Because of the special geomorphology in areas of shallow overburden, it is difficult to delimit the boundary between mapping units in regional geological mapping.

由于浅覆盖区的特殊地貌，给区域地质填图带来一定的困难。

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Alteration fluid mapping is an investigation of the regional fluid geology, and also is an integrated basic geological research that has strategic importance.

蚀变流体填图是一项区域流体地质调查研究工作，也是一项具有战略意义的、综合性的基础地质研究工作。

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Digital geological mapping obtains regional geological survey data in the field and re-shows its production in digital regularity.

数字地质填图是指区域地质调查数据的野外获取及其成果的数字化统一性再现。

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