Results 21 to 30 of about 166 (116)

SHARED RESEARCH FACILITIES "PETROPHYSICS, GEOMECHANICS AND PALEOMAGNETISM" OF THE SCHMIDT INSTITUTE OF PHYSICS OF THE EARTH RAS

Геодинамика и тектонофизика, 2022
Shared Research Facilities "Petrophysics, Geomechanics and Paleomagnetism", created based on actively developing divisions of the Schmidt Institute of Physics of the Earth RAS, has advanced research equipment and unique methods, which determines the ...
R. V. Veselovskiy, N. V. Dubinya, A. V. Ponomarev, I. V. Fokin, A. V. Patonin, A. M. Pasenko, A. M. Fetisova, M. A. Matveev, N. A. Afinogenova, D. V. Rud'ko, A. V. Chistyakova   +10 more
doaj   +1 more source

Correlation based time evolution of the archeomagnetic field [PDF]

Journal of Geophysical Research: Solid Earth, 2020
Abstract In a previous study, a new snapshot modeling concept for the archeomagnetic field was introduced (Mauerberger et al., 2020, https://doi.org/10.1093/gji/ggaa336 ).
Schanner, M., Mauerberger, S., Korte, M., Holschneider, M., Mauerberger, S.; 2 Applied Mathematics University of Potsdam Potsdam Germany, Korte, M.; 1 German Research Centre for Geosciences GFZ Section 2.3 Potsdam Germany, Holschneider, M.; 2 Applied Mathematics University of Potsdam Potsdam Germany   +6 more
openaire   +6 more sources

Synchronizing Geomagnetic Field Intensity Records in the Levant Between the 23rd and 15th Centuries BCE: Chronological and Methodological Implications

Geochemistry, Geophysics, Geosystems, 2020
Archeomagnetic records are an important source of information on the past behavior of the geomagnetic field. Frequently, however, coeval archeomagnetic intensity (archeointensity) datasets from nearby locations display significant discrepancies ...
Ron Shaar, Shlomit Bechar, Israel Finkelstein, Yves Gallet, Mario A. S. Martin, Yael Ebert, Jonathan Keinan, Lilach Gonen   +7 more
doaj   +1 more source

Modeling geomagnetic spikes: the Levantine Iron Age anomaly

Earth, Planets and Space, 2023
The Levantine Iron Age anomaly (LIAA) is a regional short-decadal geomagnetic strength field variation located at the Levantine region characterized by high intensities with maximum virtual axial dipole moments around 190 ZAm2. It has been constrained by
Pablo Rivera, F. Javier Pavón-Carrasco, María Luisa Osete   +2 more
doaj   +1 more source

ArchKalmag14k: A Kalman‐Filter Based Global Geomagnetic Model for the Holocene

Journal of Geophysical Research: Solid Earth, Volume 127, Issue 2, February 2022., 2022
Abstract We propose a global geomagnetic field model for the last 14 thousand years, based on thermoremanent records. We call the model ArchKalmag14k. ArchKalmag14k is constructed by modifying recently proposed algorithms, based on space‐time correlations. Due to the amount of data and complexity of the model, the full Bayesian posterior is numerically
M. Schanner, M. Korte, M. Holschneider
wiley   +1 more source

ThellierCoolPy: A Cooling‐Rate Correction Tool for Paleointensity Data

Geochemistry, Geophysics, Geosystems, Volume 22, Issue 12, December 2021., 2021
Abstract We 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
wiley   +1 more source

First Full Vector Archeomagnetic Data From Northern Mexico

Geochemistry, Geophysics, Geosystems, Volume 22, Issue 10, October 2021., 2021
Abstract Several regional secular variation curves of the geomagnetic field have been proposed for Mexico over the last millennia. Despite a fairly large number of archeomagnetic data, these curves remain imprecise because of an uneven quality and geographic distribution, with a lack of data in Northern Mexico.
B. Tchibinda Madingou, M. Perrin, G. Hervé, A. Hernàndez Cardona, L. M. Alva‐Valdivia, R. Cruz Antillón   +5 more
wiley   +1 more source

Further Evidence of High Intensity During the Levantine Iron Age Anomaly in Southwestern Europe: Full Vector Archeomagnetic Dating of an Early Iron Age Dwelling From Western Spain

Journal of Geophysical Research: Solid Earth, Volume 126, Issue 9, September 2021., 2021
Abstract We report an archeomagnetic study from the Early Iron Age archeological site of Cerro de San Vicente (Salamanca, Spain). The studied materials were sampled from one roundhouse and its central fireplace, a surrounding burnt floor, and slags with a twofold objective.
N. García‐Redondo, M. Calvo‐Rathert, Á. Carrancho, A. Goguitchaichvili, E. Iriarte, A. Blanco‐González, M. J. Dekkers, J. Morales‐Contreras, C. Alario‐García, C. Macarro‐Alcalde   +9 more
wiley   +1 more source

Magnetomineralogy of Archeomagnetic Materials.

Journal of geomagnetism and geoelectricity, 1996
A survey of the main magnetomineralogical characteristics of 92 archeomagnetic samples from 37 sites in Greece, Italy, North Africa, and China is presented. Coercive force spectra suggest that magnetite and/or titano-magnetite dominates both natural and laboratory remanences (NRM, ARM and IRM).
Evans, M. E., Jiang, L.
openaire   +2 more sources

The time-dependence of intense archeomagnetic flux patches [PDF]

Journal of Geophysical Research, 2011
[1] The long‐term temporal behavior of intense geomagnetic flux patches at the core‐mantle boundary and the relation with lower mantle lateral heterogeneity are under debate. We apply an algorithm to detect centers of intense flux patches and track their time‐evolution in a recent archeomagnetic field model in order to study the kinematics of such ...
Amit, Hagay, Korte, Monika, Aubert, Julien, Constable, Catherine, Hulot, Gauthier   +4 more
openaire   +4 more sources