Results 21 to 30 of about 778,745 (293)
Magnetic Mineralogy of Speleothems From Tropical-Subtropical Sites of South America
Frontiers in Earth Science, 2021 Fe-bearing minerals are a tiny fraction of the composition of speleothems. They have their origin in the karst system or are transported from the drainage basin into the cave.
Plinio Jaqueto +8 more
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A First‐Order Statistical Exploration of the Mathematical Limits of Micromagnetic Tomography
Geochemistry, Geophysics, Geosystems, 2022 The recently developed Micromagnetic Tomography (MMT) technique combines advances in high resolution scanning magnetometry and micro X‐ray computed tomography.
Frenk Out +4 more
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Geochemistry, Geophysics, Geosystems, 2020 We present new results on the conversion of pure, undoped synthetic ferrihydrite, wet‐annealed at pH 6.56 and 90°C without stabilizing ligands, to nanophase goethite, hematite, and an intermediate magnetic phase, nanophase maghemite.
Dario Bilardello +4 more
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Frontiers in Earth Science, 2018 Paleomagnetism of South American Jurassic/Cretaceous rocks has been troubled by elongated distributions of poles which has led to contrasting interpretations.
Dario Bilardello +3 more
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Geofísica Internacional, 1999 Las mediciones preliminares de propiedades magnéticas en muestras de un núcleo de 8.5 m. de longitud del lago Granfather (suroeste de Alaska), indican que la magnetización remanente de estos sedimentos reside en magnetita con comportamiento de ...
Pieter A. Vlag, Subir K. Banerjee
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Variations in the Magnetic Properties of Meteoritic Cloudy Zone
Geochemistry, Geophysics, Geosystems, 2020 Iron and stony‐iron meteorites form the Widmanstätten pattern during slow cooling. This pattern is composed of several microstructures whose length‐scale, composition and magnetic properties are dependent upon cooling rate.
Claire I. O. Nichols +7 more
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Investigating the utility of a high-temperature Thellier-style paleointensity experimental protocol
Earth, Planets and Space, 2021 High-quality data are vital to the research field of paleointensity, which has long suffered from poor-quality and/or sparse data. Previous paleointensity work has established that repeatedly heating specimens increases the opportunity for thermochemical
J. Michael Grappone +2 more
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Magnetic Vortex States in Small Octahedral Particles of Intermediate Titanomagnetite
Geochemistry, Geophysics, Geosystems, 2018 Fine particles of titanomagnetites (Fe3‐xTixO4, x > 0.5) in the pseudo‐single‐domain (PSD) size (0.5–20 μm) are important carriers of natural remanent magnetization in basalts.
E. Khakhalova +4 more
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Geochemistry, Geophysics, Geosystems, 2020 Realistic geometries of magnetite grains from the Stardalur volcano, Iceland, were obtained by Focused Ion Beam Scanning Electron Microscopy nanotomography. These magnetite grains are subdivided by oxidation‐exsolution lamellae of ilmenite.
G. W. terMaat +3 more
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