Heat and temperature in ore deposition

"Suggests that temperature zoning and paragenesis reflect the thermal stability ranges of minerals in the solid state, not their relative solubilities in aqueous solutions. The various components of the sulphide facies obey laws similar to those governing the metamorphic facies. Favorable beds and favorable structures depend on susceptibility to thermal activation for replacement, not on porosity or permeability. Reaction and movement of elements in the earth's crust are responses, principally, to heat, temperature, pressure and chemical gradients. Ore formation is an aspect of these reactions and movements."

This record provided courtesy of AGI/GeoRef.