Results 21 to 30 of about 2,674,606 (201)
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
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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
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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
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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
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Frontiers in Earth Science, 2022 The Corinth basin (Greece) is a young continental rift that recorded cyclic basin paleoenvironment variations (i.e., marine to lacustrine) caused by glacio-eustatic sea level fluctuations during its initial connection to the global oceans.
Marco Maffione, Emilio Herrero-Bervera
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Geosystems and Geoenvironment, 2023 High- and low-latitude climatic processes in the North Pacific Ocean are important components of the global climate system. For example, the interplay among North Pacific atmospheric circulation, ocean circulation, and biological productivity affects ...
Yi Zhong +10 more
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Origin of orbital periods in the sedimentary relative paleointensity records
Physics of the Earth and Planetary Interiors, 2008 Abstract Orbital cycles with 100 kyr and/or 41 kyr periods, detected in some sedimentary normalized remanence (relative paleointensity) records by power spectral analysis or wavelet analysis, have been attributed either to orbital forcing of the geodynamo, or to lithologic contamination.
Department of Geological Sciences, University of Florida Williamson Hall, P.O. Box 112120, Gainesville, FL 32611, United States ( host institution ) +2 more
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A paleomagnetic record in loess–paleosol sequences since late Pleistocene in the arid Central Asia
Earth, Planets and Space, 2018 Geomagnetic excursions during Brunhes epoch have been brought to the forefront topic in paleomagnetic study, as they provide key information about Earth’s interior dynamics and could serve as another tool for stratigraphic correlation among different ...
Guanhua Li +5 more
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Geochemistry, Geophysics, Geosystems, 2015 We present a general theory for the acquisition of natural remanent magnetizations (NRM) in sediment under the influence of (a) magnetic torques, (b) randomizing torques, and (c) torques resulting from interaction forces.
R. Egli, X. Zhao
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Paleomagnetic Constraint of the Brunhes Age Sedimentary Record From Lake Junín, Peru
Frontiers in Earth Science, 2020 Normalized remanence, a proxy for relative geomagnetic paleointensity, along with radiocarbon and U-Th age constraints, facilitates the generation of a well-constrained chronology for sediments recovered during International Continental Scientific ...
Robert G. Hatfield +9 more
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