publication . Article . 2011

Geochemistry of hydrothermal alterations associated with epithermal gold mineralization in Masjeddaghi area, east of Jolfa, NW Iran

Ali Imamalipour; Hossein Abdeli Eslamlo; Behzad Haj Alilou;
Open Access Persian
  • Published: 01 Jan 2011 Journal: Journal of Economic Geology (issn: 2008-7306, Copyright policy)
  • Publisher: Ferdowsi University of Mashhad
Two types of mineralization including porphyry copper and epithermal gold mineralization have occurred in relation with an intermediate volcano-plutonic complex in Masjeddaghi area. Different alterations including silica, advanced argillic, intermediate argillic and propylitic have been distinguished in relation with epithermal mineralization, which have a zonal pattern. Elemental mass gains and losses during alterations were calculated using Zr as an immobile monitor. Silica zone has enriched in SiO2 and relatively in Al2O3 and K2O, and has depleted in Na2O, MgO and CaO. Ba, Sr, Pb, Rb and Cu elements have also enriched. The advanced argillic zone shows enrichm...
free text keywords: Geochemistry, Alteration, Epithermal, Mass changes, Masjeddaghi, Jolfa, Geology, QE1-996.5
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