Relevant bibliographies by topics / Sea-floor spreading

Academic literature on the topic 'Sea-floor spreading'

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Published: 4 June 2021
Last updated: 28 July 2024

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Journal articles on the topic "Sea-floor spreading"

1

Dutch, Steven I. "An Advanced Sea-Floor Spreading Model." Journal of Geological Education 34, no. 1 (January 1986): 18–20. http://dx.doi.org/10.5408/0022-1368-34.1.18.

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Mutter, J. C. "Seismic Imaging of Sea-Floor Spreading." Science 258, no. 5087 (November 27, 1992): 1442–43. http://dx.doi.org/10.1126/science.258.5087.1442.

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Almalki, Khalid A., Peter G. Betts, and Laurent Ailleres. "Episodic sea-floor spreading in the Southern Red Sea." Tectonophysics 617 (March 2014): 140–49. http://dx.doi.org/10.1016/j.tecto.2014.01.030.

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Roest, W. R., and S. P. Srivastava. "Sea-floor spreading in the Labrador Sea: A new reconstruction." Geology 17, no. 11 (1989): 1000. http://dx.doi.org/10.1130/0091-7613(1989)017<1000:sfsitl>2.3.co;2.

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AGER, D. V. "Why do we call it ‘sea floor spreading’?" Geology Today 8, no. 4 (July 1992): 127. http://dx.doi.org/10.1111/j.1365-2451.1992.tb00384.x.

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Tolstoy, M., J. P. Cowen, E. T. Baker, D. J. Fornari, K. H. Rubin, T. M. Shank, F. Waldhauser, et al. "A Sea-Floor Spreading Event Captured by Seismometers." Science 314, no. 5807 (November 23, 2006): 1920–22. http://dx.doi.org/10.1126/science.1133950.

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TAMAKI, Kensaku. "Progress of the study of the sea-floor spreading." Journal of Geography (Chigaku Zasshi) 98, no. 3 (1989): 193–202. http://dx.doi.org/10.5026/jgeography.98.3_193.

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Müller, R. Dietmar, Walter R. Roest, and Jean-Yves Royer. "Asymmetric sea-floor spreading caused by ridge–plume interactions." Nature 396, no. 6710 (December 1998): 455–59. http://dx.doi.org/10.1038/24850.

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Taylor, Brian, Kirsten Zellmer, Fernando Martinez, and Andrew Goodliffe. "Sea-floor spreading in the Lau back-arc basin." Earth and Planetary Science Letters 144, no. 1-2 (October 1996): 35–40. http://dx.doi.org/10.1016/0012-821x(96)00148-3.

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Picard, M. Dane. "Harry Hammond Hess and the Theory of Sea-Floor Spreading." Journal of Geological Education 37, no. 5 (November 1989): 346–49. http://dx.doi.org/10.5408/0022-1368-37.5.346.

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Dissertations / Theses on the topic "Sea-floor spreading"

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Bullock, Andrew David. "From continental thinning to sea-floor spreading :." Thesis, University of Southampton, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.403883.

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Baines, A. Graham. "Geodynamic investigation of ultra-slow spreading oceanic lithosphere Atlantis Bank and vicinity, SW Indian Ridge /." Laramie, Wyo. : University of Wyoming, 2006. http://proquest.umi.com/pqdweb?did=1188873761&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.

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Whittaker, Joanne. "Tectonic consequences of mid-ocean ridge evolution and subduction." Thesis, The University of Sydney, 2008. http://hdl.handle.net/2123/3971.

