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  • Other Sources  (3)
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  • 1
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    Unknown
    Das Forschungsschiff "Meteor" im ibero-marokkanischen Seegebiet [M8] (1967)
    Deutsche Forschungsgemeinschaft
    In:  Mitteilungen / Deutsche Forschungsgemeinschaft, 1967 (2). pp. 13-17.
    Details
    Publication Date: 2016-12-19
    Description: Die "Meteor" befindet sich zur Zeit auf der zweiten ihrer Kuppenfahrten im östlichen Atlantik. Über den ersten Fahrtabschnitt vom 11. Januar bis 7. März 1967 berichtet Prof. Dr. Eugen Seibold, Direktor des Geologischen Instituts der Universität Kiel, der diesen Teil der Expedition leitete. Im ersten Teil der "Atlantischen Kuppenfahrten 1967", auf der Fahrt "Meteor 8", stand der Kontinentalrand vor Portugal und Marokko im Vordergrund des wissenschaftlichen Interesses.
    Type: Article , PeerReviewed
    Format: text
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  • 2
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    Unknown
    Facies distribution patterns on the Spanish Sahara continental shelf mapped with side-scan sonar (1973)
    Bornträger
    Details
    Publication Date: 2022-07-19
    Description: The portion of the continental shelf off Spanish Sahara lying between 23° 00' N and 22° 18' N is 80 km wide, flattens slightly between 40 and 60 m and breaks to the slope at 110 m. Over 200 nautical miles of side-scan sonar profiles were run in both reconnaissance and detail track configuration. Each survey covered a strip of the bottom ca. 280 m wide. A sediment distribution pattern which appeared to have complex lateral variation was revealed to be the result of a) "windows" in a thin, fine-grained upper sand layer exposing a coarse-grained sand below. In outline these windows run the full range from strongly parallel strips (width ca. 20 m) to irregularly bounded, somewhat elongate forms (width over 200 m). They all exhibit a preferred orientation parallel to the isobaths; b) Outcrops of probable semi-lithified and truncated Pleistocene sand dunes at depths between 30 and 80 m. Other outcrops are thought to belong to Pleistocene beachrock and pre-Pleistocene strata; c) Fields of the pelecypod Pinna ramulosa in water depths between 48 and 57 m with characteristic acoustic reflections; d) Largescale, wave-formed ripples as well as current-formed megaripples. The side-scan interpretation was corroborated through underwater TV observations, coring, samling, and air-gun profiling.
    Type: Article , PeerReviewed
    Format: text
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  • 3
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    Unknown
    Continental slope anticline and unconformities off West Africa (1974)
    Bornträger
    Details
    Publication Date: 2022-07-19
    Description: The continental margin off West Africa between 22° and 27° N has not developed by simple progradation and continuous sedimentation. Two unconformities which can be followed over large distances and drillings both on land and at sea suggest that a pre-Oligocene shelf has subsided there by more than 2000 m caused by orogenic movements south of the Atlas region. The former shelf edge is marked today by a slope anticline. We prefer this regional explanation and not a global one combining the huge hiatuses in the sediment column underneath the present continental slope and rise with a dramatically stronger occanic circulation at the Paleogene/Neogene boundary. The subsided shelf sediments, the slope anticline and the unconformities are of specific interest for oil exploration.
    Type: Article , PeerReviewed
    Format: text
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