Abstract
Hydrothermal cobalt deposits are an example of the relationship between ore mineralization and mafic magmatism. Three main types of hydrothermal cobalt ores are recognized in the Altay-Sayan fold area (Russia): Ni-Co-arsenic (Ni-Co-As), Co-sulfoarsenic (Co-As), and Cu-Co-sulfoarsenic-sulfosalts (Cu-Co-As). Analysis of the relationships among different types of hydrothermal cobalt mineralization at deposits of the Altay-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 diabase, dolerite or syenite. Cobalt ore formation in most ore cluster is also 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 show a close spatial and time connection of cobalt mineralization with matic and granitoid intrusions, as well as with mafic dikes.
| Original language | English |
|---|---|
| Title of host publication | SMART SCIENCE FOR EXPLORATION AND MINING, VOL 1 AND 2 |
| Editors | PJ Williams |
| Publisher | James Cook University |
| Pages | 297-299 |
| Number of pages | 3 |
| ISBN (Print) | 978-0-9805-5868-5 |
| Publication status | Published - 2010 |
| Externally published | Yes |
| Event | 10th Biennial SGA Meeting of the Society for Geology Applied to Mineral Deposits - Townsville, Australia Duration: 17 Aug 2009 → 20 Aug 2009 |
Conference
| Conference | 10th Biennial SGA Meeting of the Society for Geology Applied to Mineral Deposits |
|---|---|
| Country/Territory | Australia |
| City | Townsville |
| Period | 17/08/09 → 20/08/09 |