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Thus, the object of study for prospecting and evaluation work is the area of the alleged deposit, and this stage is the transition from exploration to exploration. The main purpose of work - assessment of the possible commercial value of the studied deposits, the manifestations of rejection, not of interest to industry, and the choice of sites for the preliminary investigation.
During the work, this stage is studied in detail the surface and subsurface of the ore field by performing geological, geophysical and geochemical surveys. The body of minerals are being studied and thoroughly being tested by trenching, trenches, pits, drilling wells. In extreme terrain using deep wells and underground mining. Rational set of studies is chosen depending on the specific geological structure and landscape-geomorphological features of the structure of prospective area. In the course of prospecting and evaluation work is compiled geological maps, specialized maps and sections of scale 1: 5000 - 1:2000. Must be finally established geological and industrial type of deposit, mapped its approximate contour and given reasonable forecast of the spread of minerals in the deep.
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