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epidosite
Epidosite is a highly altered epidote and quartz bearing rock.〔(Banerjee, Neil R., et. al., ''Discovery of epidosites in a modern oceanic setting, the Tonga forearc,'' Geology, February, 2000 v. 28, no. 2, p. 151-154 )〕 It is the result of slow hydrothermal alteration or metasomatism of the basaltic sheeted dike complex and associated plagiogranites that occurs below the massive sulfide ore deposits which occur in ophiolites.〔〔Lori Bettison-Varga, Robert J. Varga and Peter Schiffman, ''Relation between ore-forming hydrothermal systems and extensional deformation in the Solea graben spreading center, Troodos ophiolite, Cyprus,'' Geology, 1992, v. 20 no. 11 p. 987-990〕 Epidosites represent the zone of intense metal leaching below and lateral to the sulfide deposits which is the result of convection of heated ocean water through the fractured basalts of the sheeted dikes.〔〔
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