Cobalt mineralization of the South Siberia: types of ores, geochemical characteristics and age

Irina G. Tretiakova, Alexander S. Borisenko, Vladimir I. Lebedev

Research output: Chapter in Book/Conference paperConference paperpeer-review

Abstract

South Siberia is part of the large cobalt-bearing Altay-Sayan province. Three main types of hydrothermal cobalt ores are recognized in this province: Ni-Co-arsenic (Ni-Co-As), Co-suifoarsenic (Co-As), and Cu-Co-sulfoarsenic-sulfosolts (Cu-Co-As). Analysis of the relationships among the different types of hydrothermal cobalt mineralization at deposits of the Attay-Sayan fold area shows that Co-As, Ni-Co-As, and Cu-Co As ores were formed during separate stages. Ore associations are usually separated by intrusions of dikes of dolerite or syenite. Cobalt ore formation in most ore cluster also is a multiple-stage process associated with mafic and granitoid magmatism of different ages. New geochronological data and analysis of the relationships between cobalt mineralization and magmatism in ore clusters of the Altay-Sayan fold area has shown a close spatial and time connection of cobalt mineralization with mafic and granitoid intrusions, as well as with mafic dikes.

Original languageEnglish
Title of host publicationLET'S TALK ORE DEPOSITS, VOLS I AND II
EditorsF Barra, M Reich, E Campos, F Tornos
PublisherEdiciones Universitarias de la Universidad Católica del Norte
Pages133-135
Number of pages3
ISBN (Print)978-956-287-329-1
Publication statusPublished - 2010
Externally publishedYes
Event11th SGA Biennial Meeting on Let's Talk Ore Deposits - Antofagasta, Chile
Duration: 26 Sept 201129 Sept 2011

Conference

Conference11th SGA Biennial Meeting on Let's Talk Ore Deposits
Country/TerritoryChile
CityAntofagasta
Period26/09/1129/09/11

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