Testing is conducted polygon method, which is characterized by a fairly even distribution of samples in the study area. A systematic sampling of the entire drainage network: the valleys of major rivers of high order and all their tributaries extending up to 0.5 km (down to the lowest-order streams), and dry gullies and ravines network. If the tributary alluvial fans of small extent discovered minerals, these tributaries are also being tested.
Density test at schlich search this stage is determined by geological features of the area, its topography, the degree of water content, as well as the properties of mineral concentrates. Typically, the samples in the search for scale 1:50000 are selected at a distance of 500 m in the river valley, which is two to three samples of 1 km at 1:25000 scale studies, this value decreases to 250 m, i.e., four or five samples .
When schlich prospecting, ore minerals which are unstable, the distance between the points of taking 12 samples schlich reduced; for sustainable primary ore minerals may be increased. Testing is thickened in areas with favorable geological point of view for ore formation - in the exo - the contact parts of the intrusive massifs and areas of particular horizons lithology (permeable, porous), the fields of development of vein structures and the collapse of quartz, hydrothermal metasomatic rocks in the tectonic intensively recycled parts and so on. The main object of sampling are schlich river bed facies. In cases where enough dissected relief schlich samples were taken at the river braids in rivers, on flood plain terraces in the sides, that is, from the natural outputs of loose rocks. At low rugged terrain and bad nudity testing the upper horizons of fluvial facies does not give reliable results, so the sample is obtained from the deeper parts of the valley sediments, using for this purpose, snail, or small pits. In cases of positive test results schlich alluvium being tested talus deposits covering the slopes of river valleys, and eluvial watershed education spaces.