#geological process

• Actualism — A geological and philosophical theory stating that the physical, chemical, and biological laws governing the Earth today have operated in the same manner and with the same intensity throughout all past geological epochs. In a philosophical sense, it represents a doctrine that reduces reality exclusively to what is actual, present, or in full development, denying the existence of purely potential forms.
• Alunitization — A geological process of acid hydrothermal alteration of volcanic or magmatic rocks rich in feldspars, under the action of ascending solutions charged with sulfuric acid; the act of transforming into alunite. This structural phenomenon leads to the replacement of primary minerals with alunite, quartz, and kaolinite, constituting a valuable indicator in geological prospecting for metalliferous deposits.
• Argillize — To transform or become transformed into clay through chemical and hydrothermal alteration processes of preexisting minerals (especially feldspars) under the action of atmospheric agents or endogenous solutions. This mineralogical phenomenon alters the original structure of the silicate rock, leading to the accumulation of clay minerals and a decrease in the mechanical cohesion of the rock massif.