Hassold, Noralynn J C; Rea, David K; van der Pluijm, Ben A; Parés, Josep M (2009): Paleomagnetic properties of ODP Hole 178-1101A. PANGAEA, https://doi.org/10.1594/PANGAEA.777736, Supplement to: Hassold, NJC et al. (2009): Mid-Pliocene to Recent abyssal current flow along the Antarctic Peninsula: Results from ODP Leg 178, Site 1101. Palaeogeography, Palaeoclimatology, Palaeoecology, 284(3-4), 120-128, https://doi.org/10.1016/j.palaeo.2009.09.011
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Sediments recovered from a drift deposit located on the Pacific side of the Antarctic Peninsula (ODP Leg 178, Site 1101) give a physical record of a bottom current, sourced from the Weddell Sea Deep Water, for the past 3 Ma. Sediment grain size and magnetic fabric analyses indicate a contourite depositional environment and little change in the average intensity of this current. Terrigenous fluxes decreased around the time of the onset of Northern Hemisphere Glaciation, which we interpret as a freezing of the base of the Antarctic Peninsula Ice Cap. Terrigenous fluxes have increased since 1.7 Ma implying a possible return of the Antarctic Peninsula Ice Cap to a more wet-based ice sheet.
Latitude: -64.372200 * Longitude: -70.261180
Date/Time Start: 1998-03-18T10:30:00 * Date/Time End: 1998-03-18T10:30:00
178-1101A * Latitude: -64.372200 * Longitude: -70.261180 * Date/Time: 1998-03-18T10:30:00 * Elevation: -3279.7 m * Penetration: 217.7 m * Recovery: 215.75 m * Location: South Pacific Ocean * Campaign: Leg178 * Basis: Joides Resolution * Device: Drilling/drill rig (DRILL) * Comment: 24 cores; 217.7 m cored; 0 m drilled; 99.1 % recovery