Results 11 to 20 of about 354 (102)

New Archeomagnetic Directional Records From Iron Age Southern Africa (ca. 425-1550 CE) and Implications for the South Atlantic Anomaly [PDF]

Geophysical Research Letters, Volume 45, Issue 3, Page 1361-1369, 16 February 2018., 2018
The paucity of Southern Hemisphere archeomagnetic data limits the resolution of paleosecular variation models. At the same time, important changes in the modern and historical field, including the recent dipole decay, appear to originate in this region ...
Huffman T. N., Huffman T. N., Huffman T. N., John A. Tarduno, Main M., Main M., Michael Watkeys, Munyaradzi Manyanga, Phenyo C. Thebe, Richard K. Bono, Rory D. Cottrell, Thomas Huffman, Vincent J. Hare   +12 more
core   +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.
A Chauvin, A Genevey, A Jackson, A M Soler-Arechalde, A S Genevey, D Gubbins, E Thellier, G McIntosh, J Bowles, J M W Fox, J Morales, J Morales, J-P Valet, L Néel, M G’omez-Paccard, M J Aitken, M Korte, M Korte, M Kovacheva, M Kovacheva, M Perrin, R S Coe, R S Coe, Y Gallet, Y Gallet, Y Yu   +25 more
core   +3 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   +2 more sources

Magnetic properties and archeointensity determination on Pre-Columbian pottery from Chiapas, Mesoamerica [PDF]

Earth, Planets and Space, 2009
Abstract As part of the effort to establish an archeointensity variation curve for Mesoamerica, 13 archeologically well-identified pottery samples belonging to the Ocozocoautla site (Chiapas) were studied. Analyzed samples consist of ‘ofrenda type’ pottery fragments found in several caves. Three archeological intervals are involved: 450-100 B.
A Chauvin, A Genevey, C McCabe, C W Weiant, D D Bryant, D Dunlop, E A Schumann, E M Shook, E Thellier, H Bőhnel, H Bőhnel, I Zananiri, J Bowles, J Clark, J Morales, J Morales, K A Dixon, L Tauxe, M J Aitken, M Korte, M W McElhinny, P A Selkin, P T Culbert, R Coe, R M Adams, R S Coe, S Gonzalez, S S Lee, S Yang, T Lee, T Nagata, V Bucha   +31 more
core   +3 more sources

Paleointensity Study on the Holocene Surface Lavas on the Island of Hawaii Using the Tsunakawa–Shaw Method [PDF]

Frontiers in Earth Science, 2018
Investigating volcanic paleointensity during the Holocene is important for linking archeointensity and sedimentary paleointensity. Across the globe, the island of Hawaii is one of the most studied subaerial locations.
Yuhji Yamamoto, Ryo Yamaoka
doaj   +3 more sources

Archeointensity study on baked clay samples taken from the reconstructed ancient kiln: implication for validity of the Tsunakawa-Shaw paleointensity method [PDF]

Earth, Planets and Space, 2015
In 1972, a reconstruction experiment of a kiln had been done to reproduce an excavated kiln of the seventh century in Japan. Baked clay samples were taken from the floor surface and −20 cm level, and they have been stored after determinations of the paleomagnetic directions by partial alternating field demagnetizations.
Masayuki Torii, Nobuyoshi Natsuhara, Yuhji Yamamoto   +2 more
core   +3 more sources

Triaxe archeointensity analysis

Physics of the Earth and Planetary Interiors, 2022
Since 2004, numerous archeomagnetic intensity data have been obtained using the vibrating sample magnetometer Triaxe, which measures full-vector magnetization directly at high temperatures, in either an applied or zero field. Satisfactory comparisons have been made between Triaxe intensity data and results derived from more conventional Thellier ...
Gallet, Yves, Le Goff, Maxime, Genevey, Agnès   +2 more
openaire   +1 more source

New archeointensity data from NW Argentina (1300–1500 CE) [PDF]

Physics of the Earth and Planetary Interiors, 2019
A good characterization of the geomagnetic field strength at centennial to millennial time scales in the Southern Hemisphere is particularly crucial to disentangle the long-term evolution of the South Atlantic Anomaly (SAA), an intriguing geomagnetic feature currently observed at the Earth’s surface.
Gomez-Paccard, Miriam, Chauvin, Annick, Albeck, M.E., E, Zaburlín, M.A., A, Basso, D.M., M, Pavon-Carrasco, F.J., Osete, Maria Luisa, Campuzano, S. A.   +7 more
openaire   +4 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

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

Stochastic modelling of regional archaeomagnetic series [PDF]

, 2014
SUMMARY We report a new method to infer continuous time series of the declination, inclination and intensity of the magnetic field from archeomagnetic data.
Bouligand, C., Gillet, N., Hellio, G., Jault, D.   +3 more
core   +10 more sources