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| Bouyahiaoui, B.; Sage, F.; Abtout, A.; Klingelhoefer, Frauke; Yelles-chaouche, K.; Schnuerle, P.; Marok, A.; Deverchere, Jacques; Arab, M.; Galve, A.; Collot, J.y.. |
| We determine the deep structure of the eastern Algerian basin and its southern margin in the Annaba region (easternmost Algeria), to better constrain the plate kinematic reconstruction in this region. This study is based on new geophysical data collected during the SPIRAL cruise in 2009, which included a wide-angle, 240-km-long, onshore–offshore seismic profile, multichannel seismic reflection lines and gravity and magnetic data, complemented by the available geophysical data for the study area. The analysis and modelling of the wide-angle seismic data including refracted and reflected arrival travel times, and integrated with the multichannel seismic reflection lines, reveal the detailed structure of an ocean-to-continent transition. In the deep basin,... |
| Tipo: Text |
Palavras-chave: Tomography; Composition of the oceanic crust; Continental margins; Divergent; Africa. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00269/38016/36103.pdf |
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| Poort, Jeffrey; Lucazeau, Francis; Le Gal, Virginie; Dal Cin, Michaela; Leroux, Estelle; Bouzid, Abderrezak; Rabineau, Marina; Palomino, Désirée; Battani, Anne; Akhmanov G., Grigory; Ferrante G., Matilde; Gafurova R., Dina; Si Bachir, Roza; Koptev, Alexander; Tremblin, Maxime; Bellucci, Massimo; Pellen, Romain; Camerlenghi, Angelonghi; Migeon, Sebastien; Alonso, Belen; Ercilla, Gemma; Yelles-chaouche A., Karim; Khlystov M., Oleg. |
| The Western Mediterranean basin has been formed by Miocene back-arc extension and is underlain by a thin and young lithosphere. This young lithosphere is warm, as testified by an overall elevated offshore heat flow. Heat flow within the Western Mediterranean is, however, highly variable and existing data are unevenly distributed and poorly studied in the central part of the Liguro-Provençal and Algero-Balearic basins. This central part is floored by a young oceanic crust, bordered by different continental margins, cut by transform faults, and filled by up to 8 km of sediments. We present a total of 148 new heat flow data collected during the MedSalt and WestMedFlux cruises in 2015 and 2016 and aligned along seven regional profiles that show an important... |
| Tipo: Text |
Palavras-chave: Heat flow; Western Mediterranean Sea; Liguro-Provencal basin; Algero-Balearic basin; Continental margins; Oceanic crust. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00588/70052/67992.pdf |
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| D'Acremont, E; Leroy, S; Beslier, Mo; Bellahsen, N; Fournier, M; Robin, C; Maia, M; Gente, P. |
| The Gulf of Aden is a young and narrow oceanic basin formed in Oligo-Miocene time between the rifted margins of the Arabian and Somalian plates. Its mean orientation, N75 degrees E, strikes obliquely (50 degrees) to the N25 degrees E opening direction. The western conjugate margins are masked by Oligo-Miocene lavas from the Afar Plume. This paper concerns the eastern margins, where the 19-35 Ma breakup structures are well exposed onshore and within the sediment-starved marine shelf. Those passive margins, about 200 km distant, are non-volcanic. Offshore, during the Encens-Sheba cruise we gathered swath bathymetry, single-channel seismic reflection, gravity and magnetism data, in order to compare the structure of the two conjugate margins and to reconstruct... |
| Tipo: Text |
Palavras-chave: Continental margins; Gulf of Aden; Ocean-continent transition; Plate divergence; Rifted margin; Seafloor spreading. |
| Ano: 2005 |
URL: https://archimer.ifremer.fr/doc/00230/34079/32539.pdf |
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| Zurita, G.. |
| El común orígen geológico de las Islas galápagos y las cordilleras Carnegie y Cocos permite la posibilidad de extender la plataforma ecuatorial hasta 350 millas desde las Islas, de acuerdo a consideraciones estipuladas en el Nuevo Derecho del Mar. Después de una serie de investigaciones realizadas por instituciones internacionales, los depósitos minerales existentes en este área han sido evaluados económicamente, los que pueden haber sido sub o sobreestimados. Se considera necesaria mayor investigación en los lugares de asentamiento de yacimiento minerales, de manera de conocer su real valía. Ante la situación expectante creada a raíz de la apertura para la firma del Nuevo Derecho, el Ecuador debe tomar en cuenta la posibilidad presentada en este trabajo... |
| Tipo: Journal Contribution |
Palavras-chave: Law of the sea; Mineral exploration; Continental shelves; Continental margins; Continental shelves; Http://aims.fao.org/aos/agrovoc/c_32413. |
| Ano: 1989 |
URL: http://hdl.handle.net/1834/2162 |
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