Please use this identifier to cite or link to this item: http://hdl.handle.net/10174/27388

Title: Fluid constraints in the Miguel Vacas Cu deposit (Ossa-Morena Zone, Portugal)
Authors: MAIA, Miguel
MOREIRA, Noel
MIRÃO, José
NORONHA, Fernando
NOGUEIRA, Pedro
Keywords: Zona de Ossa-Morena
Inclusões Fluidas
Miguel Vacas
Cobre
Issue Date: 2019
Publisher: Acta Mineralogica-Petrographica Abstract Series
Citation: MAIA, M., MOREIRA, N., MIRÃO, J., NORONHA, F., NOGUEIRA, P. (2019), Fluid constraints in the Miguel Vacas Cu deposit (Ossa-Morena Zone, Portugal). Acta Mineralogica-Petrographica Abstract Series (ECROFI 2019), vol. 10, 77.
Abstract: The ancient Miguel Vacas copper mine belongs to a cluster of ancient Cu mines and occurrences in the Ossa-Morena Zone, specifically in the Sousel-Barrancos metallogenic belt (SBMB), such as Mociços, Ferrarias and Bugalho. This deposit is characterised by an anastomosing vein structure mainly composed of quartz + carbonate + sulphides that extends over 2 km in length with an NNW-SSE direction. Chalcopyrite is the main primary Cu mineralisation; strong supergene enrichment is evidenced by the mineral assemblage of libethenite, malachite, bornite and digenite. Prospects in the area also reveal the presence of arsenopyrite. An epigenetic epithermal model for the Cu mineralisation is proposed for Miguel Vacas, as well as for other SBMB deposits (Mateus et al., 2003). This study aims to the characterisation of the fluids related with the mineralising processes. Sampling was done in a borehole at different depths (eight samples from 53 to 188 m). This study allowed identifying three different FI types regarding their composition.
URI: http://hdl.handle.net/10174/27388
Type: article
Appears in Collections:GEO - Artigos em Livros de Actas/Proceedings

Files in This Item:

File Description SizeFormat
4_Maia et al (2019)_MV_ECROFI.pdf192.75 kBAdobe PDFView/Open
FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpaceOrkut
Formato BibTex mendeley Endnote Logotipo do DeGóis 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Dspace Dspace
DSpace Software, version 1.6.2 Copyright © 2002-2008 MIT and Hewlett-Packard - Feedback
UEvora B-On Curriculum DeGois