Results 91 to 100 of about 4,304 (252)

Paleointensity Estimates from Italian Kilns

Journal of geomagnetism and geoelectricity, 1986
Paleointensity estimates from three archeological sites are reported; field magnitudes (F) of 71.3±3.7μT and 75.3±1.2μT are obtained from two 1st century A. D. kilns, whilst a 3rd century B. C. kiln yields F=79.7±1.3μT. The present geomagnetic field in the area has a magnitude of 44.7μT.
openaire   +2 more sources

Evidence for Missing Geomagnetic Reversals From Geomagnetic Reversal Frequency Model Using Adaptive Kernel Density Estimation

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract The existence of missing geomagnetic reversals has been proposed, with potential for new magnetostratigraphic age controls. We estimate geomagnetic reversal frequency from 0 to 155 Ma using adaptive‐bandwidth kernel density estimation (AKDE) to evaluate data sparseness and to assess how reversal frequency changes when recently identified ...
Yutaka Yoshimura, Masakazu Fujii, Hideitsu Hino, Shotaro Akaho, Satoshi Kuriki, Osamu Ishizuka, Toshitsugu Yamazaki, Hyeon‐Seon Ahn, Tesfaye Kidane, Yuhji Yamamoto, Yo‐ichiro Otofuji   +10 more
wiley   +1 more source

Martin J. Aitken (1922-2017) [PDF]

, 2018
No abstract ...
Sanderson, David
core  

Reconstructing Late Pleistocene to Prehistorical Holocene Geomagnetic Field Variations From La Palma Lava Flows (Canary Islands, Spain): Unraveling Viscous Components

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 2, February 2026.
Abstract We present new vector paleomagnetic data from 13 radiometrically dated lava‐flows in southern La Palma (Canary Islands) spanning from 1 to 56 ka, which covers most of the Late Pleistocene to prehistoric Holocene volcanic record in the island.
Eva Vernet, Manuel Calvo‐Rathert, Ángel Carrancho, Yuhji Yamamoto, Lidia Rodríguez‐Méndez, Josep M. Parés, Vicente Soler   +6 more
wiley   +1 more source

A brief review of single silicate crystal paleointensity: rock-magnetic characteristics, mineralogical backgrounds, methods and applications

Earth, Planets and Space
Single silicate crystals hosting tiny magnetic inclusions are remarkable targets to study the paleointensities of the Earth and extraterrestrial samples. Since the pioneering work done in late 1990s, paleointensity studies using various silicate minerals
Chie Kato, Yoichi Usui, Masahiko Sato
doaj   +1 more source

Characteristics of Natural Remanence Records in Fine‐Grained Particles Returned From Asteroid Ryugu

Journal of Geophysical Research: Planets, Volume 131, Issue 2, February 2026.
Abstract Particles collected from the asteroid Ryugu by the Hayabusa2 spacecraft offer a unique opportunity to investigate the magnetic record of the primitive solar system, as any terrestrial magnetic contamination is minimal and can be accounted for.
Masahiko Sato, Yuki Kimura, Tadahiro Hatakeyama, Tomoki Nakamura, Satoshi Okuzumi, Sei‐ichiro Watanabe, Seiji Sugita, Satoshi Tanaka, Shogo Tachibana, Hisayoshi Yurimoto, Takaaki Noguchi, Ryuji Okazaki, Hikaru Yabuta, Hiroshi Naraoka, Kanako Sakamoto, Toru Yada, Masahiro Nishimura, Aiko Nakato, Akiko Miyazaki, Kasumi Yogata, Masanao Abe, Tatsuaki Okada, Tomohiro Usui, Makoto Yoshikawa, Takanao Saiki, Fuyuto Terui, Satoru Nakazawa, Yuichi Tsuda   +27 more
wiley   +1 more source

Decadal‐Scale In Situ Scanning of a Stalagmite From Southwest China Reveals Blake Geomagnetic Excursion Structure

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract We present a decadal‐scale paleomagnetic analysis of a stalagmite collected from Shuixi Cave, southwest China, spanning 89−123 ka. Our findings include: (a) Magnetite is the dominant magnetic mineral, and paleomagnetic directions can be obtained via demagnetization; (b) Magnetic scanning at 0.1‐mm resolution captures key magnetic features ...
Zhongshan Shen, Youwei Li, Liang Yi, Huafeng Qin, Jian Wang, Yibing Li, Hai Cheng   +6 more
wiley   +1 more source

A record of a stable transitional VGP in a Pliocene lava flow sequence from the Lesser Caucasus

Earth, Planets and Space
A paleomagnetic and paleointensity study has been performed on 28 basaltic flows from a sequence in the Lesser Caucasus. Two radiometric determinations yielded 3.45 ± 0.23 Ma in its lower and 3.43 ± 0.19 Ma in its upper part. Paleomagnetic determinations
Manuel Calvo-Rathert, Elisa Sánchez-Moreno, Emilio Herrero-Bervera, Georg Vashakidze, Juan Morales, Avto Goguitchaichvili, Jesús Solé, Nayeli Pérez-Rodríguez, Manana Kavsadze   +8 more
doaj   +1 more source

Sedimentation rates in the Makarov Basin, central Arctic Ocean: A paleomagnetic and rock magnetic approach [PDF]

, 2001
Three long sediment cores from the Makarov Basin have been subjected to detailed paleomagnetic and rock magnetic analyses. Investigated sediments are dominated by normal polarity including short reversal excursions, indicating that most of the sediments ...
Aksu, Bleil, Bleil, Bonhommet, Channell, Channell, Channell, Clark, Coles, Darby, Denham, Dominik Weiel, Frederichs, Gard, Gillot, Grantz, Gubbins, Guyodo, Hayashida, Heidi Kassens, Jackson, Jakobsson, Jokat, Kirschvink, Knies, Laj, Langereis, Liddicoat, Lovlie, Lund, Mangerud, Merril, Mienert, Morris, Nils Nørgaard-Pedersen, Norbert R. Nowaczyk, Nowaczyk, Nowaczyk, Nowaczyk, Nowaczyk, Nowaczyk, Nowaczyk, Quidelleur, Reimnitz, Robert F. Spielhagen, Rüdiger Stein, Schneider, Schubert, Scott, Smith, Spielhagen, Stein, Stein, Stoner, Stuiver, Stuiver, Sweeney, Tauxe, Tauxe, Thomas W. Frederichs, Volker, Weber   +61 more
core   +1 more source

Effects of Aging on Magnetic Mineralogy of Natural Volcanic Glass: Implications for Geomagnetic Paleointensity Recorders

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 1, January 2026.
Abstract Natural volcanic glasses are well represented in the geologic record, and typically contain near‐ideal single‐domain particles required for standard Thellier‐type absolute paleointensity experiments. Young (<∼50–100 ka) glasses have been demonstrated to reliably record Earth's magnetic field.
Julie A. Bowles, Fatimah Abdulghafur, Sebastian Fearn, Vera Soltes   +3 more
wiley   +1 more source