Results 21 to 30 of about 33,747 (294)
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
openaire +1 more source
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.
core +1 more source
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
doaj +1 more source
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
doaj +1 more source
Early Cretaceous absolute geomagnetic paleointensities from Córdoba province (Argentina) [PDF]
, 2006 We present here new paleointensity and geochronology results from Early Cretaceous volcanic rocks of Sierra Chica de Cordoba (Argentina). The new K-Ar isotopic ages of 5 samples range from 136 to 122 Ma.
Alva-Valdivia, Luis M. +5 more
core +1 more source
Earth and Space Science, 2020 Mineral magnetism is proved as a sensitive method of pedogenesis by numerous studies. However, formation pathways of magnetic minerals and subsequent magnetic response are quite different under different climate.
Tingping Ouyang +5 more
doaj +1 more source
Jurnal Fisika Flux, 2013 Abstrak : Peridotite rocks are ultra-alkaline rocks that igneous rocks which high in mineral content of FeO, and also a magnetic mineral. Each rock type has specific properties and characteristics are manifested in the magnetic field in magnetic ...
Sudarningsih Sudarningsih +2 more
doaj +3 more sources