IMIS

Publicaties | Instituten | Personen | Datasets | Projecten | Kaarten
[ meld een fout in dit record ]mandje (2): toevoegen | toon Print deze pagina
one publication added to basket [78088]
Geology of the Red Sea transitional region (22 degree N-25 degree N)
Bonatti, E.; Colantoni, P.; Della Vedova, B.; Taviani, M. (1984). Geology of the Red Sea transitional region (22 degree N-25 degree N). Oceanol. Acta 7(4): 385-398
In: Oceanologica Acta. Elsevier/Gauthier-Villars: Montreuil. ISSN 0399-1784; e-ISSN 1878-4143, meer
Peer reviewed article  
Beschikbaar in  Auteurs 
Trefwoorden
    Earth sciences > Geology
    Earth sciences > Geology > Tectonics
    Earth structure > Earth crust > Oceanic crust
    Energy transfer > Heat transfer > Heat flow
    Hydrothermal activity
    Measurement
    Records > Analog records > Seismic profiles > Seismic reflection profiles
    Rift zones
    Rocks > Igneous rocks > Volcanic rocks > Basalts
    Seafloor spreading
    Topographic features > Submarine features > Fracture zones
    Topography > Topography (geology) > Bottom topography
    ISW, Red Sea [Marine Regions]
    Marien/Kust
Auteurs  Top 
  • Bonatti, E.
  • Colantoni, P.
  • Della Vedova, B.
  • Taviani, M.
Abstract
    The Red Sea between 22 degree N and 25 degree N is transitional between the southern Red Sea, where an axial rift valley with strong magnetic signature is almost continuous, and the Northern Red Sea where the axial valley and associated magnetic anomalies are absent. The Nereus trough has an axial rift valley morphology and is carpeted by basalts, indicating emplacement of oceanic type crust; magnetic anomalies suggest sea floor spreading initiated about 2-3 m.y.b.p. at the Nereus segment. Heat flow within the Nereus trough ranges from very high to very low, indicating sub-sea floor hydrothermal convective circulation, confirmed by the presence of brine pools and of metalliferous deposits. A basaltic seamount protruding through the sediments at the axis of the Bannock Deep, a subdued axial graben to the north of Nereus, may indicate punctiform initiation of another oceanic segment. The orientation of the Red Sea axis changes by about 50 degree at the Transitional Region, which is crossed by a fracture zone (Zabargad Fracture Zone) parallel to the Dead Sea fault and probably inherited from a pre-Red Sea lineament.
Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid Top | Auteurs