METHOD OF GEOCHEMICAL SURVEY USING GEOCHEMICAL INDICATOR GRADIENT Russian patent published in 2015 - IPC G01N1/00 G01V9/00 

FIELD: measurement equipment.

SUBSTANCE: invention relates to a method for acquisition and processing of geochemical survey data, which represents a gradient method of geochemical survey. The method involves acquisition at each sampling point of a set of samples by alternating sampling of soil samples and gas samples at the interval of 0.5-1 m downwards from ground surface. Then, analysis of soil and gas samples for their geochemical indicator or indicators is performed, and charts of geochemical indicator(s) and charts of its gradient depending on depth are built as per analysis results for each sampling point. Formation of profiles of geochemical indicator(s) and profiles of its gradient is performed for each depth; with that, the profile is built along the survey line. As per the obtained charts, isolines of geochemical indicator(s) and isolines of its gradient for the profile are built, as per which three-dimensional viewing diagram of the collected data of the area is formed. After that, determination as per characteristics of variations of geochemical indicator(s) is performed depending on depth and abnormalities of its gradients in the three-dimensional viewing diagram of the area rich in metal ores or deposits.

EFFECT: acquisition of large amount of information, namely information on longitudinal variations, other than common geochemical survey.

5 cl, 5 dwg