Results 1 to 10 of about 354 (102)

First Full Vector Archeomagnetic Data From Northern Mexico

open access: yesGeochemistry, Geophysics, Geosystems, 2021
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 ...
B. Tchibinda Madingou   +5 more
doaj   +2 more sources

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

open access: yesGeochemistry, 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   +7 more
doaj   +2 more sources

Magnetic characteristics and archeointensity determination on Mesoamerican Pre-Columbian Pottery from Quiahuiztlan, Veracruz, Mexico [PDF]

open access: yesGeofísica Internacional, 2008
We report a detailed archeomagnetic investigation on pre-Columbian potteries from Quiahuiztlan, Veracruz, from ~900 AD to 1521 AD. Archeological samples analyzed by modern magnetic techniques carry a stable univectorial thermoremanent magnetization under
M. Calvo Rathert   +5 more
doaj   +6 more sources

Archeointensity of the Four Corners Region of the American Southwest

open access: yesGeochemistry, Geophysics, Geosystems, 2020
New paleointensity experiments were conducted using the IZZI protocol (a variation on the Thellier‐Thellier method) on 289 specimens from 54 baked pottery fragments collected from four archeological sites in the American Southwest. Anisotropy experiments
S. A. Jones   +3 more
doaj   +4 more sources

The necessity of data availability in maintaining the value and longevity of paleointensity results [PDF]

open access: yesFrontiers 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
doaj   +3 more sources

Updated Iberian Archeomagnetic Catalogue: New Full Vector Paleosecular Variation Curve for the Last Three Millennia [PDF]

open access: yesGeochemistry, Geophysics, Geosystems, 2018
In this work, we present 16 directional and 27 intensity high‐quality values from Iberia. Moreover, we have updated the Iberian archeomagnetic catalogue published more than 10 years ago with a considerable increase in the database.
A. Molina‐Cardín   +19 more
doaj   +7 more sources

Archeointensity estimates of a tenth-century kiln: first application of the Tsunakawa–Shaw paleointensity method to archeological relics

open access: yesEarth, Planets and Space, 2018
Paleomagnetic information reconstructed from archeological materials can be utilized to estimate the archeological age of excavated relics, in addition to revealing the geomagnetic secular variation and core dynamics.
Yu Kitahara   +5 more
doaj   +3 more sources

Modeling geomagnetic spikes: the Levantine Iron Age anomaly

open access: yesEarth, 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   +2 more
doaj   +1 more source

Intensity of the geomagnetic field in Europe for the last 3 ka: Influence of data quality on geomagnetic field modeling

open access: yesGeochemistry, Geophysics, Geosystems, 2014
One of the main challenges of paleomagnetic research is to obtain high‐resolution geomagnetic field intensity reconstructions. For the last millennia, these reconstructions are mostly based on archeomagnetic data.
Francisco Javier Pavón‐Carrasco   +4 more
doaj   +1 more source

A comprehensive paleomagnetic study from the last Plinian eruptions of Popocatepetl volcano: absolute chronology of lavas and estimation of emplacement temperatures of PDCs

open access: yesEarth, Planets and Space, 2019
Three lava flows (Buenavista, Xalitzintla and Nealtican) and pyroclastic density currents (Lorenzo and Pink Pumice) from two Popocatepetl Plinian eruptions were sampled for paleomagnetic dating.
Nayeli Pérez-Rodríguez   +3 more
doaj   +1 more source

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