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High-resolution paleomagnetic records from Holocene sediments from the Palmer Deep, Western Antartic Peninsula
 

Summary: High-resolution paleomagnetic records from Holocene
sediments from the Palmer Deep, Western Antartic Peninsula
Stefanie Brachfeld aY
*, Gary D. Acton b
, Yohan Guyodo c
, Subir K. Banerjee a
a
Institute for Rock Magnetism and Department of Geology and Geophysics, University of Minnesota, Minneapolis, MN, USA
b
Ocean Drilling Program, Texas ApM University, College Station, TX, USA
c
Department of Geological Sciences, University of Florida, Gainesville, FL, USA
Received 2 March 2000; received in revised form 27 June 2000; accepted 27 June 2000
Abstract
Thick Holocene sedimentary sections ( s 45 m) cored in the Palmer Deep by the United States Antarctic Program
(USAP) and during Ocean Drilling Program (ODP) Leg 178 provide the first opportunity to examine past geomagnetic
field behavior at high southern latitudes. After removal of a low-coercivity drilling overprint the sediments display a
stable, single-component remanent magnetization. Two short cores that recovered the uppermost 2.6 m of sediment
have inclinations that fluctuate about the present day inclination (357) measured at Faraday Station, and several
features with wavelengths of 10 to 20 cm appear to be correlative. However, shipboard measurements of inclination

  

Source: Acton, Gary - Department of Geology, University of California, Davis

 

Collections: Geosciences