Why are geomagnetic excursions not always recorded in sediments? Constraints from post-depositional remanent magnetization lock-in modelling
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Roberts, Andrew; Winklhofer, Michael
Description
Many geomagnetic excursions have been documented during the Brunhes Chron. However, high-resolution paleomagnetic studies of sediments often provide evidence of few (if any) excursions. We have investigated the reasons for this observation by modelling the post-depositional remanent magnetization (PDRM) lock-in process. A cubic lock-in function produces more rapid lock-in compared to linear and exponential functions proposed in the literature. We therefore used a cubic function to model...[Show more]
Collections | ANU Research Publications |
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Date published: | 2004 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/24266 |
Source: | Earth and Planetary Science Letters |
DOI: | 10.1016/j.epsl.2004.07.040 |
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01_Roberts_Why_are_geomagnetic_excursions_2004.pdf | 1.2 MB | Adobe PDF | Request a copy |
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