Results 31 to 40 of about 346 (179)
Establishing a Lunar Origin for Paleomagnetic Records in Apollo Samples
Geophysical Research Letters, 2023 Numerous paleomagnetic studies attribute the magnetization preserved within Apollo samples to an ancient dynamo. However, other works propose that lunar rocks were instead magnetized by either transient impact‐related magnetic fields on the Moon or by ...
S. M. Tikoo, J. Jung
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Geochemistry, Geophysics, Geosystems, Volume 27, Issue 7, July 2026.Abstract A central challenge in the paleomagnetic study of meteorites is to characterize their diverse remanence carriers. Here, we develop a machine‐learning assisted workflow that combines multi‐scale (mm to nm) and multi‐dimensional (2D‐3D) microscopy to build a comprehensive picture of ferromagnetic mineralogy in the C2 ungrouped carbonaceous ...
Richard J. Harrison +6 more
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New contributions to the Early Pliocene geomagnetic field strength: Case study of southern Caucasus volcanics [PDF]
Geofísica Internacional, 2000 We carried out a Thellier paleointensity study on a ~ 3.8 My Pliocene lava flow succession from Georgia (southern Caucasus). Previous paleomagnetic studies on this succession revealed that eight consecutive lava flows record a reverse polarity direction ...
José Antonio González +4 more
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Geochemistry, Geophysics, Geosystems, 2014 Eruptive timing in mid‐ocean ridge systems is relatively poorly constrained, despite being an important variable in our understanding of many mid‐ocean ridge processes, including volcanic construction; magma recharge, flux, and storage; and the stability
Julie A. Bowles +5 more
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Geochemistry, Geophysics, Geosystems, 2021 High‐quality paleointensity data are essential for improving our understanding of the geomagnetic field; however, it is challenging to find materials that reliably record full vector magnetization going back in time.
Courtney J. Sprain +3 more
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Journal of Geophysical Research: Solid Earth, Volume 131, Issue 7, July 2026.Abstract Mid‐ocean ridges, the Earth's most extensive volcanic system, exhibit unique characteristics in sediment‐dominant environments. Thick sediment cover insulates the crust and channels fluid along pathways that can lead to the formation of distinct crustal alteration patterns, exceptionally large mineral deposits, and specialized chemosynthetic ...
Christopher Galley +8 more
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Paleointensity of the ancient Martian magnetic field [PDF]
Geophysical Research Letters, 2008 Mars today has no core dynamo magnetic field. However, the discovery of remanent magnetization in Martian meteorites and intense crustal magnetization suggests that Mars once had a global field. Here we present high resolution maps of the magnetic field of Martian meteorite ALH 84001.
Benjamin P. Weiss +4 more
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The Importance of Sample‐to‐Sensor Distance in Quantitative Micro(Paleo‐)Magnetic Analysis
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.Abstract Information on the past of Earth's magnetic field can be retrieved from magnetic grains in rock samples. Micromagnetic Tomography (MMT) is a recently developed method that uses magnetic surface scans from a Quantum Diamond Microscope (QDM) combined with the position of magnetic grains in rock samples to calculate the magnetic moments of those ...
Rosa A. de Boer +4 more
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Application of the pseudo-Thellier technique to a paleomagnetic record from lake El Trébol (Patagonia, Argentina) [PDF]
Geofísica Internacional, 2008 The pseudo-Thellier technique was applied to obtain relative paleointensity determinations using a sediment core from Lake El Trébol (Patagonia, Argentina).
M. A. E. Chaparro +4 more
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The First Archaeomagnetic Age at Tiwanaku and Implications for Dating Andean Metallurgical Furnaces
Archaeometry, Volume 68, Issue 3, Page 317-329, June 2026.ABSTRACT This paper presents the first archaeomagnetic dating at Tiwanaku (Andean Altiplano). We compared the geomagnetic field values recorded by a metallurgical furnace against an updated SHAWQ2k‐SH global model and a regional intensity curve, both of which include, for the first time, high‐quality intensity data from the Southern Hemisphere. Results
Judit del Río +6 more
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