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Mid-ocean ridges are a fundamental but insufficiently understood component of the global plate tectonic system. Mid-ocean ridges control the landscape of the Earth's ocean basins through seafloor spreading and influence the evolution of overriding plate margins during midocean ridge subduction. The majority of new crust created at the surface of the Earth is formed at mid-ocean ridges and the accretion process strongly influences the morphology of the seafloor, which interacts with ocean currents and mixing to influence ocean circulation and regional and global climate. Seafloor spreading rates are well known to influence oceanic basement topography. However, I show that parameters such as mantle conditions and spreading obliquity also play significant roles in modulating seafloor topography. I find that high mantle temperatures are associated with smooth oceanic basement, while cold and/or depleted mantle is associated with rough basement topography. In addition spreading obliquities greater than > 45° lead to extreme seafloor roughness. These results provide a predictive framework for reconstructing the seafloor of ancient oceans, a fundamental input required for modelling ocean-mixing in palaeoclimate studies. The importance of being able to accurately predict the morphology of vanished ocean floor is demonstrated by a regional analysis of the Adare Trough, which shows through an analysis of seismic stratigraphy how a relatively rough bathymetric feature can strongly influence the flow of ocean bottom currents. As well as seafloor, mid-ocean ridges influence the composition and morphology of overriding plate margins as they are consumed by subduction, with implications for landscape and natural resources development. Mid-ocean ridge subduction also effects the morphology and composition of the overriding plate margin by influencing the tectonic regime experienced by the overriding plate margin and impacting on the volume, composition and timing of arc-volcanism. Investigation of the Wharton Ridge slab window that formed beneath Sundaland between 70 Ma and 43 Ma reveals that although the relative motion of an overriding plate margin is the dominant force effecting tectonic regime on the overriding plate margin, this can be overridden by extension caused by the underlying slab window. Mid-ocean ridge subduction can also affect the balance of global plate motions. A longstanding controversy in global tectonics concerns the ultimate driving forces that cause periodic plate reorganisations. I find strong evidence supporting the hypothesis that the plates themselves drive instabilities in the plate-mantle system rather than major mantle overturns being the driving mechanism. I find that rapid sub-parallel subduction of the Izanagi mid-ocean ridge and subsequent catastrophic slab break o_ likely precipitated a global plate reorganisation event that formed the Emperor-Hawaii bend, and the change in relative plate motion between Australia and Antarctica at approximately 50 Ma
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Whittaker, Joanne. "Tectonic consequences of mid-ocean ridge evolution and subduction." University of Sydney, 2008. http://hdl.handle.net/2123/3971.

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Doctor of Philosophy(PhD)
Mid-ocean ridges are a fundamental but insufficiently understood component of the global plate tectonic system. Mid-ocean ridges control the landscape of the Earth's ocean basins through seafloor spreading and influence the evolution of overriding plate margins during midocean ridge subduction. The majority of new crust created at the surface of the Earth is formed at mid-ocean ridges and the accretion process strongly influences the morphology of the seafloor, which interacts with ocean currents and mixing to influence ocean circulation and regional and global climate. Seafloor spreading rates are well known to influence oceanic basement topography. However, I show that parameters such as mantle conditions and spreading obliquity also play significant roles in modulating seafloor topography. I find that high mantle temperatures are associated with smooth oceanic basement, while cold and/or depleted mantle is associated with rough basement topography. In addition spreading obliquities greater than > 45° lead to extreme seafloor roughness. These results provide a predictive framework for reconstructing the seafloor of ancient oceans, a fundamental input required for modelling ocean-mixing in palaeoclimate studies. The importance of being able to accurately predict the morphology of vanished ocean floor is demonstrated by a regional analysis of the Adare Trough, which shows through an analysis of seismic stratigraphy how a relatively rough bathymetric feature can strongly influence the flow of ocean bottom currents. As well as seafloor, mid-ocean ridges influence the composition and morphology of overriding plate margins as they are consumed by subduction, with implications for landscape and natural resources development. Mid-ocean ridge subduction also effects the morphology and composition of the overriding plate margin by influencing the tectonic regime experienced by the overriding plate margin and impacting on the volume, composition and timing of arc-volcanism. Investigation of the Wharton Ridge slab window that formed beneath Sundaland between 70 Ma and 43 Ma reveals that although the relative motion of an overriding plate margin is the dominant force effecting tectonic regime on the overriding plate margin, this can be overridden by extension caused by the underlying slab window. Mid-ocean ridge subduction can also affect the balance of global plate motions. A longstanding controversy in global tectonics concerns the ultimate driving forces that cause periodic plate reorganisations. I find strong evidence supporting the hypothesis that the plates themselves drive instabilities in the plate-mantle system rather than major mantle overturns being the driving mechanism. I find that rapid sub-parallel subduction of the Izanagi mid-ocean ridge and subsequent catastrophic slab break o_ likely precipitated a global plate reorganisation event that formed the Emperor-Hawaii bend, and the change in relative plate motion between Australia and Antarctica at approximately 50 Ma
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Russell, Simon Mark. "A magnetic study of the west Iberia and conjugate rifted continental margins : constraints on rift-to-/drift processes." Thesis, Durham University, 1999. http://etheses.dur.ac.uk/4358/.

