Results 11 to 20 of about 188 (119)
Bias Corrected Estimation of Paleointensity (BiCEP): An Improved Methodology for Obtaining Paleointensity Estimates [PDF]
Geochemistry, Geophysics, Geosystems, 2021 Abstract The assumptions of paleointensity experiments are violated in many natural and archeological materials, leading to Arai plots which do not appear linear and yield inaccurate paleointensity estimates, leading to bias in the result.
Brendan J Cych +2 more
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Paleointensity database updated [PDF]
Eos, Transactions American Geophysical Union, 1998 The updated version of the paleointensity database will be included in the new package that should be released by Mike McElhinny in May 1998. The new version comprises 1692 data records from 115 references. The database tables are also available as ASCII and Excel files via an anonymous ftp site (ftp.dstu.
Mereille Perrin +2 more
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Paleointensity Database Updated and Upgraded [PDF]
Eos, Transactions American Geophysical Union, 2010 The global absolute paleointensity (PINT) database, sponsored by the International Association of Geomagnetism and Aeronomy, recently was updated with new data and published alongside a new queryable interface at http://earth.liv.ac.uk/pint/.Absolute paleointensity determinations are spot readings of the strength of the geomagnetic field at the time ...
Andrew John Biggin +2 more
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ThellierCoolPy: A Cooling‐Rate Correction Tool for Paleointensity Data [PDF]
Geochemistry, Geophysics, Geosystems, 2021 AbstractWe report a new approach of implementing cooling‐rate corrections in absolute ancient magnetic field intensity (paleointensity) studies. Nearly all methods of determining paleointensity estimates rely on rocks having recorded a thermoremanent magnetization (TRM), on cooling from above the rock’s constituent minerals’ Curie temperature ...
Adrian R. Muxworthy, Evelyn B. Baker
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Deriving confidence in paleointensity estimates [PDF]
Geochemistry, Geophysics, Geosystems, 2010 Determining the strength of the ancient geomagnetic field (paleointensity) can be time consuming and can result in high data rejection rates. The current paleointensity database is therefore dominated by studies that contain only a small number of paleomagnetic samples (n).
Paterson, Greig A. +2 more
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Bulk magnetic domain stability controls paleointensity fidelity [PDF]
Proceedings of the National Academy of Sciences, 2017 Significance The strength of the ancient geomagnetic field (paleointensity) is a key tool to observe the evolution of early Earth’s geodynamo, which provided an essential protective barrier for the emergence of life. However, paleointensity data are fraught with difficulties that make understanding the evolution of our planet more challenging.
Greig A. Paterson +3 more
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Paleointensity database provides new resource
Eos, Transactions American Geophysical Union, 1994 A global paleointensity database constructed from all published data based on volcanic rocks in geological time older than 0.03 Ma is now available and ready for use. It can be obtained from the authors as text files on a 3.5″ diskette in MS‐DOS or Macintosh format or via e‐mail. It includes not only major parameters, but also minor details that can be
Hidefumi Tanaka, Masaru Kono
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Eos, Transactions American Geophysical Union, 1989 Paleointensity is the variations in magnitude of the geomagnetic field in the near and remote past. Similar to paleodirectional studies, paleointensity research depends on the ability of a rock to preserve for a geologically long time the information related to the ambient magnetic field existing at the time the rock was formed.Paleointensity ...
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Behavior of paleointensity during the Paleogene [PDF]
Physics of the Earth and Planetary Interiors, 2014 Abstract Behavior of the intensity of geomagnetic field in the Paleogene was studied by the analysis of the sedimentary rocks of the Russian Plate. It is revealed that in the beginning of the Paleogene the variations of little-amplitude paleointensity (about 0.5 H 0 , where H 0 is the value of modern geomagnetic field taken as 40 μT) were ...
A.Yu. Kurazhkovskii +2 more
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Geochemistry, Geophysics, Geosystems, Volume 27, Issue 3, March 2026.Abstract Marine 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. Previous studies have demonstrated that the recording efficiencies of detrital and biogenic magnetite differ.
Kuang He +8 more
wiley +1 more source