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	Provedor de dados ArchiMer (1) Autor Graham, D.w. (1) Maia, M. (1) Mittelstaedt, E. (1) Sibrant, A.l.r. (1) Palavra-chave Amsterdam-St (1) Geophysical and geochemical evidence (1) Oceanic plateaus (1) Paul Plateau (1) Plume-ridge interaction (1) South East Indian Ridge (1) Ywords (1) Mais... Tipo do documento Text (1) Ano 2019 (1) País France (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Variable crustal production originating from mantle source heterogeneity beneath the South East Indian Ridge and Amsterdam‐St. Paul Plateau ArchiMer Sibrant, A.l.r.; Maia, M.; Mittelstaedt, E.; Graham, D.w.. The Amsterdam‐St. Paul (ASP) Plateau formed by interaction between the South East Indian Ridge (SEIR) and the ASP mantle plume during the last 10 Myr. The combined bathymetry and gravity‐derived crustal thickness anomalies along the present and paleoaxes of the SEIR atop the plateau indicate: (1) a thicker crust and shallower water depth along the southern part of segment I2 during much of the last 10 Myr; (2) an earlier decrease (~1.4 Ma) in crustal thickness along the southern part of I2 compared to the northern part (~0.9 Ma) during the most recent period of reduced magmatism; (3) a topographic transition at ~0.7 Ma and during the last 0.1 Myr; and (4) an approximately uniform crustal thickness (8 km) along the entire I2 segment today. These... Tipo: Text Palavras-chave: Ywords; Oceanic plateaus; Plume-ridge interaction; Amsterdam-St; Paul Plateau; South East Indian Ridge; Geophysical and geochemical evidence. Ano: 2019 URL: https://archimer.ifremer.fr/doc/00587/69863/67761.pdf Registros recuperados: 1 Primeira ... 1 ... Última

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