyze elements such as Au, Cu, Ag, Ni, As, Sb, Bi, Cd, Hg, F, S, Pb and Zn in addition to Pt and Pd during the sample test. Special attention should be paid to the abnormal combination of Pt, Pd, Cu, As, Cd and Pt, Pd, Cu, As, Cd, Pb and Zn elements in the anomaly evaluation, which is often the hallmark of PGE mineralization.