Elluvial Gold Colluvial Newmillenniumfoundationorg

ColluviumwikipediaColluviumIsAGeneralNameForLooseUnconsolidatedSedimentsThatHaveBeenDepositedAtTheBaseOfHillslopesByEitherRainwash

Source/sumber : http://newmillenniumfoundation.org/2015_28/23932_elluvial-gold-colluvial