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应用地质、地球化学技术方法对加拿大科迪勒拉山脉南部的广泛研究表明，区域上可进行特殊的古水文地质填图。由于在加拿大科迪勒拉及其它地区的研究工作显示出许多类型的矿体是由区域规模水体流动产生的，所以用反映古水文地质信息的区域性图件来确定这些地区的矿体已成为可能，这些地区可能存在特殊的矿床类型。这种概念应用到勘查中的证据是由加拿大科迪勒拉南部中温热液金矿床的一个实例所证实的。在３０万ｋｍ２的研究区中，有近７５％的地区由于缺乏能够适合于形成中温热液金矿床的古水文地质条件的地质、地球化学标志而从靶区中排除出去。因而可以把勘查靶区集中在大量比较小但更有希望的地区。
Extensive studies using geo-geochemical techniques on the southern Cordillera Mountains in Canada have shown that special paleo-hydrological geo-mapping can be carried out in the area. Since studies in Cordillera and elsewhere in Canada have shown that many types of ore bodies are produced by the flow of regional-scale bodies of water, regional maps reflecting paleoclimatic geological information have been used to establish that ore bodies in these areas have become Possibly, there may be special deposit types in these areas. Evidence of the application of this concept to exploration is evidenced by an example of a mesothermal hydrothermal gold deposit in southern Cordillera, Canada. Nearly 75% of the 300,000 km2 study area is excluded from the target due to the lack of geologic and geochemical markers that are suitable for the formation of paleo-hydrological geology in mesothermal hydrothermal gold deposits. As a result, exploration targets can be concentrated in a large number of smaller but more promising areas.