Characterization of placer gold deposits from central Portugal: preliminary results

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

Publikation: Bidrag til bog/rapport/konferenceproceedingsAbstract i proceedings

Abstrakt

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.
OriginalsprogEngelsk
TitelProceedings of the 11th biennial meeting of the Society of Geology Applied to Mineral Deposits
UdgivelsesstedAntofagasta
ForlagSociety for Geology Applied to Mineral Deposits
Sider814-816
Antal sider3
StatusUdgivet - 2011
Begivenhed11th Biennial SGA Meeting of the Society for Geology Applied to Mineral Deposits - Antofagasta, Chile
Varighed: 1 jan. 2011 → …

Konference

Konference11th Biennial SGA Meeting of the Society for Geology Applied to Mineral Deposits
ByAntofagasta, Chile
Periode1/01/11 → …

Programområde

  • Programområde 4: Mineralske råstoffer

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