Results 51 to 60 of about 166 (116)

Special issue “Recent advances in geo-, paleo- and rock-magnetism”

, 2019
The special issue of Earth, Planets and Space “Recent Advances in Geo-, Paleo- and Rock-Magnetism” was motivated by presentations given in Session S-EM18 “General Contributions in Geomagnetism, Paleomagnetism, and Rock magnetism” held during the Japan ...
Oda, Hirokuni, Lascu, Ioan, Xuan, Chuang, Tarduno, John A., Fukuma, Koji, Yamamoto, Yuhji   +5 more
core   +1 more source

Recent developments in Archeomagnetism

, 2015
Since the pioneering studies in archeomagnetism in the second half of the 20th century, the number of archeomagnetic studies has increased exponentially.
Campuzano, S. A., Martín-Hernández, F., Pavón-Carrasco, F. J., McIntosh, G., Osete, M. L.   +4 more
core   +1 more source

Rock magnetic characterization of archeological pottery and natural materials from the Kiya petroglyph site (Russia): an insight into post-burial alteration

Evolving Earth
While processes that lead to recording magnetic information in stone and ceramic artifacts have been extensively investigated, the preservation of archeomagnetic signal after the artifacts have been abandoned has received much less attention.
Alexandra Abrajevitch, Andrey S. Samynin
doaj   +1 more source

Tephra Deposits of the Tajogaite Volcano, La Palma: Changes of Magnetic Properties Through the 2021 Eruption

Geophysical Research Letters, Volume 52, Issue 15, 16 August 2025.
Abstract We report the results of a rockmagnetic study of tephra material produced by the Tajogaite volcano, in La Palma (Canary Islands), during 19 September through 13 December 2021. Our magnetic analysis reveals a change of rock magnetic properties through the eruption.
J. M. Parés, V. Soler, M. F. Bógalo, M. Calvo, A. Carrancho, E. Vernet   +5 more
wiley   +1 more source

Geomagnetic and Archeomagnetic Jerks: Where Do We Stand? [PDF]

Eos, Transactions American Geophysical Union, 2009
The Earth's magnetic field is generated mainly by a self‐sustaining dynamo in the fluid outer core. Known as the core or main field, the dynamo's magnetic field is not constant but changes with time, a phenomenon denoted as secular variation. Unfortunately, no common agreement exists about the definition of secular variation: While some use this term ...
Mandea, M., Olsen, N.
openaire   +2 more sources

Assessing the Reliability of the Pseudo‐Thellier Estimates in Fired Ceramics and Source Clays

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 7, July 2025.
Abstract The geomagnetic field's intensity is key to understanding the Earth's core dynamics and their surface impacts. While the Thellier–Thellier method remains the standard for recovering absolute paleointensity from baked materials, it is time‐consuming and may alter magnetic mineralogy due to heating cycles. The pseudo‐Thellier method offers a non‐
Wilbor Poletti, Mikaelly G. Rocha, Plínio Jaqueto, Gelvam A. Hartmann, Grasiane L. Mathias, Daniele Brandt, Ricardo I. F. Trindade, Paulo Maximiano   +7 more
wiley   +1 more source

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

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