Results 51 to 60 of about 5,877 (230)

Bounded influence magnetotelluric response function estimation [PDF]

open access: yes, 2004
Author Posting. © Blackwell, 2004. This article is posted here by permission of Blackwell for personal use, not for redistribution. The definitive version was published in Geophysical Journal International 157 (2004): 988–1006, doi:10.1111/j.1365-246X ...
Thomson, David J., Chave, Alan D.
core   +1 more source

Meshfree modelling of magnetotelluric and controlled-source electromagnetic data for conductive earth models with complex geometries

open access: yesFrontiers in Earth Science
Geophysical electromagnetic survey methods are particularly effective in locating conductive mineral deposits or mineralization zones in a mineral resource exploration.
Jianbo Long
doaj   +1 more source

MATE: An Analysis Tool for the Interpretation of Magnetotelluric Models of the Mantle

open access: yesGeochemistry, Geophysics, Geosystems, 2020
Interpretation of electrical conductivity anomalies observed in magnetotelluric models provides an important opportunity to understand the nature of the lithospheric mantle and its dynamics.
Sinan Özaydın, Kate Selway
doaj   +1 more source

Arc Heat Flow and Magmatic Heat Budgets

open access: yesReviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract We evaluate hydrothermal heat loss from 11 volcanic‐arc segments (∼6,000 km of arc length, ∼10% of the global total), motivated by the observation that much magmatic heat ultimately crosses the land surface as heated aqueous fluid. Heat loss takes place by volcanic eruption, geothermal heat conduction to the surface, fumarolic (vapor ...
S. E. Ingebritsen   +7 more
wiley   +1 more source

Heterogeneous crust and upper mantle across southern Kenya and the relationship to surface deformation as inferred from magnetoteluric imaging. [PDF]

open access: yes, 2007
We have used magnetotelluric data imaging to determine the resistivity structure across southern Kenya and our results suggest the presence of a buckled blocky or segmented lithosphere across the region.
Meju, Maxwell, Sakkas, V.
core  

Properties of the geoelectric structure that promote the detectionof electrotelluric anomalies: the case of Ioannina, Greece

open access: yesAnnals of Geophysics, 2001
The reliable detection and identification of electrotelluric anomalies that could be considered as precursory phenomena of earthquakes become fundamental aspects of earthquake prediction research.
J. P. Makris
doaj   +1 more source

A Unified Vector Electromagnetic Framework for Ionospheric Scintillation and Polarization Effects in GNSS

open access: yesRadio Science, Volume 61, Issue 6, June 2026.
Abstract The ionosphere imposes coupled amplitude, phase, and polarization distortions on trans‐ionospheric Global Navigation Satellite System (GNSS) signals, reflecting the structure and dynamics of electron‐density irregularities. Classical weak‐scatter theory provides a mature framework for interpreting amplitude and phase scintillation, but these ...
T. Durgonics, S. S. Beeck
wiley   +1 more source

Magnetotelluric studies in Grass Valley, Nevada [PDF]

open access: yes, 1979
A program of detailed magnetotelluric soundings was initiated in 1974 in Green Valley, Nevada, as part of the Lawrence Berkeley Laboratory's major study of techniques for geothermal exploration in north central Nevada.
Oppliger, G.   +3 more
core   +1 more source

Quality Control of Magnetotelluric Impedance Inversion via Self‐Supervised Learning Based on Data Continuity of Nyquist Diagrams

open access: yesGeophysical Prospecting, Volume 74, Issue 5, June 2026.
ABSTRACT Magnetotelluric (MT) data are often contaminated by electromagnetic (EM) noise, making quality control (QC) essential for reliable inversion. Conventional manual time‐domain QC processes are labour‐intensive, and some noise inevitably remains after processing, necessitating complementary processing in the frequency domain to address the ...
Hanjoon Park   +5 more
wiley   +1 more source

A Schwarz Method for the Magnetotelluric Approximation of Maxwell’s Equations

open access: yes, 2020
The magnetotelluric approximation of the Maxwell’s equations is used to model the propagation of low frequency electro-magnetic waves in the Earth’s subsurface, with the purpose of reconstructing the presence of mineral or oil deposits.
Ronald D. Haynes   +5 more
core   +1 more source

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