Results 21 to 30 of about 517 (105)

Characteristics of the Matuyama‐Brunhes Magnetic Field Reversal Based on a Global Data Compilation

Journal of Geophysical Research: Solid Earth, Volume 128, Issue 2, February 2023., 2023
Abstract Magnetic field reversals are irregular events in Earth's history when the geomagnetic field changes its polarity. Reversals are recorded by spot and continuous remanent magnetization data collected from lava flows and marine sediments, respectively.
Ahmed Nasser Mahgoub, Monika Korte, Sanja Panovska   +2 more
wiley   +1 more source

Short-Term Magnetic Field Variations From the Post-depositional Remanence of Lake Sediments

Frontiers in Earth Science, 2018
Paleomagnetic records obtained from lake sediments provide important constraints on geomagnetic field behavior. Secular variation recorded in sediments is used in global geomagnetic field models, particularly over longer timescales when archeomagnetic ...
Andreas Nilsson, Neil Suttie, Mimi J. Hill   +2 more
doaj   +1 more source

Solar activity during the Holocene: the Hallstatt cycle and its consequence for grand minima and maxim [PDF]

, 2016
Cosmogenic isotopes provide the only quantitative proxy for analyzing the long-term solar variability over a centennial timescale. While essential progress has been achieved in both measurements and modeling of the cosmogenic proxy, uncertainties still ...
Gallet, Y., Hulot, G., Kovaltsov, G. A., Lopes, F., Usoskin, I. G.   +4 more
core   +2 more sources

The effects of aliasing and lock-in processes on palaeosecular variation records from sediments [PDF]

, 2000
Studies of sedimentary records of palaeointensity variation report periods as long as 50 kyr. Archaeointensity data show geomagnetic periods of 2 kyr with large ampli-tudes.
Gubbins, D., Teanby, N.
core   +1 more source

A new Holocene record of geomagnetic secular variation from Windermere, UK [PDF]

, 2017
Paleomagnetic secular variation (PSV) records serve as valuable independent stratigraphic correlation and dating tools for marine and terrestrial sediment sequences, and enhance knowledge of geomagnetic field dynamics.
Avery, Rachael S., Bull, Jonathan M., Cotterill, Carol J., Croudace, Ian W., Fielding, J. James, Kemp, Alan E.S., Pearce, Richard B., Xuan, Chuang   +7 more
core   +1 more source

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

, 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   +1 more source

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  

Archaeointensity study of five Late Bronze Age fireplaces from Corent (Auvergne, France) [PDF]

, 2016
International audienceRecent excavations at Corent (France) unearthed a vast Late Bronze Age settlement. The high density of fireplaces especially highlights it. The present study focuses on the archaeomagnetic study of five fireplaces.
Aidona, Ben-Yosef, Chauvin, Ertepinar, Gallet, Gallet, Gallet, Gallet, Genevey, Genevey, Gómez-Paccard, Gómez-Paccard, Gómez-Paccard, Hervé, Hervé, Hervé, Hill, Hong, Kapper, Kovacheva, Kovacheva, Ledger, Milcent, Milcent, Moutmir, Pavón-Carrasco, Pavón-Carrasco, Prévot, Schnepp, Shaar, Tema, Thellier   +31 more
core   +3 more sources

The impact of geomagnetic spikes on the production rates of cosmogenic 14C and 10Be in the Earth's atmosphere [PDF]

, 2015
We seek corroborative evidence of the geomagnetic spikes detected in the Near East ca. 980 BC and 890 BC in the records of the past production rates of the cosmogenic nuclides 14C and 10Be.
Alexandre Fournier, Bard, Beer, Ben-Yosef, Cooke, Courtillot, Fraser-Smith, Gallet, Gallet, Gennady A. Kovaltsov, Heikkilä, Holme, Hulot, Ilya Usoskin, Kovaltsov, Kovaltsov, Licht, Livermore, Mandea, McCracken, Muscheler, Philip W. Livermore, Reimer, Roberts, Roth, Ruth, Shaar, Steinhilber, Usoskin, Usoskin, Usoskin, Usoskin, Wessel, Yiou, Yves Gallet   +34 more
core   +3 more sources

First paleomagnetic results of mid-to late Holocene sediments from Lake Issyk-Kul (Kyrgyzstan): Implications for paleosecular variation in central Asia [PDF]

, 2012
We present new paleomagnetic and rock magnetic data from mid and late Holocene sediments recovered in two gravity cores (C087 and C142a) from Lake Issyk-Kul (central Asia), for which independent radiocarbon-based age models are available.
Giralt, Santiago, Gómez-Paccard, Miriam, Larrasoaña, Juan C., Roberts, Andrew P.   +3 more
core   +1 more source