Results 31 to 40 of about 1,055 (226)
Meteoritics &Planetary Science, EarlyView.Abstract We investigated the structural framework of the north–northwestern Paraná Basin in Brazil to test whether the pre‐impact structures in this region may have had any influence on the first‐order formation and morphostructure of the Araguainha impact structure (AIS).
Renato B. Bernardes +5 more
wiley +1 more source
Comparison between geoelectric and electromagnetic sounding responses in volcanic areas
Annals of Geophysics, 1997 The structure of active and inactive volcanoes can be explored with electric and electromagnetic surveys. We test the actual applicability of prospecting methods that employ both stationary and time-varying fields, using mathematical models both for ...
L. Alfano, M. Giudici
doaj +1 more source
Remote Sensing, 2022 The geoelectric properties of the geothermal system associated with the Tolhuaca volcano were investigated by three-dimensional (3D) inversion of magnetotelluric (MT) data.
Maximiliano Pavez +7 more
doaj +1 more source
Practical Magnetotellurics [PDF]
Eos, Transactions American Geophysical Union, 2006 Practical Magnetotellurics lives up to its title and nicely fills a big hole in the literature on the subject of the magnetotelluric (MT) method, a means by which the geological and physical properties of the crust and mantle may be studied using electrical conductivity images.In an MT sounding passive time series, measurements of the Earth's naturally
openaire +1 more source
Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.Abstract The Tan‐Lu Fault Zone (TLFZ), the largest lithosphere‐scale strike‐slip fault in eastern China, has experienced multiple tectonic stages and remains high seismic activity, including the 1668 Tancheng earthquake (M 8.5). Here we employ dense‐array receiver functions to resolve crustal thickness, Vp/Vs ratio, and seismic discontinuities in the ...
Yuchen Huang +6 more
wiley +1 more source
Layer Stripping in Magnetotellurics (MT) for Enhancement of Resistivity Change Effect in Reservoir: Equivalence Analysis [PDF]
, 2020 Magnetotellurics (MT) can be applied to monitor resistivity change at depth that is for example due to fluid injection in enhanced oil recovery or CO2 storage.
Warsa, W +2 more
core +1 more source
A property of the determinant of a 2 x 2 tensor relevant to magnetotellurics
, 2019 Where a 2×2 tensor relates two geophysical quantities that are measured in the field as time-varying vectors, its determinant is shown to be positive when, for two different events occurring at different times, a step clockwise in the direction of one ...
Phillips, Chris, Lilley, F. E. M.
core +2 more sources
The electrical structure of the central Pacific upper mantle constrained by the NoMelt experiment
Geochemistry, Geophysics, Geosystems, 2015 The NoMelt experiment imaged the mantle beneath 70 Ma Pacific seafloor with the aim of understanding the transition from the lithosphere to the underlying convecting asthenosphere.
Emily Sarafian +7 more
doaj +1 more source
Multiscale Geoelectrical Properties of the Rochechouart Impact Structure, France
Geochemistry, Geophysics, Geosystems, 2021 The 205 Ma Rochechouart impact structure (France) is characterized by various impactite formations overlying the Hercynian crystalline basement. New constraints from downhole logging and surface electrical resistivity measurements along >100 m long ...
Yoann Quesnel +6 more
doaj +1 more source
Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.Abstract The Tangra Yumco Rift (TYR) in central Tibet is a key window for crust–mantle interactions during extension. We performed high‐resolution crust‐mantle imaging using receiver function analysis, 1‐D nonlinear S‐wave velocity inversion, and tomoDD tomography, revealing a vertical Crust–Mantle Degassing System (CMDS) bounded by the Zhala (ZF) and ...
Zongxu Li +8 more
wiley +1 more source