Epidosite
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Epidosite is a highly altered epidote and quartz bearing rock. It is the result of slow hydrothermal alteration or metasomatism of the basaltic sheeted dike complex and associated plagiogranites that
Sample of Epidosite
Trondhjemite
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Trondhjemites are leucotonalites, a variety of leucocratic tonalite in which the modal mineralogy mostly consists of plagioclase in the form of albite to andesine, >20% quartz, and <10% alkali feldspa
Epidosite
…epidote and quartz bearing rock. 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. Most epidosites represent the zone of intense metal leaching below and…
Tonalite-trondhjemite-granodiorite migmatite (left) and trondhjemitic gneiss (right) from northern China