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| Hekinian, Roger; Cheminee, J; Dubois, J; Stoffers, P; Scott, S; Guivel, C; Garbe Schonberg, D; Devey, C; Bourdon, B; Lackschewitz, K; Mcmmurtry, G; Le Drezen, Eliane. |
| Multibeam bathymetry and bottom imaging (Simrad EM12D) studies on an area of about 9500 km(2) were conducted over the Pitcairn hotspot near 25degrees10'S, 129degrees 20'W In addition, 15 dives with the Nautile submersible enabled us to obtain ground-true observations and to sample volcanic structures on the ancient ocean crust of the Farallon Plate at 3500-4300 in depths. More than 100 submarine volcanoes overprint the ancient crust and are divided according to their size into large ( > 2000 in in height), intermediate (500-2000 in high) and small ( < 500 in high) edifices. The interpretation of seafloor backscatter imagery accompanied by submersible observations and sampling enabled us to infer that the total volume of submarine lava erupted during... |
| Tipo: Text |
Palavras-chave: Petrology; Volcanic sequences; Morphology; Volcanism; Hotspot. |
| Ano: 2003 |
URL: https://archimer.ifremer.fr/doc/2003/publication-784.pdf |
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| Vincent, R; Chamot-rooke, N; Deplus, C; Diament, M; Dubois, J; Huchon, P; Larue, M; Voisset, M; Rigolet, P. |
| The Krakatau project has been launched as a regional study along the Indonesian island arc aiming at understanding the response of an island arc and of its fore-arc to an increased obliquity in the convergence along its subducting border. Along the Sunda island arc, convergence varies from near-to-normal along Java to increasingly oblique along Sumatra, and to near-to-tangent along the Andaman-Nicobar ridge. As a result of this increased obliquity, it has been assumed that the fore-arc region has been mobilized, as a whole as a series of segmented units with a resulting strike-slip motion parallel to the island-arc. |
| Tipo: Text |
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| Ano: 1990 |
URL: http://archimer.ifremer.fr/doc/00268/37897/35978.pdf |
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