Magnetostratigraphy and environmental magnetism of two Quaternary deep-sea gravity cores from the west Pacific Southern Ocean
We present new paleomagnetic data for Quaternary u channel samples from two deep-sea gravity cores from the west Pacific Southern Ocean. These cores were recovered in the Antarctic summers 1995–1996 during the oceanographic cruise of the R/V Italica. One was recovered beneath the present-day Antarct...
Published in: | Geochemistry, Geophysics, Geosystems |
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Main Authors: | , |
Other Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
AGU
2004
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Subjects: | |
Online Access: | http://hdl.handle.net/2122/2890 https://doi.org/10.1029/2004GC000810 |
Summary: | We present new paleomagnetic data for Quaternary u channel samples from two deep-sea gravity cores from the west Pacific Southern Ocean. These cores were recovered in the Antarctic summers 1995–1996 during the oceanographic cruise of the R/V Italica. One was recovered beneath the present-day Antarctic Polar Front (Anta 95-157), and the other is from within the Antarctic Zone (Anta 96-16). The Matuyama- Brunhes boundary has been identified in both cores, with a longer history of sedimentation available in Anta 96-16. A detailed rock magnetic study shows discrete occurrences of ice rafted debris, which were influenced by 100-kyr orbital eccentricity variations during the Brunhes Chron. This is consistent with the main periodicity of the climate system since the mid-Pleistocene climate transition. Published Q12011 2.2. Laboratorio di paleomagnetismo JCR Journal reserved |
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