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Process of mineral alteration
Sericitic alteration or sericitization is a type of hydrothermal alteration characterized by the development of fine-grained white mica assemblages collectively
Sericitic_alteration
tourmaline, enargite and tennantite may also occur. Greisen alteration is similar. Sericitic alteration Guilbert, John M. and C. F. Park, Jr., The Geology of
Argillic_alteration
Geological process
Plagioclase will be altered to sericite (a fine-grained white mica) by sericitic alteration, and mafic minerals are replaced by quartz. Tourmaline may appear
Phyllic_alteration
Aggregates of micas
the alteration of orthoclase or plagioclase feldspars in areas that have been subjected to hydrothermal alteration (also see Sericitic alteration) typically
Sericite
Subclass of granite formed from igneous protoliths
atmosphere. Alteration of biotites can produce fluorite, chlorite, and iron oxides such as magnetite and ilmenite. Sericitic alteration is seen within
I-type_granite
Oceanic basin located to the east of the island of New Guinea
processes, silicification, chloritization, formation of illite, sericitic alteration, replacement of plagioclase by albite, and sulfidation associated
Woodlark_Basin
Type of volcanic rock containing large porphyritic crystals of quartz
this way they become schistose, and from their feldspar minute plates of sericitic white mica are developed, giving the rock in some cases very much of the
Quartz-porphyry
Place in Maidan Wardak and Bamyan, Afghanistan
500 m (14,800 ft) thick. The Kab Formation consists of dark grey sandy sericitic schists, interpreted as metamorphosed terrigenous rocks, acid volcanic
Hajigak_mining_concession
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