VMS Deposits of Portugal

The Iberian Pyrite Belt is host to several world-class massive sulfide deposits, or clusters of deposits, including the producing Neves Corvo mine and the Aljustrel deposit, which includes the Fetais and Moinho mines. The 5 deposits at Aljustrel lie within an area of 3 x 2 km and are hosted by a sequence of rhyolitic rocks, whereas those at Neves Corvo, some 40 km to the south of Aljustrel, are hosted by a series of intercalated shales and rhyolites. The host rocks of all deposits are of Upper Devonian to lower Carboniferous age, and accumulated in subsiding rift basins on a submarine continental margin. The Aljustrel deposits contain over 150 Mt of massive sulfides in total, of which the Feitais deposit contains at least 55 Mt (it is still open in some directions). Some of the ore lenses at Neves Corvo have unusually high Cu grades, with high grades of tin locally.

Reports

Barrett, T.J., 2014.

Lithogeochemical results for drill holes sampled in 2013 at and near the Monte Branco deposit, Neves Corvo, Portugal. Unpublished report for Lundin Mining Corporation, Castro Verde, Portugal. 50 pp + 2 tables + 1 appendix.

Barrett, T.J., 2012c.

Lithogeochemical results for drill holes sampled in 2012 at and near the Semblana deposit, Neves Corvo, Portugal. Unpublished report (Dec. 7, 2012) for Lundin Mining Corporation, Castro Verde, Portugal. 29 pp + 2 tables + 1 appendix.

Barrett, T.J., 2012a.

Lithogeochemical results for drill holes sampled in 2011 at the Semblana deposit, Neves Corvo, Portugal. Unpublished report (July 24, 2012) for Lundin Mining Corporation, Castro Verde, Portugal. 42 pp + 2 tables.

Barrett, T.J., 2012b.

Results of June 2012 regional lithogeochemical program. Unpublished report for Lundin Mining Corporation, Portugal. 26 pp + 2 tables.

Barrett, T.J., 2012a.

Results of 2011 regional lithogeochemical program. Unpublished report for Lundin Mining Corporation, Portugal. 28 pp + 3 tables + 1 appendix.

Barrett, T.J., 2011c.

Initial lithogeochemical results at the Semblana deposit, Neves Corvo, Portugal. Unpublished report for Lundin Mining Corporation, Castro Verde, Portugal. 18 pp + 2 tables.

Barrett, T.J., 2011b.

Chemostratigraphy and alteration at the Lombador deposit, Neves Corvo, Portugal. Unpublished report for Lundin Mining Corporation, Castro Verde, Portugal. 16 pp + 3 tables.

Barrett, T.J., 2011a.

Lithogeochemistry and geological relations in selected drill holes and uutcrops: Lundin Mining regional exploration program, Portugal (November 2010 sampling program). Unpublished report for Lundin Mining Corporation, Castro Verde, Portugal. 13 pp + 2 tables.

Barrett, T.J., 2010c.

Chemostratigraphy and alteration at the Lombador deposit, Neves Corvo, Portugal. Unpublished report for Lundin Mining Corporation, Castro Verde, Portugal. 24 pp + 3 tables.

Barrett, T.J., 2010b.

Lithochemistry and geological relations in selected regional drill holes and outcrops: Lundin Mining regional exploration program, Portugal (June 2010 sampling program). Unpublished report for Lundin Mining Corporation, Portugal. 22 pp + 2 tables.

Barrett, T.J., 2010a.

Lithochemistry and geological relations in selected regional drill holes and outcrops: Lundin Mining regional exploration program, Portugal (2009 sampling program). Unpublished report for Lundin Mining Corporation, Portugal. 30 pp + 3 tables + 1 appendix.

Barrett, T.J., 2009.

Chemostratigraphy and petrography of volcanic rocks at the Neves Corvo deposit, Portugal. Unpublished report for Lundin Mining Corporation, Castro Verde, Portugal. 28 pp + 3 tables + 1 appendix.

Barrett, T.J., Dawson, G.L. and MacLean, W.H., 2008.

Volcanic stratigraphy, alteration, and sea-floor setting of the Paleozoic Feitais massive sulfide deposit, Aljustrel, Portugal. Economic Geology, v. 103, p. 215-239.

Barrett, T.J., 2008a.

Chemostratigraphy, Petrography and Alteration of Volcanic Rocks at the Feitais Deposit and in Two Regional Holes, Aljustrel Area, Portugal. Unpublished Report for Lundin Mining Corp., Castro Verde, Portugal. 33 pp + 2 tables.

Barrett, T.J., 2008b.

Chemostratigraphy and Petrography of Volcanic Rocks at the Neves Corvo Deposit, Portugal. Unpublished Report for Lundin Mining Corp., Castro Verde, Portugal. 40 pp + 2 tables + 1 appendix.

Barrett, T.J., 2005.

Chemostratigraphy, Petrography and Alteration of Volcanic Rocks at the Lagoa Salgada Deposit, Portugal. Unpublished Report for Redcorp Ventures Ltd., Vancouver, Canada. 18 pp + 2 tables + 2 appendices.

Barrett, T.J., MacLean, W.H. and Dawson, G.D., 2003.

Chemostratigraphy and alteration of felsic volcanic rocks hosting massive sulphide deposits at Aljustrel, Portugal. In: Mineral Exploration and Sustainable Development (edited by D. Eliopoulos, et al.). Proceedings of the Seventh Biennial SGA Meeting, Athens, Greece, 2003. Millpress Science Publishers, Rotterdam, p. 111-114.

Barrett, T.J. and MacLean, W.H., 1999.

Geological Relations at the Feitais VMS Deposit and in Some Outcrop Areas, Aljustrel, Portugal. Unpublished Report for EuroZinc Mining Corporation, Vancouver, Canada. 65 pp + 5 tables + 2 appendices.





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