Results 21 to 30 of about 2,705 (206)
The economic importance of contourites [PDF]
Geological Society, London, Special Publications, 2007 Abstract The importance of contour currents in shaping and building continental margins has long been accepted. Their economic implications and the stratigraphic framework in which they are developed remain largely unknown. Data retrieved from sidescan sonar images, seismic profiles and their attribute maps, as well as sea-floor coring ...
A. R. Viana +3 more
openaire +1 more source
OCEANOGRAPHIC MOWER CRUISE [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015 The MOWER Cruise has executed a geophysics and geologic expedition in the Gulf of Cádiz (sector adjacent to the Strait of Gibraltar) and west off Portugal, in the framework of the coordinate research project MOWER “Erosive features and associated sandy ...
J. Valencia +3 more
doaj +1 more source
Seismic characteristics of sediment drifts: An example from the Agulhas Plateau, southwest Indian Ocean [PDF]
, 2001 Sediment drifts provide information on the palaeoceanographic development of a region. Additionally, they may represent hydrocarbon reservoirs. Because of this, sediment drift investigation has increased over the last few years. Nevertheless, a number of
Uenzelmann-Neben, Gabriele
core +1 more source
Investigations on the Peach 4 Debrite, a Late Pleistocene Mass Movement on the Northwest British Continental Margin [PDF]
, 2010 The Peach 4 debrite is the most recent in a series of large scale Pleistocene MTDs within the Barra fan on the northwest British continental margin. Geophysical data indicate that Peach 4 was formed through a combination of blocky and muddy debris flows
D Kroon +18 more
core +2 more sources
Latin American Journal of Sedimentology and Basin Analysis, 2021 The Southwestern Atlantic margin is characterized by several canyon systems incised on a huge contourite depositional system associated with the interaction of strong Antarctic water masses with the seafloor. So far, however, only one mega slide canyon (
Paula Franco-Fraguas +8 more
doaj +2 more sources
Geochemistry, Geophysics, Geosystems, 2021 Subducted sediment plays a key role in modulating pore pressure and seismic behavior at subduction zones. We investigated the seismic character of incoming sediments to test how sediment and basement variations relate to the along‐strike changes within ...
H. Tilley +6 more
doaj +1 more source
Secondary flow in contour currents controls the formation of moat-drift contourite systems
Communications Earth & Environment, 2023 Ocean currents control seafloor morphology and the transport of sediments, organic carbon, nutrients, and pollutants in deep-water environments. A better connection between sedimentary deposits formed by bottom currents (contourites) and hydrodynamics is
Henriette Wilckens +5 more
doaj +1 more source
Mediterranean Outflow and surface water variability off southern Portugal during the early Pleistocene: A snapshot at Marine Isotope Stages 29 to 34 (1020-1135 ka) [PDF]
, 2015 Centennial-to-millennial scale records from IODP Site U1387, drilled during IODP Expedition 339 into the Faro Drift at 558 m water depth, now allow evaluating the climatic history of the upper core of the Mediterranean Outflow (MOW) and of the surface ...
Bahr, Andre +17 more
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Onset of Mediterranean outflow into the North Atlantic [PDF]
, 2014 Sediments cored along the southwestern Iberian margin during Integrated Ocean Drilling Program Expedition 339 provide constraints on Mediterranean Outflow Water (MOW) circulation patterns from the Pliocene epoch to the present day.
Acton, Gary +69 more
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Frontiers in Earth Science, 2019 An estimated 8.3 billion tons of non-biodegradable plastic has been produced over the last 65 years. Much of this is not recycled and is disposed into the natural environment, has a long environmental residence time and accumulates in sedimentary systems
Ian A. Kane, Michael A. Clare
doaj +1 more source