Results 31 to 40 of about 517 (105)
Reconstructing Holocene geomagnetic field variation: new methods, models and implications [PDF]
, 2014 Reconstructions of the Holocene geomagnetic field and how it varies on millennial timescales are important for understanding processes in the core but may also be used to study long-term solar-terrestrial relationships and as relative dating tools for ...
Hill, M +4 more
core +1 more source
Geophysical Research Letters, 2005 [1] Arrighi et al. [2004] (hereinafter referred to as AR2004) recently reported paleomagnetic directions gathered from Stromboli volcano by using the unconventional ‘‘large sample method’’ (LSM). These directions are partly different and have smaller confidence cones than those previously reported by Speranza et al.
Fabio Speranza +2 more
openaire +1 more source
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 3, March 2026.Abstract The study of variations in geomagnetic field intensity over time and space is crucial to understand the evolution of the geodynamo and its interactions with the Earth's surface. In this work, we introduce the SAGEOMAG (South America GEOMAGnetic) database, a comprehensive and updated repository of geomagnetic field intensity records derived ...
Victor J. O. Marum +6 more
wiley +1 more source
Bayesian Inference of Local Paleosecular Variation From Sparse Paleomagnetic Data
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 2, February 2026.Abstract We introduce a novel Bayesian method to construct local paleosecular variation (PSV) curves. By modeling the geomagnetic field as a Gaussian process, global models can be incorporated as informative prior distributions. Because we use Hamiltonian Monte‐Carlo methods, complex age distributions resulting for example from radiocarbon calibration ...
M. A. Schanner, R. Meyer, L. V. de Groot
wiley +1 more source
Brunhes Paleomagnetic Directions and Paleointensities From Northern Hainan Island
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 1, January 2026.Abstract Paleomagnetic studies typically assume that the long‐term, time‐averaged geomagnetic field behaves as a geocentric axial dipole (GAD). While paleodirectional data over the past five million years generally agree with GAD predictions, mid‐to‐low latitude paleointensity records fail to show GAD, with high values from Hawaii.
Mengqing Wang +7 more
wiley +1 more source
Cooling Rate Correction in Paleointensity Experiments on Archeological and Geological Materials
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 10, October 2025.Abstract Obtaining accurate estimates of the absolute intensity of the past geomagnetic field (paleointensity) is one of the major challenges in paleomagnetic research. Paleointensity data are typically determined by replacing the ancient thermoremanent magnetization (TRM) acquired in an unknown field with a laboratory TRM acquired under controlled ...
Ron Shaar
wiley +1 more source
Timing of volcanism along the northern East Pacific Rise based on paleointensity experiments on basaltic glasses [PDF]
, 2004 Samples from two adjacent and contrasting ridge segments along the East Pacific Rise were measured for their magnetic paleointensity in order to further explore the possibilities of dating very young volcanic samples using secular variations in the Earth'
Carlut, Julie +4 more
core +2 more sources
Journal of Geophysical Research: Solid Earth, Volume 130, Issue 8, August 2025.Abstract Correlation of ignimbrite units at polygenic calderas is mandatory for the reconstruction of caldera‐forming events and proper identification of their eruption dynamics. However, ignimbrites erupted at different times from the same caldera can display similarities in composition and lithology that can hamper proper correlation of outcrops ...
Arianna Beatrice Malaguti +5 more
wiley +1 more source
GEOMAGIA50.v3: 2. A new paleomagnetic database for lake and marine sediments [PDF]
, 2015 Background: GEOMAGIA50.v3 for sediments is a comprehensive online database providing access to published paleomagnetic, rock magnetic, and chronological data obtained from lake and marine sediments deposited over the past 50 ka.
Brown, Maxwell C +8 more
core +1 more source