Paleomagnetic properties of ODP Hole 178-1101A

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.

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Cite this as

Hassold, Noralynn J C, Rea, David K, van der Pluijm, Ben A, Parés, Josep M (2009). Dataset: Paleomagnetic properties of ODP Hole 178-1101A. https://doi.org/10.1594/PANGAEA.777736

DOI retrieved: 2009

Additional Info

Field Value
Imported on November 30, 2024
Last update November 30, 2024
License CC-BY-3.0
Source https://doi.org/10.1594/PANGAEA.777736
Author Hassold, Noralynn J C
Given Name Noralynn J C
Family Name Hassold
More Authors
Rea, David K
van der Pluijm, Ben A
Parés, Josep M
Source Creation 2009
Publication Year 2009
Resource Type application/zip - filename: Hassold_2009a
Subject Areas
Name: LandSurface

Name: Lithosphere

Name: Paleontology

Related Identifiers
Title: Mid-Pliocene to Recent abyssal current flow along the Antarctic Peninsula: Results from ODP Leg 178, Site 1101
Identifier: https://doi.org/10.1016/j.palaeo.2009.09.011
Type: DOI
Relation: IsSupplementTo
Year: 2009
Source: Palaeogeography, Palaeoclimatology, Palaeoecology
Authors: Hassold Noralynn J C , Rea David K , van der Pluijm Ben A , Parés Josep M .