PROCESS OF GEOCHEMICAL SEARCH FOR GOLD MINERALIZATION IN CARBON-CARRYING THICKNESSES Russian patent published in 1998 - IPC

FIELD: geochemical prospecting. SUBSTANCE: in agreement with process samples are taken and ground and fractions are sampled. Thermal gas chromatographic analysis of sample from minimal depth is conducted in advance in temperature interval 30-530 C with obtainment of discrete data after each 10 C. Optimal degassing temperature at which mass analysis of samples is conducted by method of thermal gas chromatography is determined by dependence found experimentally beforehand, background and anomalous values are determined by all gas components, intervals of paleotemperatures are isolated by combination of anomalous values of various components by experimental data obtained in good time. Gold mineralization is found by presence of anomalous values of H₂S and hydrocarbons from methane to hexane within temperature interval 220-460 C. EFFECT: improved authenticity of process. 1 dwg