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The analysis and modelling of magnetic anomalies at the conjugate rifted continental margins of the southern Iberia Abyssal Plain (TAP) and Newfoundland Basin have revealed that the sources of magnetic anomalies are distinctly different across both each margin and between the two margins. Analyses of synthetic anomalies and gridded sea surface magnetic anomaly charts west of Iberia and east of Newfoundland were accomplished by the methods of Euler deconvolution, forward and inverse modelling of the power spectrum, reduction-to-the-pole, and forward and inverse indirect methods. In addition, three near-bottom magnetometer profiles were analysed by the same methods in addition to the application of componental magnetometry. The results have revealed that oceanic crust, transitional basement and thinned continental crust are defined by magnetic sources with different characteristics. Over oceanic crust, magnetic sources are present as lava-flow-like bodies whose depths coincide with the top of acoustic basement seen on MCS profiles. Top-basement source depths are consistent with those determined in two other regions of oceanic crust. In the southern IAP, oceanic crust, ~4 km thick with magnetizations up to +1.5 A/m, generated by organized seafloor spreading was first accreted -126 Ma at the position of a N-S oriented segmented basement peridotite ridge. To the west, seafloor spreading anomalies can be modelled at spreading rates of 10 mm/yr or more. Immediately to the east, in a zone -10-20 km in width, I identify seafloor spreading anomahes which can only be modelled assuming variable spreading rates. In the OCT, sources of magnetic anomalies are present at the top of basement and up to -6 km beneath. I interpret the uppermost source as serpentinized peridotite, and the lowermost source as intruded gabbroic bodies which were impeded, whilst rising upwards, by the lower density serpentinized peridotites. Intrusion was accompanied by tectonism and a gradual change in conditions from rifting to seafloor spreading as the North Atlantic rift propagated northwards in Early Cretaceous times. Within thinned continental crust, sources are poorly lineated, and distributed in depth. Scaling relationships of susceptibility are consistent with the sources of magnetic anomalies within continental crust. OCT-type intrusions may be present in the mantle beneath continental crust. At the conjugate Newfoundland margin, seafloor spreading anomalies can be modelled at rates of 8 and 10 mm/yr suggesting an onset age consistent with that of the IAP. In the OCT there, I propose that magnetic anomalies are sourced in near top-basement serpentinized peridotites. An absence of magmatic material and the differences in basement character (with the IAP) suggest that conjugate margin evolution may have been asymmetric.
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Schwartz, Joshua J. "Growth and deformation of oceanic lithosphere Case studies from Atlantis Bank, Southwest Indian Ridge, and the Baker terrane, northeastern Oregon /." Laramie, Wyo. : University of Wyoming, 2007. http://proquest.umi.com/pqdweb?did=1400957191&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.

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König, Matthias. "Processing of shipborne magnetometer data and revision of the timing and geometry of the Mesozoic break-up of Gondwana = Auswertung schiffsfester Magnetometerdaten und die Neubestimmung des Zeitpunktes und der Geometrie des Mesozoischen Aufbruchs von Gondwana /." Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung, 2006. http://www.loc.gov/catdir/toc/fy0704/2006499118.html.

