Characterization of placer gold deposits from central Portugal: preliminary results

A Ehser, G Borg, D Oliveira, D. Rosa, R. Salgueiro

Research output: Chapter in Book/Report/Conference proceedingAbstract in proceedings

Abstract

he streams in the Lower Tagus Basin and along the contact of the Central Iberian and Ossa Morena zones in central Portugal carry significant amounts of gold. In this study, four placer gold deposits have been characterized using geochemical, morphological and heavy mineral data and compared with the styles of gold mineralization in the vicinity. The geochemical similarities of the Tagus palaeo-placer and the Tripeiro and Erges gold placers suggest a primary gold source likely to be similar to the mineralization found at Sarzedas and Pomar. The more heterogenic composition of the Caia gold placer probably reflects the different styles of mineralization found at La Codosera, Los Algarbes and Alburquerque to the east.
Original languageEnglish
Title of host publicationProceedings of the 11th biennial meeting of the Society of Geology Applied to Mineral Deposits
Place of PublicationAntofagasta
PublisherSociety for Geology Applied to Mineral Deposits
Pages814-816
Number of pages3
Publication statusPublished - 2011
Event11th Biennial SGA Meeting of the Society for Geology Applied to Mineral Deposits - Antofagasta, Chile
Duration: 1 Jan 2011 → …

Conference

Conference11th Biennial SGA Meeting of the Society for Geology Applied to Mineral Deposits
CityAntofagasta, Chile
Period1/01/11 → …

Programme Area

  • Programme Area 4: Mineral Resources

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