Actual Sedimentation on the Antarctic Continental Shelf (Southern Part of the Ross Sea)
During the austral summer 1994-95 the C.L.I.M.A. Project carried out an oceanographic cruise aimed at improving the caracterization of water masses inside the Ross Sea. A series of 154 CTD casts was performed and water samples were collected to study particulate matter, concentration data and dimensional analyses of particulate matter were correlated with physical characteristics. In the area of the Ross Ice Shelf high concentrations of particulate matter seem to coincide with the caracteristics of “Deep Ice Shelf Waters” and “Warm Core Waters”. The relationship between water masses and characteristics of particulate matter have enabled us to use this one as a natural tracer to identify flow pathways; results have also allowed to define a general hypothesis on actual sedimentation during the austral summer in the proximity of the RIS and at the edge of the continental shelf.
KeywordsWater Masse Continental Shelf Suspended Particulate Matter Suspended Matter Austral Summer
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- 1.Dunbar RB, Anderson JB, Domack EW, Jacobs SS (1984) Oceanographic influences on sedimentation along the Antarctic continental shelf. In: Jacobs SS (ed.) Oceanology of the Antarctic Continental Shelf. Am Geophys Union, Washington, DC, pp 291–312Google Scholar
- 2.Anderson JB, Brake FC, Myers NC (1984) Sedimentation on the Ross Sea continental shelf, Antarctica. Mar Geol 57: 295–333Google Scholar
- 3.Accornero A, Bergamasco A, Monaco A, Tucci S (1998) Particle fluxes at the edge of the Ross Ice Shelf the role of physical forcing (This Vol. )Google Scholar
- 4.Strickland JDH, Parsons TR (1968) A practical handbook of seawater analysis. Bull Fish Res Board of Canada 167: 1–311Google Scholar
- 5.Pierce JW, Tucci S, Fierro G (1981) Assessing variation in suspensates, Ligurian Sea (northwestern Mediterranean). Geo-Marine Letters 1: 149–154Google Scholar
- 6.Krank K, Milligan T (1978) The use of the Coulter Counter in studies of particle size-distribution. Aquatic Environment, Bedford Institute of Oceanography Dartmouth, Canada, Rep Ser BI-R-79–7, 48Google Scholar
- 8.Budillon G, Conversano F, Giaquinto G, Morgigni M (1995) Idrologia del Mare di Ross. PNRA Rapp Ant 95 (02): 428–435Google Scholar
- 9.Hayes DE, Davey FJ (1975) Geophysical study of the Ross Sea, Antarctica. Initial Rep DSDP, 28: 887907Google Scholar
- 11.Carter L, Mitchell JS, Day NJ (1981) Suspended sediment beneath permanent and seasonal ice, Ross Ice Shelf, Antarctica. New Zealand, J Geol Geophy 50, 24: 249–262Google Scholar
- 13.Leventer A, Dunbar R (1987) Diatom flux in McMurdo Sound, Antarctica. Mar Micropaleontol 112: 49–64Google Scholar
- 14.Heezen BC, Hollister CD (1971) The face of the deep. Oxford University, Press, New York, pp 659Google Scholar