Results 61 to 70 of about 2,756 (207)

Three‐Dimensional Electrical Resistivity Characterization of Mountain Pass, California and Surrounding Region

Geochemistry, Geophysics, Geosystems, 2021
The Sulphide Queen carbonatite deposit at Mountain Pass in southeast California is a world class rare earth element (REE) resource. This study images electrical resistivity structure of the REE deposit and surrounding area to characterize resources under
J. R. Peacock, K. M. Denton, D. A. Ponce
doaj   +1 more source

Comparison of Geoelectric Fields Computed by the Complex Image, Magnetotelluric, and Finite‐Difference Time‐Domain Methods

Space Weather, Volume 24, Issue 3, March 2026.
Abstract It is important to be able to accurately predict geoelectric field behavior so that potential space weather hazards to large grounded infrastructure, such as electric power grids, smart grids, oil and gas pipelines, and railway systems, can be better understood.
Prashanna S. Paneru, Darcy Cordell, Jamesina J. Simpson, Mark B. Moldwin   +3 more
wiley   +1 more source

Stratigraphic Model of East Biak Based on Magnetotelluric Data

Journal of Mathematical and Fundamental Sciences, 2020
Biak Island is thought to have originated from the Australian Continental passive margin in the Mesozoic. This passive margin underwent tectonic collision to form the bedrock of Biak Island during the Paleogene.
Alviyanda Alviyanda, Gusti Muhammad Lucki Junursyah, Prihadi Sumintadireja   +2 more
doaj   +1 more source

Assessment of Extreme Storm and Cumulative Risks to the New Zealand Gas Pipeline Network From Space Weather

Space Weather, Volume 24, Issue 3, March 2026.
Abstract Space weather results in risks to gas pipelines in the form of both hazardous levels of pipe‐to‐soil potentials during extreme geomagnetic storms, and accumulated corrosion through less severe, but continuous geomagnetic activity. Here we report on calculations of pipe‐to‐soil potentials during a simulated extreme storm, using both direct ...
M. Ingham, T. Divett, M. Sigley, C. J. Rodger   +3 more
wiley   +1 more source

Deformation Controlled Fluid Mass‐Transfer Processes in Ancient Orogens

Geophysical Research Letters
Despite abundant empirical evidence, the details of coupled deformation and mass transfer processes within a framework of the crustal architecture of ancient orogens remains enigmatic.
G. J. Hill, B. M. Frieman, E. A. Roots, P. E. Wannamaker, V. Maris, R. Haugaard, J. Kamm, R. Klanica, S. Kovacikova, A. J. Calvert, J. A. Craven, R. S. Smith   +11 more
doaj   +1 more source

Magnetotelluric data processing: a case study [PDF]

, 1988
Magnetotelluric (MT) data collected simultaneously at one or more sites may be processed by a number of different methods. Such methods attempt to remove or suppress the effect of noise on the data channels. The desired results are accurate, unbiased and
D. Beamish, Gamble, Gamble, Goubau, Goubau, Hermance, J. M. Travassos, Pedersen, Sims   +8 more
core   +1 more source

Beyond magnetotelluric decomposition: Induction, current channeling, and magnetotelluric phases over 90° [PDF]

Journal of Geophysical Research: Solid Earth, 2003
This paper presents a method to examine strong current channeling affecting the magnetotelluric (MT) impedances, going beyond existing tensor decomposition schemes. The method allows recognition of elongated conductors in the crust and is also useful for a qualitative recognition of general three‐dimensional (3‐D) high‐conductivity anomalies.
Lezaeta, P., Haak, V.
openaire   +4 more sources

Thick Crust at Earth's Slowest Spreading Ridge: 3D Gravity Insights From Eurasian Basin, Arctic Ocean

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract The Eurasian Basin of the Arctic Ocean opened by ultraslow spreading along the Gakkel Ridge, yet crustal thickness has remained poorly constrained due to sparse seismic data. We present a new basin‐wide 3‐D gravity model, updated by the most comprehensive sediment thickness and seismic observations, offering the first systematic view of ...
Yan Li, Pingchuan Tan, Shaowen Liu
wiley   +1 more source

Three‐Dimensional Resistivity Structure of Iwo‐Yama Volcano, Kirishima Volcanic Complex, Japan: Relationship to Shallow Seismicity, Surface Uplift, and a Small Phreatic Eruption

Geophysical Research Letters, 2018
Iwo‐yama volcano, part of the Kirishima Volcanic Complex, has recently shown signs of unrest. We conducted a hypocenter relocation of shallow earthquakes and broadband magnetotelluric measurements around Iwo‐yama.
K. Tsukamoto, K. Aizawa, K. Chiba, W. Kanda, M. Uyeshima, T. Koyama, M. Utsugi, K. Seki, T. Kishita   +8 more
doaj   +1 more source

Multi‐Scale Electrical Conductivity Model of the Contiguous United States

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract The completion of the Magnetotelluric (MT) USArray across the contiguous US enables continental‐scale 3‐D imaging of the asthenosphere‐lithosphere electrical structure. We present a novel 3‐D model of the contiguous United States (MECMUS), derived from a single inversion of the now‐completed USMTArray data set.
Federico D. Munch, Alexander Grayver
wiley   +1 more source