Uenzelmann-Neben, G. et al. (2011): Palaeoceanographic interpretation of a seismic profile from the southern Mozambique Ridge, southwestern Indian Ocean

Leg/Site/Hole:
DSDP 25
DSDP 25 249
Identifier:
2012-035760
georefid

Creator:
Uenzelmann-Neben, G.
Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany
author

Watkeys, M. K.
University of KwaZulu-Natal, South Africa
author

Kretzinger, W.
University of Kiel, Germany
author

Frank, M.
author

Heuer, L.
author

Identification:
Palaeoceanographic interpretation of a seismic profile from the southern Mozambique Ridge, southwestern Indian Ocean
2011
South African Journal of Geology
Bureau for Scientific Publications, Pretoria, South Africa
114
3-4
449-458
Seismic reflection data from the southern Mozambique Ridge, Southwestern Indian Ocean, show indications for a modification in the oceanic circulation system during the Neogene. Major reorganisations in the Indian Ocean circulation system accompanying the closure of the Indonesian Gateway led to the onset of current controlled sedimentation in the vicinity of the Mozambique Ridge at approximately 14 Ma. The modifications in water mass properties and path are documented in changes in reflection characteristics in the Mozambique Ridge area. Correlating these with identified changes of the Nd isotope evolution in deep water masses the general present day large scale circulation in the southern Indian Ocean is suggested to have prevailed for the last 9 Ma. References should not be included in abstracts.
English
Serial
Coverage:Geographic coordinates:
North:-20.0000
West:30.0000East: 45.0000
South:-35.0000

Stratigraphy; Applied geophysics; bathymetry; Cenozoic; continental margin; data acquisition; data processing; Deep Sea Drilling Project; DSDP Site 249; geophysical methods; geophysical profiles; geophysical surveys; Indian Ocean; Leg 25; Mozambique Ridge; Neogene; ocean floors; paleo-oceanography; provenance; reflection methods; sedimentation; seismic methods; seismic profiles; surveys; Tertiary; thermohaline circulation; Transkei Basin;

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