Results 51 to 60 of about 1,168 (175)

Nature of serpentinite interactions with low-concentration sulfuric acid solutions

Green Processing and Synthesis
The nature of serpentinite interaction with low-concentration sulfuric acid solutions is studied. Using IR-Fourier spectroscopy, X-ray, and serpentinite leaching with sulfuric acid solutions containing 10–60% of stoichiometrically required amount (SRA ...
Yeskibayeva Chaizada, Auyeshov Abdrazak, Arynov Kazhymuhan, Dikanbayeva Aizhan, Satimbekova Asem   +4 more
doaj   +1 more source

Seismicity, Repeating Earthquakes, and Tomographic Imaging of the Blanco Transform Fault System, Northeast Pacific

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract The Blanco transform fault system (BTFS) represents an evolving transform plate boundary in the Northeast Pacific Ocean. Its seismic behavior was captured with a dense network of 54 ocean‐bottom seismometers (OBS) operated for 1 year. We created a high‐resolution earthquake catalog based on different machine‐learning onset pickers.
D. Lange, Y. Ren, I. Grevemeyer
wiley   +1 more source

Garnet–Clinopyroxene Double‐Layered Coronae in a Metagabbronorite From the High‐Grade Metamorphic Gföhl Unit, Moldanubian Zone

Journal of Metamorphic Geology, Volume 44, Issue 4, Page 311-336, May 2026.
ABSTRACT This study investigates garnet–clinopyroxene double‐layered coronae in a metagabbronorite from the high‐grade metamorphic Gföhl Unit (Bohemian Massif). The coronae formed at the interfaces between relic magmatic orthopyroxene, still preserved in the cores of the coronae, and the plagioclase‐rich rock matrix.
Rene Asenbaum, Tereza Nemeškalová, Martin Racek, Vojtěch Janoušek, Julian Portenkirchner, Rainer Abart   +5 more
wiley   +1 more source

Electrical conductivity of magnetite‐bearing serpentinite during shear deformation

Geophysical Research Letters, 2012
Electrical conductivity of serpentinite with various amounts of magnetite was measured during shear deformation at high pressure and temperatures (P = 1.0 GPa, T = 750 K) corresponding to mantle wedge conditions to evaluate the contribution of aligned ...
Seiya Kawano, Takashi Yoshino, Ikuo Katayama   +2 more
doaj   +1 more source

Slab Dehydration Observed Down to Lower Seismicity Plane Depths in the Northern Chile Subduction Zone

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract We present a high‐resolution local earthquake tomography model that constrains the distribution of hydration and dehydration processes within the subducting Nazca slab beneath Northern Chile. We image a distinct downdip transition from high Vp/Vs (∼1.75) over low Vp/Vs (∼1.65) to a homogeneously high Vp/Vs slab at depths of ≥ ${\ge} $85 km ...
Nazia Hassan, Christian Sippl
wiley   +1 more source

Serpentinites and serpentinites: Variety of origins and emplacement mechanisms of serpentinite bodies in the California Cordillera

Island Arc, 2017
AbstractMost serpentinitized peridotite in orogenic belts is derived from oceanic lithosphere, but the emplacement mechanisms of these rocks vary greatly, as illustrated by the nature of these rock bodies and their contacts. The diverse emplacement mechanisms have important implications for connecting ophiolitic rock occurrences to large‐scale orogenic
openaire   +2 more sources

The Detection of Transient Subduction Zone Interface Properties Using Teleseismic Data

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract The physical properties of subduction zone interfaces govern the transition between stable aseismic slip, episodic slow slip events (SSEs), and large earthquakes. Ultraslow velocity layers (USVLs) along the megathrust are commonly interpreted as indicators of elevated pore‐fluid pressures that promote slow slip, but their temporal variability ...
F. Rappisi, T. J. Craig, S. Rost
wiley   +1 more source

Potencial uso de serpentinito no armazenamento mineral do CO2

Química Nova, 2013
Rising anthropogenic CO2 emissions are considered a major contributor to the greenhouse effect. There are several options for reducing atmospheric CO2 levels, and among these alternatives, Carbon Capture and Storage (CCS) has been identified as an ...
Natacha Alves, Claudia Xavier, Jeane Dullius, Rosane Ligabue, João Marcelo Ketzer, Marcus Seferin, Sandra Einloft   +6 more
doaj   +1 more source

The Hematite Question: Hydrogen‐Driven Magnetization of Hematite‐Bearing Sandstones and Insights for Natural Hydrogen Exploration

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Natural hydrogen is a promising clean energy resource, but locating subsurface accumulations remains challenging. Aeromagnetic anomalies are increasingly utilized as a rapid and cost‐effective tool for geological hydrogen prospection, particularly associated with magnetite formation during abiotic geochemical hydrogen generation through ...
B. D. L. Mendes, C. Cheng, C. Hilgers, A. Kontny   +3 more
wiley   +1 more source

Beyond Rock Glaciers: Investigating Meltwater Contribution and Water Quality in High‐Mountain Springs From Different Landforms

Hydrological Processes, Volume 40, Issue 4, April 2026.
We investigated the water chemistry of springs from different landforms in high‐elevation Alpine catchments. Only in predisposing lithological settings, springs from landforms most likely influenced by ice had a poor water quality with high dissolved concentrations of metals.
Stefano Brighenti, Chiara Crippa, Luca Carturan, Valeria Lencioni, Alberto Scotti, Andrina Janicke, Monica Tolotti, Raul‐David Șerban, Andrea Mustoni, Marco Armanini, Werner Tirler, Francesco Comiti, Nicola Colombo   +12 more
wiley   +1 more source