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Provedor de dados:  ArchiMer
País:  France
Título:  Shallow-water volcanic edifices in high-resolution seismic-reflection profiles - examples from the gulf of naples (italy)
Autores:  Fusi, N
Data:  1994
Ano:  1994
Palavras-chave:  VOLCANISM
GULF OF NAPLES
SEISMIC FACIES
EUSTATISM
Resumo:  The Gulf of Naples (southern Italy) is well known for active subaerial volcanism (Somma-Vesuvius and Phlegrean Fields). Several shallow submarine volcanic edifices are known to exist around the Phlegrean area, but these have never been studied in detail. These volcanoes, located on the shelf, at a maximum depth of 150 m, are characterized by two different seismic facies in high-resolution seismic reflection profiles: 1) chaotic reflections, with variable amplitude and frequency; 2) in-phase reflections, with low frequency and high amplitude or high frequency and low amplitude. Seismic facies (1) is interpreted as an image of massive volcanic deposits, such as lava flows, domes, pyroclastic flows or lahars; while seismic facies (2) is interpreted as reflecting layered pyroclastic deposits, such as surge and fall deposits. This seismic interpretation is confirmed by other geophysical and geological data available for the studied area.
Tipo:  Text
Idioma:  Inglês
Identificador:  http://archimer.ifremer.fr/doc/00098/20889/18503.pdf
Editor:  Gauthier-Villars
Relação:  http://archimer.ifremer.fr/doc/00098/20889/
Formato:  application/pdf
Fonte:  Oceanologica Acta (0399-1784) (Gauthier-Villars), 1994 , Vol. 17 , N. 1 , P. 25-31
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