Results 121 to 130 of about 1,408 (173)

A failed human expansion out of Africa 100,000 years ago

Rose J, Garba R, Arnold L, Beshkani A, Bicho N, Černý V, Chlachula D, Dellmour R, Hallinan E, Kamenik J, Mahri AA, Mahrooqi AA, Meredith-Williams M, Samawi O, Usik V, Marks A.   +15 more
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The Red Sea and Gulf of Aden Basins

Journal of African Earth Sciences, 2005
Abstract We here summarize the evolution of the greater Red Sea–Gulf of Aden rift system, which includes the Gulfs of Suez and Aqaba, the Red Sea and Gulf of Aden marine basins and their continental margins, and the Afar region. Plume related basaltic trap volcanism began in Ethiopia, NE Sudan (Derudeb), and SW Yemen at ∼31 Ma, followed by rhyolitic ...
Philippe Huchon, Ken Mcclay
exaly   +3 more sources

3He and methane in the Gulf of Aden

Geochimica et Cosmochimica Acta, 1990
Abstract During the OCEAT cruise (July, 1987), the vertical and spatial distributions of 3He and methane were measured at six stations over the West Sheba Ridge (Gulf of Aden). The results show significant δ3He anomalies (up to 49%). We conclude that the origin of this signal is independent from the well-known Red Sea hydrothermal 3He (of Red Sea ...
Jean-Baptiste, P., Belviso, S., Alaux, G., Nguyen, B.C., Mihalopoulos, N.   +4 more
openaire   +2 more sources

Water masses in the Gulf of Aden

Journal of Oceanography, 2007
Hydrographic data collected from Gulf of Aden since 1920 have been compiled to identify and refine the definitions of water masses in the Gulf of Aden (GA) and to describe their spatio-temporal variability. Four water masses have been identified based on their θ-S characteristics.
Al Saafani, M.A., Shenoi, S.S.C.
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A Neopilina from the Gulf of Aden

Nature, 1967
ON February 22, 1967, R.R.S. Discovery, of the National Institute of Oceanography, dredged a single specimen of the monoplacophoran mollusc Neopilina in the Gulf of Aden. This specimen (Figs. 1–3) represents the first record of the genus beyond the deeps of the eastern Pacific.
openaire   +1 more source

Maritime awareness for counter-piracy in the Gulf of Aden

2011 IEEE International Geoscience and Remote Sensing Symposium, 2011
Maritime awareness is a keystone of counter-piracy activities, as they are nowadays unfortunately called for in the Gulf of Aden and the Western Indian Ocean. There are a number of space-based systems that can be used to obtain knowledge of shipping and ship traffic patterns beyond coastal range, e.g. Satellite AIS, LRIT and satellite SAR.
Monica Posada, Harm Greidanus, Marlene Alvarez, Michele Vespe, Tulay Cokacar, Silvia Falchetti   +5 more
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The geology of Socotra Island, Gulf of Aden

Quarterly Journal of the Geological Society of London, 1969
Basement rocks crop out in three main uplift areas; elsewhere they are overlain by a veneer of Cretaceous and Tertiary plateau limestones. The oldest basement rocks are amphibolite facies meta-sediments and meta-igneous rocks which have been intruded by synkinematic granites and late-kinematic gabbros; younger weakly metamorphosed tuffs ...
ZIAD RAFIQ BEYDOUN, HERBERT ROY BICHAN
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Seafloor spreading in the western Gulf of Aden

Nature, 1978
Interpretation of a new magnetic survey suggests that the evolution of the Gulf of Aden involved at least two phases of seafloor spreading. A recent phase from about 5 Myr ago to the present is well established and an early phase from about 30–15 Myr ago seems most likely.
R. W. Girdler, P. Styles
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A geophysical survey of the westernmost Gulf of Aden

Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1980
Abstract The Gulf of Aden has the features of a miniature Atlantic Ocean, namely a central rough zone, main trough and continental margins. It has probably evolved within the last 45 Ma, i.e. it is approximately one third the age of the Atlantic.
R. W. Girdler, C. Brown, D. J. M. Noy, P. Styles   +3 more
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Breakwater for Service Harbour, Gulf of Aden

Ports 2004, 2004
The Ash Shihr Harbour, on the Gulf of Aden was built by Canadian Nexen Petroleum Yemen (CNPY) in 1992/1993 to provide service support to a Single Buoy Mooring (SBM) used for oil tanker loading. The orientation of the harbor was originally designed to minimize wave agitation at the berth. As a result, the entrance to the harbor was placed on the eastern
Norman Allyn, Michael Quick, Ed Condon, Jan Lisztwan, Eric Morris   +4 more
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