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Stream sediments geochemistry on the Valongo anticlinal, northern Portugal: Ars...

Carvalho1, P.; Albuquerque, M.T.D.; Chambel, L.; Silva, M.; Rocha, F.

The Valongo anticline is known for the occurrence of several Sb-Au and As-Au mineral deposits, many of which have been exploited since Roman times. The Sb-Au and As-Au deposits occur in brecciated quartz veins, predominantly trending NE-SW, NNW-SSE, and ENE-WSW, cutting Cambrian to Carboniferous formations. An 801-stream sediment campaign was conducted in this area. Factorial kriging was applied as an interpola...

Date: 2025   |   Origin: Repositório Científico do Instituto Politécnico de Castelo Branco
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