Results 71 to 80 of about 5,330 (213)

On Prediction of Permeability in Sedimentary Rocks Using Geoelectrical Parameters

Water Resources Research, Volume 62, Issue 3, March 2026.
Abstract Permeability prediction from geoelectrical measurements on sedimentary rocks remains a longstanding challenge due to the complex interplay between pore structure and electrical properties. This study investigates the relationship between permeability and geoelectrical parameters, particularly formation factor (F $F$) and induced polarization ...
Andreas Weller, Klaudio Peshtani, Lee Slater   +2 more
wiley   +1 more source

Tectonic interpretation of electrical structures beneath the West African craton edge in eastern Senegal [PDF]

, 1988
Des mesures du champ magnétotellurique à travers le bassin côtier du Sénégal et la chaîne des Mauritanides ont permis l'élaboration de modèles de résistivité à deux dimensions. Les sections géoélectriques reflètent les changements latéraux de résistivité
Ritz, Michel, Robineau, Bernard
core   +1 more source

Role of Complex Crustal and Basinal Structures in Onset of an Intracratonic Rift System: An Example From the Onshore Potiguar Basin, Brazilian Equatorial Margin

Basin Research, Volume 38, Issue 2, March/April 2026.
Schematic evolution model of the Onshore Potiguar Basin, illustrating the role of complex crustal and basinal structures in the onset of this intracratonic rift system in NE Brazilian Equatorial Margin. Red arrows indicate the extensional direction and coloured areas on the surface are the Self‐Organizing Maps populations related to crystalline ...
David L. de Castro, Diógenes C. Oliveira, Germano Melo Jr, Gilsijane V. Ramos, Alanny C. C. Melo, Sidnei P. Rostirolla   +5 more
wiley   +1 more source

Simulation and Analysis of Geomagnetically Induced Current Levels in Shandong Power Grid

Space Weather, 2021
Geomagnetically induced current (GIC) in utility systems such as electric power grids occurring during extreme geomagnetic storms can exceed the tolerance limit of the systems, which can cause serious system damages.
Han Wang, Zan‐Yang Xing, Nanan Balan, Yan‐Ling Wang, Qing‐He Zhang, Li‐Kai Liang   +5 more
doaj   +1 more source

Magma Storage Below Sabancaya Volcano (Southern Peru) Imaged by Broadband Magnetotellurics

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 2, February 2026.
Abstract Sabancaya volcano is one of the most active volcanoes in the Central Andes. Its ongoing eruptive process is accompanied by large‐scale deformation, with activation of the Huambo‐Cabanaconde fault system, marked by intense seismicity over an area of about 50 × 30 km2 ${\mathrm{k}\mathrm{m}}^{2}$.
Jose‐Luis Torres, Svetlana Byrdina, Gonzalo Romero‐Beltran, Stéphane Garambois, Volker Rath, Yanet Antayhua, Marco Rivera, Alain Burgisser, Roger Machacca, Marco Milla, Hernando Tavera, Philip Hering   +11 more
wiley   +1 more source

The New Geomagnetic Monitoring Network in China: Insights From the 2024 Mother's Day Superstorm

Space Weather, Volume 24, Issue 2, February 2026.
Abstract China has established a ground‐based network system, that is the Chinese Meridian Project (CMP), to continuously monitor the geomagnetic field. The superstorm in May 2024 was analyzed using the CMP data. The negative peak of the horizontal geomagnetic field (Bh) during the storm main phase at different CMP stations varied between −449 nT and ...
Jing Wang, Yue Yan, Bingxian Luo, Chunming Liu, Hui Li, Jiaojiao Zhang, Yanhong Chen, Chen Wu, Zihan Wu, Ziqian Liu, Xin Wang, Ercha Aa, Xianzhi Ao   +12 more
wiley   +1 more source

Geophysical assessment of subsurface conditions at proposed building sites: implications for foundation failure and building collapse [PDF]

, 2018
Building collapse has been a recurrent environmental hazard in Nigeria in the last two decades. This is a corollary of inadequate foundation investigation prior to construction, poor government policies, and general lack of awareness on the importance of
Ariyo, Stephen Oluwafemi, Bayewu, Olateju O., Fatoba, Julius Ogunmola, Lawal, Muhideen A., Omosanya, Kamadeen Olawale   +4 more
core  

The MANA Magnetometer Array, and Magnetic Observations Across New Zealand From 2024

Space Weather, Volume 24, Issue 2, February 2026.
Abstract This paper describes the Magnetometer Array for New Zealand Aotearoa, or MANA, completed in 2023. The network consists of five new variometer sites to complement the existing Eyrewell geomagnetic observatory. Here, we describe the technical details and capabilities of the network, including the hardware and software used. Data products include
John Malone‐Leigh, Craig J. Rodger, Aaron T. Hendry, James Brundell, Daniel Mac Manus, Tanja Petersen, Lisa Evans, Mikhail Kruglyakov, Xinhu Feng   +8 more
wiley   +1 more source

The Geomagnetic Storm on 10–12 May 2024 and Its Effect on the Swedish Power Grid

Space Weather, Volume 24, Issue 2, February 2026.
Abstract On 10–12 May 2024, at least five interplanetary coronal mass ejections (ICMEs) arrived at Earth and caused the strongest geomagnetic storm in over 20 years. During this geomagnetic storm, a disturbance occurred in a transformer in southern Sweden, causing a drop in power supply in the power line connecting Sweden and Poland.
A. V. L. Wallner, A. P. Dimmock, V. Lanabere, A. Johlander, S. Molenkamp Venholen, A. Viljanen, L. Juusola, L. Rosenqvist, J. Setréus, E. Yordanova, S. Buchert, U. Heiter, Yu. V. Khotyaintsev   +12 more
wiley   +1 more source

Geoelectric field modeling for GIC risk assessment in Germany

, 2023
The 28th IUGG General Assembly (IUGG2023) (Berlin 2023)
Pick, L., Grayver, A., Guimarães Carvalho, A., Berdermann, J.   +3 more
openaire   +2 more sources