Results 21 to 30 of about 34,130 (243)
Tracking Subsurface Active Weathering Processes in Serpentinite
Geophysical Research Letters, 2021 We conducted a novel study to capture the on‐going advancement of mineral weathering within a serpentinite formation by using an integrated approach of multi‐scale quantitative rock magnetic analyses and nano‐resolution geochemical imaging analyses.
Masako Tominaga +7 more
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The identification and biogeochemical interpretation of fossil magnetotactic bacteria [PDF]
, 2008 Magnetotactic bacteria, which most commonly live within the oxic-anoxic transition zone (OATZ) of aquatic environments, produce intracellular crystals of magnetic minerals, specifically magnetite or greigite.
Kirschvink, Joseph L., Kopp, Robert E.
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Magnetic parameters as proxies for anthropogenic pollution in water reservoir sediments from Mexico: an interdisciplinary approach [PDF]
, 2020 We assess the element pollution level of water reservoir sediments using environmental magnetism techniques as a novel approach. Although “La Purísima” Water Reservoir is an important source for multiple activities (e.g.
Böhnel, Harald N. +6 more
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Geochemistry, Geophysics, Geosystems, 2023 We address in situ serpentinization and mineral carbonation processes in oceanic lithosphere using integrated field magnetic measurements, rock magnetic analyses, superconducting quantum interference device (SQUID) microscopy, microtextural observations,
Masako Tominaga +5 more
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Exchange interactions in transition metal oxides: The role of oxygen spin polarization [PDF]
, 2017 Magnetism of transition metal (TM) oxides is usually described in terms of the Heisenberg model, with orientation-independent interactions between the spins.
Katsnelson, M. I. +3 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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Eos, Transactions American Geophysical Union, 1971 Work in rock magnetism during the last 4 years in the United States has been concentrated on several important intrinsic problems, the solutions of which are needed to answer some of the larger questions now being raised in paleomagnetism. The questions include whether it is feasible to measure variations in geomagnetic field intensity in rocks as old ...
Subir Banerjee, Allan Cox
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Formation of magnetic minerals at hydrocarbon-generation conditions [PDF]
, 2015 In this paper, we report the pyrolysis and formation of magnetic minerals in three source rock samples from the Wessex Basin in Dorset, southern England.
Abubakar, R. +6 more
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Rock and mineral magnetism / W. O´Reilly
Geofísica Internacional, 1985 Este libro sobre magnetismo de rocas y minerales esta escrito por el Dr. William O'Reilly, Senior Lecturer del Departamento de Geofísica y Física Planetaria de la Escuela de Física, Universidad de Newcastle uponTyne (Gran Bretaña).
J. Urrutia Fucugauchi
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Intelligent identification of logging cuttings based on deep learning
Energy Reports, 2022 In oil and gas exploration, rock sample identification is a basic and important work. At present, the methods of rock sample identification mainly include gravity and magnetism, well logging, earthquake, remote sensing, electromagnetism, geochemistry ...
Huijia Wang
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