Results 1 to 10 of about 4,431,213 (212)
Paleosecular Variation and the Time‐Averaged Geomagnetic Field Since 10 Ma [PDF]
Geochemistry, Geophysics, Geosystems, 2021 Investigations into long‐term geomagnetic variations provide useful information regarding paleomagnetic field behavior. In this study, we assess the latitudinal structure of paleosecular variation (PSV) and the time‐averaged field (TAF) for the Brunhes ...
Wellington P. deOliveira +10 more
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Geochemistry, Geophysics, GeosystemsPaleosecular variation analysis is a primary tool for characterizing ancient geomagnetic behavior and its evolution through time. This study presents a new high‐quality directional data set, paleosecular variation of the Paleogene (PSVP), with and ...
Y. A. Engbers +8 more
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Geochemistry, Geophysics, Geosystems, 2022 Statistical studies of paleosecular variation (PSV) are used to infer the structure and behavior of the geomagnetic field. This study presents a new database, paleosecular variation of the Miocene (PSVM), of high‐quality directional data from the Miocene
Y. A. Engbers, R. K. Bono, A. J. Biggin
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Paleosecular variation recorded by Quaternary lava flows from Guadeloupe Island. [PDF]
Sci Rep, 2018 AbstractPaleomagnetic directional data were obtained from fourteen 0 to 2 Ma old lava flows at Basse-Terre Island (Guadeloupe, French West Indies). Five reversed polarity flows are consistent with their Matuyama age between 1.6–1.5 Ma and 875–790 ka while the ages of the other nine normal polarity units tie them to the Olduvai subchron and the Brunhes ...
Ricci J, Carlut J, Valet JP.
europepmc +6 more sources
Geochemistry, Geophysics, Geosystems, 2021 Studying paleosecular variation (PSV) can provide unique insights into the average morphology of the geomagnetic field and the operation of the geodynamo.
B. T. Handford +3 more
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A Holocene Paleosecular Variation Record From the Northwestern Ross Sea, Antarctica
Geochemistry, Geophysics, GeosystemsWe present a mid‐to‐late Holocene record of relative paleosecular variation from the Ross Sea region of Antarctica. The 6,700‐year‐long record of inclination, declination, and relative paleointensity from a marine sediment core collected near Cape Adare ...
Olivia J. Truax +7 more
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Insights into pre-reversal paleosecular variation from stochastic models [PDF]
Frontiers in Earth Science, 2015 To provide insights on the paleosecular variation of the geomagnetic field and the mechanism of reversals, long time series of the dipolar magnetic moment are generated by two different stochastic models, known as the domino model and the inhomogeneous ...
Klaudio ePeqini +2 more
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Paleomagnetic techniques can date speleothems with high concentrations of detrital material [PDF]
Scientific Reports, 2022 The U-series dating of young and ‘dirty’ speleothems is challenging due to difficulties in assessing the isotopic composition of detrital contaminants and the low-abundance of 230Th generated in situ.
Elisa M. Sánchez-Moreno +6 more
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Full‐Vector Paleosecular Variation Curve for the Azores: Enabling Reliable Paleomagnetic Dating for the Past 2 kyr [PDF]
Journal of Geophysical Research: Solid Earth, 2021 AbstractFor archeomagnetic dating, high‐quality directional and intensity paleosecular variation curves are needed. The Azores Archipelago in the mid‐Atlantic Ocean provides a wealth of volcanic products erupted during the Holocene, making it an ideal location to (1) gather paleomagnetic data from well dated lava flows and (2) construct a paleosecular ...
Annemarieke Béguin +2 more
openaire +3 more sources
New Archeomagnetic Directional Records From Iron Age Southern Africa (ca. 425–1550 CE) and Implications for the South Atlantic Anomaly [PDF]
Geophysical Research Letters, 2018 The paucity of Southern Hemisphere archeomagnetic data limits the resolution of paleosecular variation models. At the same time, important changes in the modern and historical field, including the recent dipole decay, appear to originate in this region ...
Vincent J. Hare +7 more
doaj +2 more sources