On the ore distribution in placers at low order streams in dependence on channel type

Abstract

The paper deals with features of placers in connection with the type of stream channel where they were formed. Some correlation has been established between metallic grain size and stream order and maturity of channel forms. The distribution of metal .grains in the vertical section is studied. The grains weight is proved to be related to the stream morphometry. The results reveal the significance of the channel process and hydrodynamic conditions for placers formation and vertical and horizontal ore dispersion in a placer.