兰州—白银多目标地球化学调查野外工作方法浅析

多目标区域地球化学调查从调查区表层、深层采样土壤元素分布特征入手建立土壤元素地球化学分配机制，以景观、地貌及地质特征为基础，选择合理的采样位置，正确的采样方法、采样层位，应用掌上机（Pocket PC）及数字填图系统（Rgmap）采集野外样品，本文以兰州—白银黄土覆盖区景观区为例，对表层、深层采样方法和技术要求进行探讨，对全省开展多目标地球化学调查，特别是野外工作方法提供借鉴。

FIELD TECNIQUES FOR MULTI- TARGET AND REGIONAL GEOCHEMICAL SURVEY FROM LANZHOU TO BAIYIN CITY

Based on distribution characteristics of geochemical elements in the surface-level and deep-level soil of the surveyed area for multi-target and regional geochemical survey from Lanzhou to Baiyin City we will establish the distributed mechanisms of soil-geochemical elements,and according to the regional landscapes,geomorphes and geological characteristics,by choosing the proper sampling location and the right sampling method and horizon,applying pocket-size computer(Pocket PC)and the digital geological mapping system(Rgmap system) to field sampling,being into geochemical analysis and then sorting out the data we will also supply the society with the basic and applied information.