固体矿产地球化学勘查进展与成果

THE ADVANCES IN GEOCHEMICAL EXPLORATION OF SOLID ORE RESOURCES AND THE ACHIEVEMENTS GAINED

为庆祝第三十届国际地质大会在北京召开，让世界各国地质同行们了解中国地矿部门固体矿产地球化学勘查工作的进展，本文主要介绍我国地球化学勘查的成果。近十五年来已完成区域化探覆盖面积５１７万ｋｍ２，中比例尺化探普查面积约９０万ｋｍ２，发现各类化探异常约４．３万处，通过检查化探异常和工程验证发现具工业价值的大、中、小型矿床５６９处，找矿效果非常显著，特别是化探找金、银矿方面取得突破性成果，化探方法技术不断提高和广泛推广。特殊景观区的野外工作方法、化探样品微量、痕量元素测试方法技术、化探异常的查证方法及化探数据处理与成图等方面均接近或达到国际水平。回顾过去，地球化学勘查进展迅速，成果丰硕，技术水平不断提高。展望未来，地球化学勘查目标明确，任务繁重，地质找矿潜力巨大。

in celebration of the 30th International Geological Congress to be held in Beijing,this paper aims atmaking known to our foreign colleagues the advances and achievements of geochemical exploration for solid ore resources in China: regional geochemical prospecting and medium-scale geochemical prospecting have covered5170000 km￣2 and some 900000 km￣2 rmpectively, about 43000 geochemical anomalies of various sorts have been discovered and, on such a basis, 569 large-, medium-, and small-sized ore deposits with economic value havebeen found through anomaly appraisal and engineering inspection. The ore-prospecting effects are quite remarkableand, especially in geochemical prospecting of gold and silver deceits, achievements with breakthrough significancehave been obtained. Geochemical methods and techniques have been continuously improved and spread. China'sgeochemical prospecting has approached or reached international advanced level in several aspects such as field workmethods for special landscape areas, analytical methods and techniques for minor and trace elements, inspectionmethods for geochemical anomalies as well as processing and mapping of geochemical data.