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Tornos Arroyo, Fernando and Carriedo, Jorge and Velasco Roldán, Francisco and Galindo Francisco, Mª del Carmen and Casquet, César (2011) The relationship between large deep mafic sills, crustal contamination and the formation of Ni-(Cu) and IOCG deposits. In Mineral Exploration and Research: Digging Deeper : Proceedings of the Ninth Biennial SGA Meeting, (Dublin, Ireland, 2007). SGA, Dublin, Ireland, pp. 975-978.
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Abstract
The Ossa Morena Zone (SW Iberia) hosts an unusual suite of ore deposits, including
magmatic Ni-(Cu) and IOCG mineralization. These deposits are interpreted to have a relationship to
a deep mafic sill intruded in the middle crust. Interaction of mafic magmas with crustal rocks produced
immiscible sulphide-rich melts and water-rich melts. The latter exsolved large amounts of
Fe- and CO2-rich brines that were responsible for widespread albite-actinolite alteration and IOCG
mineralization.
| Item Type: | Book Section |
|---|---|
| Uncontrolled Keywords: | Crustal contamination; Formation of Ni(Cu); IOCG deposits |
| Subjects: | Sciences > Geology > Petrology |
| ID Code: | 21779 |
| Deposited On: | 11 Jun 2013 08:30 |
| Last Modified: | 07 Feb 2014 10:36 |
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