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Epidosite

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Subject: Metamorphic rocks, Unakite, Epidote, Lizard complex, Ophiolite
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Epidosite

Sample of Epidosite

Epidosite is a highly altered epidote and quartz bearing rock.[1] 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.[1][2] 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.[1][2]

References

  1. ^ a b c Geology, February, 2000 v. 28, no. 2, p. 151-154Discovery of epidosites in a modern oceanic setting, the Tonga forearc,Banerjee, Neil R., et. al.,
  2. ^ a b 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


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