Results 1 to 10 of about 198 (83)

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   +3 more sources

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

Earth, 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, Yuhji Yamamoto, Masao Ohno, Yoshihiro Kuwahara, Shuichi Kameda, Tadahiro Hatakeyama   +5 more
doaj   +4 more sources

Low Geomagnetic Field Intensity in Southern China 6,000 Years Ago

Geophysical Research Letters
The West Pacific Anomaly (WPA), a low geomagnetic field anomaly observed in the 16th to 18th centuries, represents a recently recognized and complex feature of Earth's magnetic field.
Xin Luo, Jiabo Liu, Huapei Wang, Maximilian Schanner, Yuan Zhang, Peng Xie, Jigen Tang, Peng Han, Quan Li, Fei Han, Xiaowei Chen, Chen Wen, Wen Zhong, Yufan Hu, Qingsong Liu   +14 more
doaj   +3 more sources

First Full Vector Archeomagnetic Data From Northern Mexico

Geochemistry, 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, M. Perrin, G. Hervé, A. Hernàndez Cardona, L. M. Alva‐Valdivia, R. Cruz Antillón   +5 more
doaj   +2 more sources

First archeointensity results from Portuguese potteries (1550-1750 AD) [PDF]

Earth, Planets and Space, 2009
Abstract Geomagnetic field variations at archeomagnetic timescales can be obtained from well-dated heated structures and archeological potsherds. Here, we present the first archeointensity results obtained on Portuguese ceramics (1550 to 1750 AD) collected at Brazilian archeological sites.
Hartmann, Gelvam A., Trindade, Ricardo I. F., Goguitchaichvili, Avto, Etchevarne, Carlos, Morales, Juan, Afonso, Marisa C.   +5 more
core   +3 more sources

Archeointensity of the Four Corners Region of the American Southwest

Geochemistry, 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, L. Tauxe, E. Blinman, A. Genevey   +3 more
doaj   +4 more sources

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

Geofísica 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, A. Goguitchaichvili, J. Morales, B. Aguilar Reyes, J. M. López-Téllez, J. Urrutia Fucugauchi   +5 more
doaj   +6 more sources

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 [PDF]

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   +3 more sources

Analyzing the geomagnetic axial dipole field moment over the historical period from new archeointensity results at Bukhara (Uzbekistan, Central Asia)

Physics of the Earth and Planetary Interiors, 2021
Abstract Since the mid-19th century, direct measurements of both intensity and directions of the Earth's magnetic field have been available, allowing an accurate determination of its spatio-temporal variations. Prior to this time, between ∼1600 and 1840, only direct directional measurements are available.
Troyano, Marie, Gallet, Yves, Genevey, Agnès, Pavlov, Vladimir, Fournier, Alexandre, Lagroix, France, Niyazova, Makhsuma, Mirzaakhmedov, Dzhamal   +7 more
core   +3 more sources

The cooling‐rate effect on microwave archeointensity estimates [PDF]

Geophysical Research Letters, 2013
AbstractNew microwave (MW) paleointensity data on historical bricks from Northeast Brazil presented a bias toward higher fields when compared to previous cooling‐rate corrected double‐heating paleointensity estimates; the same relates to the previously reported values for pottery from Southwestern Pacific islands. A simple theoretical approach suggests
Wilbor Poletti, Gelvam A. Hartmann, Mimi J. Hill, Andrew J. Biggin, Ricardo I. F. Trindade   +4 more
openaire   +2 more sources