Secondary deposits form later during the chemical and mechanical processes of weathering and erosion, and the physical reconcentration of gold-bearing sediment into placer deposits.
(Secondary deposits; form; T:later; T:during the chemical and mechanical processes of weathering and erosion, and the physical reconcentration of gold-bearing sediment into placer deposits)
Secondary deposits
form
T:later T:during the chemical and mechanical processes of weathering and erosion, and the physical reconcentration of gold-bearing sediment into placer deposits