Kaolin deposits Mineralogical, geochemical and isotopic properties - Zirjanizadeh, Sedigheh
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Hydrothermal alteration processes form clay minerals. Argillic alteration constitute exploration objectives for epithermal and porphyry-type deposits. Argillic alteration exhibits lateral and down zonation that can be divided into mineral assemblages. These assemblages were as follows: silicified zone (silica cap), quartz+ kaolin minerals + alunite zone and K-feldspar + illite + montmorillonite zone.On the basis of geochemical and mineralogical characteristics, the hydrothermal fluids that formed the kaolin deposits were acidic.

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Produktbeschreibung
Hydrothermal alteration processes form clay minerals. Argillic alteration constitute exploration objectives for epithermal and porphyry-type deposits. Argillic alteration exhibits lateral and down zonation that can be divided into mineral assemblages. These assemblages were as follows: silicified zone (silica cap), quartz+ kaolin minerals + alunite zone and K-feldspar + illite + montmorillonite zone.On the basis of geochemical and mineralogical characteristics, the hydrothermal fluids that formed the kaolin deposits were acidic.
Autorenporträt
ACADEMIC STAFF: ASSISTANT PROFESSOR AT UNIVERSITY OF GONABAD, FACULTY OF SCIENCE, GEOLOGY DEPARTMENT, IRAN. EDUCATION: B.S. degree: Geology, University of Sistan & Baluchestan, 2001. M.S. degree: Economic Geology, Ferdowsi University of Mashhad, 2008. Ph.D. degree, Economic Geology, Ferdowsi University of Mashhad, 2015.