Principles of geochemical prospecting. Techniques of prospecting for non-ferrous ore and rare metals / Принципы геохимической разведки. Методы поиска цветных руд и редких металлов

The problem of application of geochemical methods in prospecting for metals has become progressively more urgent in recent years. Credit ought to be given to our geophysicists, who were the first to raise this problem and also the first to undertake its solution.
First trials of geochemical surveys in the petroleum industry of the U.S.S.R. were carried out more than twenty-five years ago. In 1932, gas surveys in the exploration for petroleum were developed and applied for the first time (V. I. Sokolov). In 1935, there appeared in the press reports on stannometric surveys of tin and gold lodes (B. L. Flerov) and on cuprometric surveys (M. F. Zenin). A report on applications of spectrographic analysis in prospecting and reconnaissance for deposits of tin was published in the same year (Í. I. Sofronov and A. P. Solovov).
In 1936, Sofronov published his article on dispersion halos where he stated their classification as well as the physico-chemical premises of the prospecting methods. In the same year, E. A. Sergeev published a paper on spot-plate analysis. In 1937 there appeared the first manual on electrical, magnetic, and physico-chemical investigations prepared by S. D. Miller. In the same year, V. I. Nikolaev proposed the use of geochemical surveys in outlining boundaries of districts, the rock of which is enriched by potassium, bromine, iodine and boron. In 1938, M. F. Zenin published a report on cuprometric surveys <...>