Results 21 to 30 of about 896,696 (247)

Retrieving lithospheric magnetisation distribution from magnetic field models [PDF]

open access: yesGeophysical Journal International, 2019
Summary We investigate to which extent the radially averaged magnetisation of the lithosphere can be recovered from the information content of a spherical harmonic model of the generated magnetic field when combined with few simple hypotheses.
Lesur, V, Vervelidou, F
openaire   +5 more sources

Tracing Recycled Crustal Materials in the Subcontinental Lithospheric Mantle Using Thallium Isotopes

open access: yesGeophysical Research Letters, 2022
Here we report the first set of thallium (Tl) isotope data in alkaline rocks from the North China Craton to constrain the nature of recycled materials in the metasomatized subcontinental lithospheric mantle.
Qing‐Feng Mei   +4 more
doaj   +1 more source

Global High-Resolution Magnetic Field Inversion Using Spherical Harmonic Representation of Tesseroids as Individual Sources

open access: yesGeosciences, 2020
In this study, we present a novel approach combining the advantages of tesseroids in representing geophysical structures though their voxel-like discretization features with a spherical harmonic representation of the magnetic field.
Eldar Baykiev   +2 more
doaj   +1 more source

Carbon Speciation and Solubility in Silicate Melts

open access: yesGeophysical Monograph Series, Page 179-194., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Natalia Solomatova   +2 more
wiley  

+1 more source

A Spherical Harmonic Model of Earth's Lithospheric Magnetic Field up to Degree 1050

open access: yesGeophysical Research Letters, 2021
Detailed mapping of the Earth's magnetic field brings key constraints on the composition, dynamics, and history of the crust. Satellite and near‐surface measurements detect different length scales and are complementary.
E. Thébault   +3 more
semanticscholar   +1 more source

Front Matter

open access: yesGeophysical Monograph Series, Page i-xiv., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
wiley  

+1 more source

Fifth‐generation lithospheric magnetic field model from CHAMP satellite measurements [PDF]

open access: yesGeochemistry, Geophysics, Geosystems, 2007
Six years of low‐orbit CHAMP satellite magnetic measurements have provided an exceptionally high‐quality data resource for lithospheric magnetic field modeling and interpretation. Here we describe the fifth‐generation satellite‐only magnetic field model MF5. The model extends to spherical harmonic degree 100.
Maus, S.   +6 more
openaire   +4 more sources

Use of along-track magnetic field differences in lithospheric field modelling [PDF]

open access: yesGeophysical Journal International, 2014
We demonstrate that first differences of polar orbiting satellite magnetic data in the along-track direction can be used to obtain high resolution models of the lithospheric field. Along-track differences approximate the north–south magnetic field gradients for non-polar latitudes.
Kotsiaros, Stavros   +2 more
openaire   +2 more sources

An equivalent source method for modelling the global lithospheric magnetic field [PDF]

open access: yesGeophysical Journal International, 2014
We present a new technique for modelling the global lithospheric magnetic field at Earth’s surface based on the estimation of equivalent potential field sources. As a demonstration we show an application to magnetic field measurements made by the CHAMP satellite during the period 2009–2010 when it was at its lowest altitude and solar activity was quiet.
L. K. Kother   +3 more
semanticscholar   +5 more sources

CM5, a pre-Swarm comprehensive geomagnetic field model derived from over 12yr of CHAMP, Ørsted, SAC-C and observatory data [PDF]

open access: yes, 2017
A comprehensive magnetic field model named CM5 has been derived from CHAMP, Ørsted and SAC-C satellite and observatory hourly-means data from 2000 August to 2013 January using the Swarm Level-2 Comprehensive Inversion (CI) algorithm.
Kuvshinov, Alexey   +3 more
core   +4 more sources

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