Results 81 to 90 of about 602 (196)

The extended Dedicated Lithospheric field model (xDLFI) and its interpretation in terms of global magnetic crustal thickness

International audienceDetailed 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.
Thébault, Erwan, Hulot, Gauthier
core   +2 more sources

DEEP CRUSTAL STRUCTURE AND MODEL OF NEORCHAEAN EVOLUTION OF THE NORTH AMERICAN CRATON

Геодинамика и тектонофизика, 2018
The structure of the Archaean crust of the North America has been studied based on the synthesis of geolo‐ gical and geophysical data, including seismic sections along LITHOPROBE Geotransects, magnetic and gravity anomaly maps, and seismic tomography ...
M. V. Mints, T. B. Afonina
doaj   +1 more source

A study of spectral methods of estimating the depth to the bottom of magnetic sources from near-surface magnetic anomaly data

, 2007
Based on a critical evaluation of several different spectral magnetic depth determination techniques on areally large synthetic layered and random magnetization models, we recommend the following considerations in the usage of the methods as necessary ...
Ravat, D., Nicolosi, I., Chiappini, M., Pignatelli, A.   +3 more
core   +1 more source

Application of Singular Spectrum Analysis (SSA) for Delineating Geomagnetic and Lithospheric Signatures Associated With M7.6 Japan Earthquake

Earth and Space Science
In this paper, Singular Spectral Analysis (SSA) is applied to the geomagnetic field to delineate signatures from different sources, such as geomagnetic variability and lithospheric processes.
Amrita Yadav, Jayashree Bulusu, Essam Ghamry, Dedalo Marchetti, A. P. Dimri   +4 more
doaj   +1 more source

Research on the characteristics of the Maerkang MS6.0 earthquake based on the joint analysis of annual changes in gravity and magnetic fields

地震科学进展
Using multi-period ground gravity and geomagnetic observation data from 2017 to 2021 in western Sichuan, the MS6.0 earthquake in Maerkang was analyzed.
Dong Liu, Yufei Zhao, Yong Zhang, Jiangpei Huang, Yuqin Wu   +4 more
doaj   +1 more source

Moho Depth Disposition of the Contiguous United States: A Multi‐Modal Data Driven Approach

Journal of Geophysical Research: Machine Learning and Computation
Precise determination of Moho depth is essential for understanding lithospheric deformation, lower crustal rheology, and crust‐mantle interactions. This study employs a Random Forest Regressor (RFR) model to predict Moho depth across the contiguous ...
Ramees R. Mir, Sameem Makhdoomi, Hui Huang, Zhitu Ma, S. Mostafa Mousavi   +4 more
doaj   +1 more source

GeoForschungsZentrum Anomaly Magnetic Map (GAMMA): A candidate model for the World Digital Magnetic Anomaly Map

, 2007
International audienceThe World Digital Magnetic Anomaly Map (WDMAM) is an ongoing effort toward the mapping of worldwide available aeromagnetic data.
Hamoudi, M., Mandea, M., V. Lesur, M. Hamoudi, Lesur, V., M. Mandea, E. Thébault, Thébault, E.   +7 more
core   +1 more source

Estimating the Earth's lithospheric magnetization, thickness and magnetic field for SH degrees 1 to 50

International audienceDetailed mapping of the Earth's lithospheric magnetic field provides key constraints on the composition, dynamics and history of the crust. This field can be mapped using satellite and near-surface measurements to build a model over
Thébault, Erwan, Hulot, Gauthier
core   +1 more source

Morphological Evolution of Impact Craters and Associated Gravity Anomalies: New Perspectives From Numerical Modeling

Earth and Space Science
Hyper‐velocity impacts on planetary surfaces lead to impact craters whose morphology evolves due to exogenous factors such as atmospheric processes, as well as endogenous factors including tectonic and metamorphism.
Lounis Ait Oufella, Yoann Quesnel, Vincent Godard, Anthony Lagain   +3 more
doaj   +1 more source

Intraplate Lithospheric Deformation and the Formation of a Large Volcanic Regions

, 2022
American Geophysical Union Fall Meeting, 12-16 December 2022, ChicagoLarge igneous systems are formed either in areas of thin lithosphere at or near plate boundaries or by mantle-melting anomalies in intraplate settings with comparatively thicker ...
Gómez de la Peña, L., Ranero, César R., Prada, Manel, Ugalde, Arantza, Grevemeyer, Ingo, Neri, Alejandra, Cadenas, Patricia, Merino Pérez, Irene, Jiménez-Tejero, C.E.   +8 more
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