Determination of Mineral Reserves

The mineral reserves in the placer deposits are generally classified in: economical canal, explored canal and prospective canal.

The methods of calculus are used for the cubication of mineral reserves can be: graphic methods, within these the method of sectors by area of influence, method of blocking by triangles and by polygons. And the statistic methods.

Exploitation of Alluvial Gold Deposits

Factors for the election of methods of exploitation
One of the preponderant factors in the selection of the methods of mining in this type of deposits is, without a doubt, the presence or absence of the element called water.

In the deposits submerged before the presence of excessive water (in the low terraces), in the abandoned lakes and in the same bed of rivers, the system of exploitation to be chosen will be dredged in whichever of its varieties. And its areas where there is an adequate amount of water all the methods are feasible.