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Mihut, Dona. "Breakup and mesozoic seafloor spreading between the Australian and Indian plates." Phd thesis, Department of Geology and Geophysics, 1997. http://hdl.handle.net/2123/8940.

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Van, Avendonk Hermanus Josephus Antonius. "An investigation of the crustal structure of the Clipperton transform fault area using 3D seismic tomography /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 1998. http://wwwlib.umi.com/cr/ucsd/fullcit?p9823314.

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Grimes, Craig B. "Duration, rates, and patterns of crustal growth at slow-spreading mid-ocean ridges using zircon to investigate the evolution of in situ ocean crust /." Laramie, Wyo. : University of Wyoming, 2008. http://proquest.umi.com/pqdweb?did=1799840381&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.

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Books on the topic "Sea-floor spreading"

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Toomey, Douglas R. The tectonics and three-dimensional structure of spreading centers: Microearthquake studies and tomographic inversions. Woods Hole, Mass: Woods Hole Oceanographic Institution, 1987.

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Toomey, Douglas R. The tectonics and three-dimensional structure of spreading centers: Microearthquake studies and tomographic inversions. Woods Hole, Mass: Woods Hole Oceanographic Institution, 1987.

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Kong, Laura S. L. Variations in structure and tectonics along the Mid-Atlantic Ridge, 23⁰N and 26⁰N / by Laura S.L. Kong. Woods Hole, Mass: Woods Hole Oceanographic Institution, 1990.

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Cordery, Matthew Jean. Mantle convection, melt migration and the generation of basalts at mid-ocean ridges. Woods Hole, Mass: WHOI, 1991.

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Filatʹev, V. P. Mekhanizm formirovanii︠a︡ zony perekhoda mezhdu Aziatskim kontinentom i severo-zapadnoĭ Pat︠s︡ifikoĭ (s pozit︠s︡iĭ rotat︠s︡ionnoĭ tektoniki). Vladivostok: Dalʹnauka, 2005.

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Lafoy, Yves. Geological setting of the North Fiji Basin: A review. Suva, Fiji: Ministry of Lands & Mineral Resources, Mineral Resources Dept., 1992.

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Roest, Walter. Seafloor spreading pattern of the North Atlantic between 10⁰ and 40⁰ N: A reconstruction based on shipborne measurements and satellite altimeter data = Spreidingspatroon van de Noordatlantische Oceaan tussen 10⁰ and 40⁰ N : een reconstruktie gebaseerd op metingen op zee en satelliet-waarnemingen van de hoogte van het zeeoppervlak. Utrecht: Instituut voor Aardwetenschappen der Rijksuniversiteit te Ultrecht, 1987.

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Christeson, Gail L. Seismic constraints on shallow crustal processes at the East Pacific Rise. [Wood Hole, Mass: Woods Hole Oceanographic Institution, 1994.

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Pogrebit͡skiĭ, I͡U E., and S. P. Mashchenkov. Glubinnoe stroenie i ėvoli͡ut͡sii͡a litosfery t͡sentralʹnoĭ Atlantiki: Rezulʹtaty issledovaniĭ na Kanaro-Bagamskom geotraverse. Sankt-Peterburg: Izd-vo VNIIOkeangeologii͡a, 1998.

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König, Matthias. Processing of shipborne magnetometer data and revision of the timing and geometry of the Mesozoic break-up of Gondwana =: Auswertung schiffsfester Magnetometerdaten und die Neubestimmung des Zeitpunktes und der Geometrie des Mesozoischen Aufbruchs von Gondwana. Bremerhaven: Alfred-Wegener-Institut für Polar- und Meeresforschung, 2006.

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Book chapters on the topic "Sea-floor spreading"

1

Hekinian, Roger. "Oceanic Spreading Ridges and Sea Floor Creation." In Sea Floor Exploration, 165–253. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-03203-0_7.

