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Title: Resultados preliminares de um estudo paleomagnético da ilha do Faial (Arquipélago dos Açores)
Other Titles: Preliminary Paleomagnetic results for Faial Island (Azores archipelago)
Authors: Silva, Pedro
Henry, Bernard
Hildenbrand, Anthony
Marques, Fernando
Madureira, Pedro
Keywords: Paeomagnetismo
Ilha do Faial
Issue Date: Jun-2008
Publisher: Sersilito; Edição a cargo de C. Sousa Oliveira; Aníbal Costa; João C. Nunes
Abstract: We present preliminary paleomagnetic results dor Faial Island (central group of Azores Archipelago, North Atlantic Ocean). Our sampling strategy was focused on a collection of samples from lava flows that represent a large temporal window according to previous geochronological data. Main results show that: (i) onshore volcanic activity began during the Matuyama geomagnetic chron; (ii) the southern branch of the Faial graben probably corresponds to an oldest volcano; (iii) paleomagnetic results from the northern branch strongly suggest that all lava sequence from this site was erupted durong Brunhes Geochron; (iv) paleomagnetic results yeld a first paleomagnetic pole for Faial Island defined by φ = 133.8º, λ = 80.2ºN.
ISBN: 978-989-20-1223-0
Type: bookPart
Appears in Collections:GEO - Publicações - Capítulos de Livros
CGE - Publicações - Capítulos de Livros

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