Studies show that surface sediments of the flood land seem to be the best sampling media in ultra-low density geochemical investigation in forest-swamp areas.

研究成果表明，河漫滩表层沉积物是森林超低密度地球化学调查的最佳采样介质。

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This method is rapid, cheap, effective and non-pollution and is a new technology of surface geochemical exploration.

该方法有快速、廉价、有效、无污染等特点，是地表地球化学勘探的一种新方法。

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This makes geochemical prospecting turn from the study of seeping "trace" and halo anomalies of hydrocarbons in near surface to a direct research and prediction of the target distribution.

使油气化探工作从近地表研究油气渗逸“痕迹”和晕圈异常进而预测目的层在平面上的位置转向直接对目的层进行研究和预测。

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