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Elsasser, Walter M. "Sea-Floor Spreading as Thermal Convection." In Collected Reprint Series, 1101–12. Washington, DC: American Geophysical Union, 2014. http://dx.doi.org/10.1002/9781118782149.ch20.

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Pichon, Xavier Le. "Sea-Floor Spreading and Continental Drift." In Collected Reprint Series, 3661–97. Washington, DC: American Geophysical Union, 2014. http://dx.doi.org/10.1002/9781118782149.ch6.

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Dercourt, Jean, and Jacques Paquet. "Continental Drift and Sea-Floor Spreading." In Geology Principles & Methods, 135–54. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-4956-0_9.

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Dietz, Robert S. "Ocean-Basin Evolution by Sea-Floor Spreading." In Geophysical Monograph Series, 11–12. Washington, D. C.: American Geophysical Union, 2013. http://dx.doi.org/10.1029/gm006p0011.

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Corliss, J. B. "Sea Water, Sea-Floor Spreading, Subduction, and Ore Deposits." In The Geophysics of the Pacific Ocean Basin and Its Margin, 297. Washington, D. C.: American Geophysical Union, 2013. http://dx.doi.org/10.1029/gm019p0297.

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Hilde, Thomas W. C., Nobuhiro Isezaki, and John M. Wageman. "Mesozoic Sea-Floor Spreading in the North Pacific." In The Geophysics of the Pacific Ocean Basin and Its Margin, 205–26. Washington, D. C.: American Geophysical Union, 2013. http://dx.doi.org/10.1029/gm019p0205.

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Melson, W. G., T. L. Vallier, T. L. Wright, G. Byerly, and J. Nelen. "Chemical Diversity of Abyssal Volcanic Glass Erupted Along Pacific, Atlantic, and Indian Ocean Sea-Floor Spreading Centers." In The Geophysics of the Pacific Ocean Basin and Its Margin, 351–67. Washington, D. C.: American Geophysical Union, 2013. http://dx.doi.org/10.1029/gm019p0351.

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"(sea-)floor spreading." In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik, 1179. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_191128.

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"Chapter 13. SEA-FLOOR SPREADING." In The Ocean of Truth, 152–61. Princeton: Princeton University Press, 1986. http://dx.doi.org/10.1515/9781400854684.152.

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Conference papers on the topic "Sea-floor spreading"

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Kusky, Timothy M., Brian F. Windley, and Ali Polat. "FOUR BILLION YEAR RECORD OF OCEAN PLATE STRATIGRAPHY IN ACCRETIONARY OROGENS PRESERVE A RECORD OF SEA FLOOR SPREADING, SUBDUCTION, AND ACCRETION THROUGHOUT EARTH HISTORY." In GSA Annual Meeting in Seattle, Washington, USA - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017am-308052.

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Milsom, John, Phil Roach, Chris Toland, Don Riaroh, Chris Budden, and Naoildine Houmadi. "Comoros – New Evidence and Arguments for Continental Crust." In SPE/AAPG Africa Energy and Technology Conference. SPE, 2016. http://dx.doi.org/10.2118/afrc-2572434-ms.

