Results 41 to 50 of about 34,130 (243)
Analysis of wasp-waisted hysteresis loops in magnetic rocks
, 2011 The random-field Ising model of hysteresis is generalized to dilute magnets and solved on a Bethe lattice. Exact expressions for the major and minor hysteresis loops are obtained.
D. J. Dunlop +4 more
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Sedimentary Iron Cycling and the Origin and Preservation of Magnetization in Platform Carbonate Muds, Andros Island, Bahamas [PDF]
, 2007 Carbonate muds deposited on continental shelves are abundant and well-preserved throughout the geologic record because shelf strata are difficult to subduct and peritidal carbonate units often form thick, rheologically strong units that resist ...
Bosak, Tanja +8 more
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Geochemistry, Geophysics, Geosystems, 2020 Three‐dimensional geometries of silicate‐hosted magnetic inclusions from the Harcus intrusion, South Australia have been determined using focused‐ion‐beam nanotomography (FIB‐nt). By developing an effective workflow, the geometries were reconstructed for
Even S. Nikolaisen +3 more
doaj +1 more source
A Feasibility Study of Microbialites as Paleomagnetic Recorders
Frontiers in Earth Science, 2021 Microbialites–layered, organosedimentary deposits–exist in the geologic record and extend back in deep time, including all estimated times of inner core nucleation.
Ji-In Jung, Julie A. Bowles
doaj +1 more source
Earth, Planets and Space, 2019 Pure magnetite experiences a first-order phase transition (the Verwey transition) near 120–125 K wherein the mineral’s symmetry changes from cubic to monoclinic.
Anna K. Lindquist +4 more
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Rock magnetic and geochemical evidence for authigenic magnetite formation via iron reduction in coal-bearing sediments offshore Shimokita Peninsula, Japan (IODP Site C0020) [PDF]
, 2017 Sediments recovered at Integrated Ocean Drilling Program (IODP) Site C0020, in a fore‐arc basin offshore Shimokita Peninsula, Japan, include numerous coal beds (0.3–7 m thick) that are associated with a transition from a terrestrial to marine ...
Clyde, William C. +6 more
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Geochemistry, Geophysics, Geosystems, 2023 This study aims to elucidate the control of source‐to‐sink processes on the sediment dynamics of a complex mesotidal tropical estuarine system using rock magnetic, sedimentological, mineralogical, and geochemical methods.
Firoz Badesab +11 more
doaj +1 more source
Paleomagnetism and rock magnetism as tools for volcanology [PDF]
, 2022 Geoffrey A. Lerner +3 more
openalex +1 more source
The use of high frequency microwaves in absolute palaeomagnetic intensity experiments
Frontiers in Earth Science, 2023 The Microwave Palaeointensity System at the University of Liverpool has developed, over 30 years, into the current third generation version; a combined 14 GHz microwave resonant cavity and superconducting quantum interference device magnetometer ...
Simon Lloyd +7 more
doaj +1 more source
Interplay of Chemical Bonding and Magnetism in Fe_4N, Fe_3N, Fe_2N
, 1998 Using spin density functional theory we have carried out a comparative study of chemical bonding and magnetism in Fe_4N, Fe_3N and Fe_2N. All of these compounds form close packed Fe lattices, while N occupies octahedral interstitial positions.
Bader +19 more
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