Results 51 to 60 of about 317 (130)

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

Geophysical Research Letters, Volume 52, Issue 9, 16 May 2025.
Abstract 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. However, the history of the WPA is still uncertain due to a scarcity of paleointensity data in Southeast Asia.
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
wiley   +1 more source

Directional changes of the geomagnetic field in West Africa: Insights from the metallurgical site of Korsimoro [PDF]

, 2016
This work shows the first archeomagnetic directions from Western Africa measured on 32 iron smelting kilns dated between 650 and 1800 AD. The archeological excavation of the vast metallurgical site of Korsimoro established the existence of four distinct ...
Donadini, Fabio, El Kateb, Akram, Kapper, Lisa, Serneels, Vincent   +3 more
core  

Modeling the Impacts of Antarctic Sea Ice Decline: Responses of Atmospheric Dynamics

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 9, 16 May 2025.
Abstract Rapidly changing climate in polar regions not only impacts their local environments but also influences weather patterns in tropical and mid‐latitude regions. A key indicator of these changes is the accelerated decline of sea ice in polar areas.
Yasemin Ezber, Deniz Bozkurt, Mehmet Ilicak   +2 more
wiley   +1 more source

Resolving the Interpretation of Magnetic Coercivity Components From Backfield Isothermal Remanence Curves Using Unmixing of Non‐Linear Preisach Maps: Application to Loess‐Paleosol Sequences

Journal of Geophysical Research: Solid Earth, Volume 129, Issue 6, June 2024.
Abstract Unmixing of remanent magnetization curves, either isothermal remanent magnetization (IRM) or backfield IRM, is widely used in rock magnetic and environmental magnetic studies to discriminate between magnetic coercivity components of different origins. However, the wide range of physical properties of natural magnetic particles gives rise to an
Cristian Necula, Ioan Lascu, Cristian Panaiotu, Daniela Gheorghe   +3 more
wiley   +1 more source

Geomagnetic Field Intensity During the First Millennium BCE From Royal Judean Storage Jars: Constraining the Duration of the Levantine Iron Age Anomaly

Geochemistry, Geophysics, Geosystems, Volume 25, Issue 5, May 2024.
Abstract The rich and extensively studied archaeological record of the Near East provides an opportunity to develop a comprehensive archaeomagnetic dataset for exploring the behavior of the geomagnetic field with high precision. The Levantine archaeomagnetic curve (LAC) project is an ongoing effort to develop a continuous high‐resolution geomagnetic ...
E. Hassul, R. Shaar, Y. Vaknin, A. Agnon, Y. Gallet, U. Leibner, R. Sabar, L. Freud, D. Sandhaus, O. Lipschits   +9 more
wiley   +1 more source

Late Cretaceous – early Eocene counterclockwise rotation of the Fueguian Andes and evolution of the Patagonia-Antarctic Peninsula system

, 2016
International audienceThe southernmost Andes of Patagonia and Tierra del Fuego present a prominent arc-shaped structure: the Patagonian Bend. Whether the bending is a primary curvature or an orocline is still matter of controversy. New paleomagnetic data
Arriagada, Cesar, Hervé, Francisco, Poblete, Fernando, Poujol, Marc, Ramírez de Arellano, Cristobal, Roperch, Pierrick, Ruffet, Gilles   +6 more
core   +3 more sources

Test Excavations at the Culebra Creek Site, 41BX126, Bexar County, Texas [PDF]

, 2001
Archaeological test excavations were undertaken at 4IBX126 on Culebra Creek to offset the impact from a proposed Texas Department of Transportation (TxDOT) highway improvement project on Loop 1604 in northwest Bexar County.
Bousman, C. Britt, Cargill, Diane A., Leach, Jeff D., Nickels, David L.   +3 more
core   +2 more sources

Core-flow constraints on extreme archeomagnetic intensity changes

Earth and Planetary Science Letters, 2014
Recent studies (Ben-Yosef et al., 2009; Shaar et al., 2011) propose extreme archeomagnetic intensity changes (termed spikes) in the range ~4-5μT/year c.a. 1000 BC in the Near East, around 40 to 50 times larger than values typical of the present-day. In order to investigate whether such extreme changes are consistent with a model of the source region of
Livermore, Philip W., Fournier, Alexandre, Gallet, Yves   +2 more
openaire   +2 more sources

Updating the Matlab tool archaeo_dating for archeomagnetic dating

, 2023
The 28th IUGG General Assembly (IUGG2023) (Berlin 2023)
Serrano, M., Campuzano, S., Pavón-Carrasco, F.   +2 more
openaire   +2 more sources

First Full‐Vector Archeomagnetic Data From Central Asia (3 BCE to 15 CE Centuries): Evidence for a Large Non‐Dipole Field Contribution Around the First Century BCE

Journal of Geophysical Research: Solid Earth, Volume 129, Issue 2, February 2024.
Abstract Unraveling the short‐term behavior of the Earth's past geomagnetic field at regional scales is crucial for understanding its global behavior and, thus, the dynamics of the deep Earth. In this context, obtaining accurate full‐vector geomagnetic field records from regions where archeomagnetic data are absent becomes essential.
R. Bonilla‐Alba, M. Gómez‐Paccard, F. J. Pavón‐Carrasco, S. A. Campuzano, E. Beamud, V. Martínez‐Ferreras, J. M. Gurt‐Esparraguera, E. Ariño‐Gil, F. Martín‐Hernández, M. L. Osete   +9 more
wiley   +1 more source