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ABSTRACT As part of an ongoing exploration effort, approximately 4000 line-km of seismic data have recently been acquired and interpreted within the Comoros Exclusive Economic Zone (EEZ). Magnetic and gravity values were recorded along the seismic lines and have been integrated with pre-existing regional data. The combined data sets provide new constraints on the nature of the crust beneath the West Somali Basin (WSB), which was created when Africa broke away from Gondwanaland and began to move north. Despite the absence of clear sea-floor spreading magnetic anomalies or gravity anomalies defining a fracture zone pattern, the crust beneath the WSB has been generally assumed to be oceanic, based largely on regional reconstructions. However, inappropriate use of regional magnetic data has led to conclusions being drawn that are not supported by evidence. The identification of the exact location of the continent-ocean boundary (COB) is less simple than would at first sight appear and, in particular, recent studies have cast doubt on a direct correlation between the COB and the Davie Fracture Zone (DFZ). The new high-quality reflection seismic data have imaged fault patterns east of the DFZ more consistent with extended continental crust, and the accompanying gravity and magnetic surveys have shown that the crust in this area is considerably thicker than normal oceanic and that linear magnetic anomalies typical of sea-floor spreading are absent. Rifting in the basin was probably initiated in Karoo times but the generation of new oceanic crust may have been delayed until about 154 Ma, when there was a switch in extension direction from NW-SE to N-S. From then until about 120 Ma relative movement between Africa and Madagascar was accommodated by extension in the West Somali and Mozambique basins and transform motion along the DFZ that linked them. A new understanding of the WSB can be achieved by taking note of newly-emerging concepts and new data from adjacent areas. The better-studied Mozambique Basin, where comprehensive recent surveys have revealed an unexpectedly complex spreading history, may provide important analogues for some stages in WSB evolution. At the same time the importance of wide continent-ocean transition zones marked by the presence of hyper-extended continental crust has become widely recognised. We make use of these new insights in explaining the anomalous results from the southern WSB and in assessing the prospectivity of the Comoros EEZ.
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Balash, Cheslav, David Sterling, Matt Broadhurst, Arno Dubois, and Morgan Behrel. "Hydrodynamic Evaluation of a Generic Sail Used in an Innovative Prawn-Trawl Otter Board." In ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/omae2015-41335.

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In prawn-trawling operations, otter boards provide the horizontal force required to maintain net openings, and are typically low aspect ratio (∼0.5) flat plates operating on the seabed at high angles of attack (AOA; 35–40°). Such characteristics cause otter boards to account for up to 30% of the total trawling resistance, including that from the vessel. A recent innovation is the batwing otter board, which is designed to spread trawls with substantially less towing resistance and benthic impacts. A key design feature is the use of a sail, instead of a flat plate, as the hydrodynamic foil. The superior drag and benthic performance of the batwing is achieved by (i) successful operation at an AOA of ∼20° and (ii) having the heavy sea floor contact shoe in line with the direction of tow. This study investigated the hydrodynamic characteristics of a generic sail by varying its twist and camber, to identify optimal settings for maximum spreading efficiency and stability. Loads in six degrees of freedom were measured at AOAs between 0 and 40° in a flume tank at a constant flow velocity, and with five combinations of twist and camber. The results showed that for the studied sail, the design AOA (20°) provides a suitable compromise between greater efficiency (occurring at lower AOAs) and greater effectiveness (occurring at higher AOAs). At optimum settings (20°, medium camber and twist), a lift-to-drag ratio >3 was achieved, which is ∼3 times more than that of contemporary prawn-trawling otter boards. Such a result implies relative drag reductions of 10–20% for trawling systems, depending on the rig configuration.
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Reports on the topic "Sea-floor spreading"

1

Srivastava, S. P., and W. R. Roest. Sea floor spreading history, II, Labrador sea, Plate reconstructions, Bathymetry. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1989. http://dx.doi.org/10.4095/127204.

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Roest, W. R., and S. P. Srivastava. Sea floor spreading history, I, Labrador sea, Magnetic anomalies along track. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1989. http://dx.doi.org/10.4095/127203.

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Srivastava, S. P., and W. R. Roest. Sea floor spreading history, IV, Labrador sea, Plate reconstruction, Closure bathymetry. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1989. http://dx.doi.org/10.4095/127206.

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Srivastava, S. P., and W. R. Roest. Sea floor spreading history, V, Labrador sea, Plate reconstruction, Closure gravity anomaly. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1989. http://dx.doi.org/10.4095/127207.

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Srivastava, S. P., and W. R. Roest. Sea floor spreading history, VI, Labrador sea, Plate reconstruction, Closure magnetic anomaly. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1989. http://dx.doi.org/10.4095/127208.

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Sea floor spreading history, III, Labrador sea, Plate reconstructions, Gravity and magnetic anomalies. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1989. http://dx.doi.org/10.4095/127205.

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