Results 171 to 180 of about 127,546 (339)

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

open access: yesJournal 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   +5 more
wiley   +1 more source

Adsorption Preceding Wetting Front Controls Seismic Velocity

open access: yesGeophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Rock elasticity varies with both humidity and water saturation, yet their combined effects remain poorly understood, although in nature vapor adsorption and liquid infiltration occur simultaneously. Here, we present experimental data of P‐wave velocity and volume expansion in a free‐standing sandstone subject to progressive wetting.
Rui Wu   +11 more
wiley   +1 more source

Feldspar reduces fault frictional healing rate under hydrothermal conditions. [PDF]

open access: yesNat Commun
Feng W   +6 more
europepmc   +1 more source

Unstable Drainage Dynamics During Multiphase Flow Across Capillary Heterogeneities

open access: yesGeophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract We use novel, fast 4D Synchrotron X‐ray imaging with large field‐of‐view to reveal pore‐ and macro‐scale drainage dynamics during gas–brine flow through a layered sandstone rock sample. We show that a single centimeter‐scale layer, similar in pore size distribution to the surrounding rock but with reduced connectivity, temporarily inhibits ...
C. Harris   +4 more
wiley   +1 more source

Influence of Lateral Input of Sediments on Longitudinal Luminescence Signal in a River (Rakaia River, Aotearoa New Zealand)

open access: yesGeophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Rivers transport sediments from mountains to oceans, shaping landscapes and transmitting environmental signals. This transfer is repeatedly interrupted by storage and remobilization, complicating efforts to reconstruct erosion histories. Luminescence‐based methods, which exploit the progressive zeroing of the luminescence signals (bleaching ...
Louise Karman‐Besson   +7 more
wiley   +1 more source

Surface Structure of Polar Silver Iodide (0001) in Various Liquids: No Indication for a Surface Reconstruction

open access: yesChemPhysChem, Volume 27, Issue 7, 14 April 2026.
Silver iodide (AgI) is well known for its ice nucleating ability. The surface considered to be relevant in this respect is, however, polar. Polar surfaces are unstable and are anticipated to be stabilized, e.g., by surface reconstruction. Here, we show that no indication for a reconstruction can be found for AgI when the crystal is cleaved in various ...
Kim Noelle Dreier   +3 more
wiley   +1 more source

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