(Table 1) Magnetic properties of sediments from ODP Hole 166-1007B

A detailed rock magnetic study was conducted on the top six cores (above 57.5 meters below seafloor) at Site 1007. The calcareous nannofossil biostratigraphy assigns the studied intervals to an age ranging from early Pleistocene to Holocene. We found two significant conversion points in the Pleistoc...

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Bibliographic Details
Main Authors: Arai, Kohsaku, Sato, Tokiyuki
Format: Dataset
Language:English
Published: PANGAEA 2000
Subjects:
166-1007B
Anhysteretic remanent magnetization/saturation isothermal remanent magnetization ratio
ARM
Intensity
per unit volume
DEPTH
sediment/rock
DRILL
Drilling/drill rig
DSDP/ODP/IODP sample designation
IRM
Joides Resolution
Kappabridge
AGICO KLY-3S
Leg166
Magnetic susceptibility
North Atlantic Ocean
NRM
Ocean Drilling Program
ODP
Sample code/label
SQUID magnetometer 2G model 760R
S-ratio (hematite/magnetite)
North Atlantic
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.798406
https://doi.org/10.1594/PANGAEA.798406
Description
Summary:A detailed rock magnetic study was conducted on the top six cores (above 57.5 meters below seafloor) at Site 1007. The calcareous nannofossil biostratigraphy assigns the studied intervals to an age ranging from early Pleistocene to Holocene. We found two significant conversion points in the Pleistocene based on isothermal remanent magnetization (IRM) acquisition and on alternating field demagnetization of anhysteretic remanent magnetization and IRM. These conversion points correlate strongly with changes in sedimentation rate and lithology. We conclude that the paleomagnetic signals reflect changes of rate of sediment supply and of paleoenvironment on the western edge of the Great Bahama Bank.

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