TY - JOUR

T1 - Arabia-Somalia plate kinematics, evolution of the Aden-OwenCarlsberg triple junction, and opening of the Gulf of Aden

AU - Fournier, Marc

AU - Chamot rooke, Nicolas

AU - Petit, Carole

AU - Huchon, Philippe

AU - Al kathiri, Ali

AU - Audin, Laurence

AU - Beslier, Marie Odile

AU - D’acremont, Elia

AU - Fabbri, Olivier

AU - Fleury, Jean Marc

AU - Khanbari, Khaled

AU - Lepvrier, Claude

AU - Leroy, Sylvie

AU - Maillot, Bertrand

AU - Merkouriev, Serge

PY - 2010

Y1 - 2010

N2 - New geophysical data collected at the Aden‐Owen‐Carlsberg (AOC) triple junction between the Arabia, India, and Somalia plates are combined with all available magnetic data across the Gulf of Aden to determine the detailed Arabia‐Somalia plate kinematics over the past 20 Myr. We reconstruct the history of opening of the Gulf of Aden, including the penetration of the Sheba Ridge into the African continent and the evolution of the triple junction since its formation. Magnetic data evidence three stages of ridge propagation from east to west. Seafloor spreading initiated ∼20 Myr ago along a 200 km‐long ridge portion located immediately west of the Owen fracture zone. A second 500 km‐ long ridge portion developed westward up to the Alula‐Fartak transform fault before Chron 5D (17.5 Ma). Before Chron 5C (16.0 Ma), a third 700 km‐long ridge portion was emplaced between the Alula‐Fartak transform fault and the western end of the Gulf of Aden (45°E). Between 20 and 16 Ma, the Sheba Ridge propagated over a distance of

AB - New geophysical data collected at the Aden‐Owen‐Carlsberg (AOC) triple junction between the Arabia, India, and Somalia plates are combined with all available magnetic data across the Gulf of Aden to determine the detailed Arabia‐Somalia plate kinematics over the past 20 Myr. We reconstruct the history of opening of the Gulf of Aden, including the penetration of the Sheba Ridge into the African continent and the evolution of the triple junction since its formation. Magnetic data evidence three stages of ridge propagation from east to west. Seafloor spreading initiated ∼20 Myr ago along a 200 km‐long ridge portion located immediately west of the Owen fracture zone. A second 500 km‐ long ridge portion developed westward up to the Alula‐Fartak transform fault before Chron 5D (17.5 Ma). Before Chron 5C (16.0 Ma), a third 700 km‐long ridge portion was emplaced between the Alula‐Fartak transform fault and the western end of the Gulf of Aden (45°E). Between 20 and 16 Ma, the Sheba Ridge propagated over a distance of

U2 - 10.1029/2008JB006257

DO - 10.1029/2008JB006257

M3 - статья

VL - 115

SP - 1

EP - 24

JO - Journal of Geophysical Research: Biogeosciences

JF - Journal of Geophysical Research: Biogeosciences

SN - 0148-0227

ER -