Citizendia
Your Ad Here

In ore deposit geology, supergene processes or enrichment occur relatively near the surface. An ore is a volume of rock containing components or Minerals in a mode of occurrence that renders it valuable for mining Geology (from Greek γη gê, "earth" and λόγος Logos, "speech" lit Supergene processes include the predominance of meteoric water circulation with concomitant oxidation and chemical weathering. Meteoric water is a Hydrologic term of long standing for water in the ground which originates from precipitation. Redox (shorthand for reduction-oxidation reaction describes all Chemical reactions in which atoms have their Oxidation number ( Oxidation state Weathering is the decomposition of earth rocks, Soils and their Minerals through direct contact with the planet's Atmosphere. The descending meteoric waters oxidize the primary (hypogene) sulfide ore minerals and redistribute the metallic ore elements. Redox (shorthand for reduction-oxidation reaction describes all Chemical reactions in which atoms have their Oxidation number ( Oxidation state The term sulfide ( sulphide in British English) refers to several types of Chemical compounds containing Sulfur in its lowest Oxidation Supergene enrichment occurs at the base of the oxidized portion of an ore deposit at which point the metals are redeposited on hypogene sulfides creating a zone of increased ore content. This is particularly noted in copper ore deposits where the copper sulfide minerals chalcocite, covellite, digenite and djurleite are deposited by the descending surface waters. Copper (ˈkɒpɚ is a Chemical element with the symbol Cu (cuprum and Atomic number 29 Chalcocite, copper(I sulfide (Cu2S is an important Copper Ore mineral Covellite (also known as covelline is a rare Copper sulfide mineral with the formula CuS Digenite is a Copper Sulfide mineral with formula Cu9S5 Digenite is a black to dark blue opaque mineral that crystallizes with a trigonal Djurleite is a Copper Sulfide mineral with formula Cu31S16 It is an opaque lead grey to black mineral which crystallizes with Monoclinic

See also

Hypogene

References


© 2009 citizendia.org; parts available under the terms of GNU Free Documentation License, from http://en.wikipedia.org
 Dapyx Software network: MP3 Explorer | Ebook Manager | Zenithic