Mineralogy and Geochemistry of Diorites and Quartz Diorites of the Bolshoi Karan Gold–Porphyry Deposit in the Southern Urals

This paper provides information on the chemical composition of intrusive diorites the gold–porphyry deposit of Bolshoi Karan, located in the northern part of the Voznesensk–Prisakmar structural zone (Main Ural Fault), in the north of the Uchaly ore district. Additional information is given on 1) pri...

Full description

Saved in:
Bibliographic Details
Published in:Geology of ore deposits 2022-12, Vol.64 (Suppl 2), p.S223-S236
Main Authors: Kosarev, A. M., Shafigullina, G. T., Kholodnov, V. V.
Format: Article
Language:English
Subjects:
Chemical composition
Earth and Environmental Science
Earth Sciences
Geochemistry
Gold
Island arcs
Mineral Resources
Mineralogy
Minerals
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper provides information on the chemical composition of intrusive diorites the gold–porphyry deposit of Bolshoi Karan, located in the northern part of the Voznesensk–Prisakmar structural zone (Main Ural Fault), in the north of the Uchaly ore district. Additional information is given on 1) primary magmatic, 2) accessory, 3) hydrothermal—metasomatic, and 4) ore minerals. Special attention is paid to the geochemical features of accessory minerals from the ore-bearing zone diorites. According to the Nb/Yb and Th/Yb ratios in gabbroids, taking into account other materials, geodynamic reconstructions were carried out, as a result of which groups were identified of gabbrodiorites formed in the Voznesensk–Prisakmar zone in areas with oceanic, island-arc, and subcontinental types of crust smelted from depleted and enriched mantle sources. The Bolshekaran–Voznesensk–Karagaikul ore-bearing zone is confined to an area with a thick crust of island-arc or subcontinental type.
ISSN:1075-7015
1555-6476
DOI:10.1134/S107570152210004X