Results 11 to 20 of about 231 (169)
Geochemistry, Geophysics, GeosystemsAnisotropy of magnetic remanence (AMR) holds promise for quantifying relative paleointensity values from sedimentary rocks. A proof of concept was established for applied fields that exceeded the intensity of the geomagnetic field.
Felix K. Ostermeier +5 more
doaj +2 more sources
Geochemistry, Geophysics, GeosystemsMarine sediments contain magnetic mineral particles of detrital, biogenic and authigenic origin that record changes in the direction and intensity of the geomagnetic field over geological time.
Kuang He +8 more
doaj +2 more sources
Geochemistry, Geophysics, Geosystems, 2021 Relative abundance of magnetite originated from magnetotactic bacteria (magnetofossils) in sediments may influence relative paleointensity (RPI) estimations of the geomagnetic field, as some studies reported an inverse correlation between RPI and the ...
Kosuke Inoue +2 more
doaj +1 more source
Limitations in correlation of regional relative geomagnetic paleointensity [PDF]
Geochemistry, Geophysics, Geosystems, 2006 Time domain correlations of common features among relative paleointensity records from sedimentary cores are invaluable to paleomagnetism and paleoclimatology. Sediments with high accumulation rates might now provide millennial scale correlations of temporal variations in the geomagnetic dipole moment.
Mcmillan, D. G., Constable, C. G.
openaire +2 more sources
Intrinsic paleointensity bias and the long-term history of the geodynamo [PDF]
Science Advances, 2017 Marine Foucher +2 more
exaly +2 more sources
Frontiers in Earth Science, 2021 Non-carbonaceous abyssal fine-grained sediments cover vast parts of the North Pacific’s deep oceanic basins and gain increasing interests as glacial carbon traps.
Wanzhang Wang +7 more
doaj +1 more source
The necessity of data availability in maintaining the value and longevity of paleointensity results
Frontiers in Earth Science, 2014 Asserting the reliability of paleointensity estimates, or comparing relative reliabilities between vastly or subtly different results is a key challenge for paleointensity studies, which often leaves interpretations of these data rife with ambiguities ...
Greig A. Paterson
doaj +1 more source
Geochemistry, Geophysics, Geosystems, 2021 Continuous sedimentary records of paleomagnetic directional variability and relative paleointensity (RPI) provide valuable information on the evolution of the geodynamo while also facilitating stratigraphic correlation and age control.
R. G. Hatfield +2 more
doaj +1 more source
A comparison of different techniques for relative paleointensity
Geophysical Research Letters, 1998 Parallel relative paleointensity records that are supposed to display the same geomagnetic variations often show discrepancies. We compared various techniques of normalization with different parameters involving alternating fields (a.f.) and thermal demagnetization of sediment samples spanning the same period from the Indian and the Pacific oceans. The
Jean‐Pierre Valet, Laure Meynadier
openaire +1 more source
Relative paleointensity in sediments: A Pseudo‐Thellier Approach
Geophysical Research Letters, 1995 We present a method for normalizing sedimentary records for estimating relative paleointensity of the geomagnetic field, similar to that successfully used to obtain absolute paleointensity from thermally blocked remanences. It has the advantages that it is more effective in removing unwanted viscous remanence, thereby improving agreement among various ...
L. Tauxe, T. Pick, Y. S. Kok
openaire +1 more source