Show simple item record

A Comparison Between the Metamorphism of the Cameros Basin (Spain) and the Witwatersrand Gold Field (South Africa). Metallogenetic Implications

dc.contributor.authorMantilla Figueroa, L. C.
dc.contributor.authorCasquet Martín, César
dc.contributor.authorMas, José Ramón
dc.description.abstractThe Witwatersrand Coldfield (WCF) and the Cameros Basin (CB) were subjected to widespread fluid flow during metamorphism. Physical conditions reached at the thermal peaks have been estimated at 1 kb and 340°C in the case of the CB and 1-2kb and 350 ± 50°C in the WCF (i.e. subgreenschist and greenschist facies conditions). In both cases the infiltrating fluids were predominantly of deep intra-basinal and metamorphic origin and the fluid flow was focused along zones of enhanced permeability (pervasive cleavage, shear zones, fractures and bedding). Phyrophillite and chloritoid are common minerals in the internal parts of the metamorphic areas. Cold and U, accompanied by organic matter, were introduced late in the WGF; In the CB no evidence still exist of this economically important event. In the two basins, metamorphism is post-depositional, 300 to 600 Ma younger in the Archean WGF, and inmediatly subsequent in the case of the Mesozoic CB . In this case a relationship with a first stage of basin inversion seems probable. The many similarities between metamorphism in the two basins and the new model of hot migrating fluid-driven metamorphism invoked in both cases, open room for new prospecting strategies of metals of echonomic interest in the CBen_US
dc.publisherSociedad Geológica de Españaen_US
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.subject.otherSedimentary basinsen_US
dc.subject.otherFluid flowen_US
dc.subject.otherWitwatersrand Gold Fielden_US
dc.subject.otherCameros Basinen_US
dc.titleComparación entre el metamorfismo de la Cuenca de Cameros y el de la Cuenca Aurífera de Witwatersrand (Suráfrica). Implicaciones Metalogenéticasen_US
dc.titleA Comparison Between the Metamorphism of the Cameros Basin (Spain) and the Witwatersrand Gold Field (South Africa). Metallogenetic Implicationseng

Files in this item

This item appears in the following Collection(s)

Show simple item record

Atribución-NoComercial-SinDerivadas 3.0 España
Except where otherwise noted, this item's license is described as Atribución-NoComercial-SinDerivadas 3.0 España

Copyright © 2008-2010. ARIAS MONTANO. Repositorio Institucional de la Universidad de Huelva
Contact Us | Send Feedback |