Results 61 to 70 of about 763 (162)
Slow True Polar Wander Around Varying Equatorial Axes Since 320 Ma
AGU AdvancesTrue polar wander (TPW), the rotation of the solid Earth relative to the spin axis, is driven by changes in the Earth's moment of inertia induced by mantle convection and may have influenced past climate and life. Long‐term TPW is typically inferred from
Bram Vaes, Douwe J. J. vanHinsbergen
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A New View of Long-Term Geomagnetic Field Secular Variation
Frontiers in Earth Science, 2018 This study carries out a statistical analysis of high-resolution PSV records for the last ~70 ka from three different regions of the Earth. We consider directional and intensity variability in each region on time scales of 103-105 years in order to ...
Steve P. Lund
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Геодинамика и тектонофизика, 2015 The tectonic and paleogeographic evolution of the Ural-Mongol belt between the cratons of Baltica, Siberia, and Tarim is the key to the formation of the Eurasian supercontinent during Paleozoic time, but the views on this complicated process remain very ...
Natalia M. Levashova +3 more
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Paleomagnetism‐Based Chronology of Holocene Lava Flows at Mt Ruapehu, Aotearoa New Zealand
Geochemistry, Geophysics, GeosystemsDating young lava flows is essential for understanding volcano's eruption frequency, yet challenging due to methodological limitations of commonly used dating techniques.
Pedro Doll +9 more
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BSGF - Earth Sciences BulletinA synthesis of more than 55 paleomagnetic studies yielding Tertiary primary or secondary magnetizations is used to evidence the rotations around a vertical axis since 40 Ma in the Western Alps and surrounding areas. In both external and internal zones of
Crouzet Christian +6 more
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Monkey fossils do not negate cosmogenic dating at Sterkfontein. [PDF]
Proc Natl Acad Sci U S A, 2023 Granger DE +6 more
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Paleomagnetism Near the North Magnetic Pole: A Unique Vantage Point for Understanding the Dynamics of the Geomagnetic Field and Its Secular Variations [PDF]
Oceanography, 2011 Along with the dramatic decrease in global geomagnetic field intensity, recent observations demonstrate that the geomagnetic field in the Arctic has dramatically changed over the last century.
Guillaume St-Onge, Joseph S. Stoner
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Eos, Transactions American Geophysical Union, 1988 In August 1987, in Vancouver, Canada, almost all of those who worked in the paleomagnetic group at the University College of Rhodesia and Nyasaland, Salisbury, Southern Rhodesia (now the University of Zimbabwe, Harare, Zimbabwe) were by chance attending the International Union of Geodesy and Geophysics meeting. For 8 years (1958–1966) the scientists in
openaire +1 more source
Obtaining High‐Resolution Magnetic Records From Speleothems Using Magnetic Microscopy
Geochemistry, Geophysics, GeosystemsSpeleothems are mineral deposits capable of recording detrital and/or chemical remanent magnetization at annual timescales. They can offer high‐resolution paleomagnetic records of short‐term variations in Earth's magnetic field, crucial for understanding
Cauê S. Borlina +12 more
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New paleomagnetic results from Neogene to Quaternary volcanic rocks of north of the Lake Van, Eastern Turkey. [PDF]
Sci Rep, 2023 Kayın S, İşseven T.
europepmc +1 more source