Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.9/2100
Título: Integration of seismic, well, potential-field and geological data for ore prospecting in the Iberian Pyrite Belt
Autor: Carvalho, João P. G.
Sousa, Pedro
Matos, João Xavier
Pinto, Carlos C.
Palavras-chave: Geofísica aplicada
Prospecção geofísica
Gravimetria
Anomalias geomagnéticas
Refracção sísmica
Sismostratigrafia
Terciário
Paleozóico
Faixa Piritosa Ibérica
Data: Jun-2010
Citação: Carvalho, João; Sousa, Pedro; Matos, João Xavier; Pinto, Carlos - Integration of seismic, well, potential-field and geological data for ore prospecting in the Iberian Pyrite Belt. In: 72nd EAGE Conference & Exhibition incorporating SPE EUROPEC 2010, Barcelona, Spain, 14-17 June 2010
Resumo: Ore prospecting using gravimetric and magnetic data has become one of the traditional approaches in the last decades, often complemented with electric and electromagnetic methods. However, due to the problem of non-uniqueness inherent to potential-filed modelling, constrains provided by structural methods such as seismic reflection are often used. During the exploration of massive sulphide polimetallic minerals in the Iberian Pyrite Belt Figueira de Cavaleiros sector, located in the Sado Tertiary Basin, several gravimetric and magnetic anomalies were considered as interesting targets. In order to reduce ambiguity of the gravimetric modelling and to confirm the geological model of the area, two seismic reflection profiles were acquired. The interpretation of these profiles was assisted by three mechanical boreholes, two of them located in the research area, in order to make a seismostratigraphic interpretation. Unfortunately, the gravimetric modelling suggests that the anomaly has a lithological and structural origin and is not related with massive sulphides. Nevertheless, a good agreement between the seismic and potential-field data was achieved and new insights into the geological model for the region were obtained form this work, with accurate data about the Tertiary cover and Palaeozoic basement.
URI: http://hdl.handle.net/10400.9/2100
Aparece nas colecções:GF - Comunicações em actas de encontros científicos internacionais

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