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A review of problems and progress in studies of satellite magnetic anomalies
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In this article, a review of studies performed during the MagSat project is conducted, taking into account questions of data availability, aspects of orbit attitude determination, ionospheric noise, a field model, and an anomaly field presentation.Abstract:
A review is conducted of studies performed during the Magsat project. The obtained data are considered, taking into account questions of data availability, aspects of orbit attitude determination, ionospheric noise, a field model, and an anomaly field presentation. Models for interpretation are discussed, giving attention to forward modeling, and equivalent layer inverse modeling. In an evaluation of rock property constraints, the magnetic bottom is discussed along with Curie points, metamorphism and magnetization, and the direction of magnetization.read more
Citations
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Curie-temperature depth estimation using a self-similar magnetization model
TL;DR: In this article, the authors derived the theoretical power spectrum due to a slab carved out of a self-similar magnetization distribution, which matches the power spectra of magnetic maps of South Africa and Central Asia for a selfsimilarity parameter of β = 4 and Curie temperature depths of 15 to 20 km.
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The Moho as a magnetic boundary revisited
Peter J. Wasilewski,M. A. Mayhew +1 more
TL;DR: In this article, the authors examined 400 globally distributed xenolith samples to determine whether continental regions are characterized by relatively magnetic crusts lying on relatively non-magnetic mantles, and the data indicated that a magnetic crustal layer overlies a nonmagnetic mantle much in the same manner as proposed by Jarchow and Thompson.
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Mars Observer magnetic fields investigation
Mario H. Acuña,John E. P. Connerney,Peter J. Wasilewski,Robert P. Lin,K. A. Anderson,C. W. Carlson,J. P. McFadden,D. W. Curtis,H. Rème,A. Cros,J. L. Médale,J. A. Sauvaud,Claude d’Uston,Siegfried Bauer,Paul A. Cloutier,M. Mayhew,Norman F. Ness +16 more
TL;DR: The magnetic field experiment designed for the Mars Observer mission will provide definitive measurements of the Martian magnetic field from the transition and mapping orbits planned for the MARS Observer as mentioned in this paper, which will investigate the nature of the magnetic field and the Mars-solar wind interaction, the mapping of crustal magnetic fields, and studies of the Mars ionosphere.
Journal ArticleDOI
Magnetization of lower crust and interpretation of regional magnetic anomalies: Example from Lofoten and Vesterålen, Norway
TL;DR: In this article, the effects of metamorphism upon magnetic mineralogy and magnetic properties of high-grade rocks, susceptibility-temperature relations and the Hopkinson effect, and petrologic sources of regional crustal magnetic anomalies are investigated.
Journal ArticleDOI
Three‐dimensional gravity and magnetic modeling of crustal indentation and wedging in the western Pyrenees‐Cantabrian Mountains
TL;DR: In this article, the complex crustal structure of the boundary zone between the Iberian and European plates, from the western Pyrenees to the Cantabrian Mountains, is probed by 3D gravity and magnetic modeling constrained by deep seismic profiles.
References
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Journal ArticleDOI
Magnetization changes caused by burial and uplift
TL;DR: Theoretical blocking curves for hematite and magnetite are given over temperature ranges from room temperatures to Curie temperature and over time scales from 1 second to 109 years as mentioned in this paper.
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Exposed cross-sections through the continental crust: implications for crustal structure, petrology, and evolution
TL;DR: In this paper, the authors concluded that the most prominent layering in the crust is not compositional but metamorphic, and that the continental crust is characterized by lateral and vertical heterogeneities of varying scale which are the apparent cause of the complex seismic reflections recorded by COCORP.
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Serpentinization: a review
TL;DR: The most common alteration assemblage produced by serpentinization of ultramafic rocks is: lizardite, chrysotile, magnetite±brucite±antigorite.
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The Moho as a magnetic boundary
TL;DR: Magnetic data for mantle derived rocks: peridtites from St Pauls rocks, dunite xenoliths from the kaupulehu flow in Hawaii, as well as peridolite, Dunite and eclogite Xenoid, from Roberts Victor, Dutoitspan, Kilbourne Hole, and San Carlos diatremes are presented in this article.