Results 61 to 70 of about 2,180 (204)

Detailed Shallow Shear Velocity Structure in the Nankai Trough From Ambient Noise Differential Adjoint Tomography: Implications for Earthquake Generation Mechanisms

open access: yesGeophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Seismic and aseismic slip has been reported in the Nankai Trough. In this study we apply ambient noise differential adjoint tomography to obtain a high‐resolution S‐wave velocity (Vs) model in the Nankai Trough. The Vs in the very shallow imbricate thrust zone is higher than that on both the seaward and landward sides.
Lina Gao   +6 more
wiley   +1 more source

Synthesis and characterization of saponite clays: Part 2. Thermal stability

open access: yes, 2005
Synthetic saponites prepared at atmospheric pressure and at 90 °C within 20 hours with Mg, Zn, Ni, Cu, and/or Co in the octahedral sheets have been thermally treated under reducing and non-reducing conditions with or without the presence of steam.
Vogels, R. J M J   +3 more
core   +1 more source

Production of porous sintered materials using wastes of manufacturing engineering in self-propagating high-temperature synthesis [PDF]

open access: yesЖурнал інженерних наук, 2016
The increasing amount of wastes produced by the manufacturing engineering, as well as their physical and mechanical properties and restorability provide a search for sphere of their application.
Y. S. Povstyana   +3 more
doaj  

Aluminum Phyllosilicate and Jarosite Formation Through Alteration of Reworked Al/Si‐Rich Volcaniclastic Sediments in Nili Fossae, Mars

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 8, August 2026.
Abstract Aluminum phyllosilicates occur in 1–10s of km2 exposures of Noachian (∼3.7 Ga) rock across Mars and typically appear stratigraphically above Fe/Mg‐phyllosilicates. These units have been proposed to represent pedogenic basalt weathering sequences.
S. R. Baker, B. L. Ehlmann
wiley   +1 more source

Structural Evolution of Antigorite by High‐Velocity Impacts

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.
Abstract Serpentine is a major hydrous mineral present in hydrous asteroids that have evolved through planetary impacts. Understanding its dynamic behavior is essential to elucidate the redistribution and retention of water during high‐velocity impact processes. The shock response of antigorite was examined at pressures up to 106 GPa using laser‐driven
Yuhei Umeda   +17 more
wiley   +1 more source

Minerals in Iron and Titanium Skeletal Textures in Nakhlites MIL 090030, MIL 090136, MIL 090032, and MIL 03346: Comparative Analysis With Terrestrial Analogues From Canary Islands, Spain

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 8, August 2026.
Abstract The presence of minor minerals is a key factor distinguishing meteorite types, as they provide valuable insights into the formation processes, surface conditions, and evolutionary history of their parent bodies. In Martian nakhlites, one of the most distinctive minor phases is iron‐titanium oxides forming characteristic skeletal textures ...
Leire Coloma   +5 more
wiley   +1 more source

N-[3-(Trimethoxysilyl)propyl] ethylenediamine Functionalized Saponite as Adsorbent of Nickel from Aqueous Solution [PDF]

open access: yes, 2017
Surface modification of saponite clay by surface functionalization using N-[3-(Trimethoxysilyl)propyl]ethylenediamine was performed. This study of the physicochemical characteristics of modified saponite as a function of its functional compound content ...
Yudha, Septian Perwira   +3 more
core   +1 more source

Surface Mineralogy and Hydrological Controls on “Hotspots” of Dust Emission at Etosha Pan, Namibia

open access: yesJournal of Geophysical Research: Earth Surface, Volume 131, Issue 8, August 2026.
Abstract Ephemeral lake beds are globally significant sources of atmospheric mineral dust aerosols, yet emissions from these landforms exhibit considerable spatial and temporal variability. The complex interactions between climatic drivers and surface properties that govern dust emissions remain poorly understood, contributing to uncertainties in model
N. S. Wallum   +7 more
wiley   +1 more source

Dynamics of Water Confined in Saponite Clay [PDF]

open access: yesJournal of the Physical Society of Japan, 2013
Dynamics of water contained in interlamellar space in synthetic saponite clay, [Si6.343Al1.657][Mg6.000]O20(OH)4[Na1.465Mg0.096].34H2O is studied in the temperature range of the 220–310 K using quasielastic neutron scattering (QENS) technique. Saponite clay belongs to the phyllosilicate family comprising the layers of Si(IV) tetrahedra and Fe(III) or ...
Prabhudesai, S.A.   +6 more
openaire   +2 more sources

Ceramic Production and Geodiversity in Iron Age Iberia: An Archaeometric Study of Pottery from Castrejón de Capote (SW Spain)

open access: yesArchaeometry, Volume 68, Issue 4, Page 659-673, August 2026.
ABSTRACT The hillfort of Castrejón de Capote is one of the best investigated settlements of Late Iron Age southwest Iberia. Located in the territory that the classical sources attributed to the Celtici, it was occupied between the early 4th and the 1st centuries bce.
Beatrijs de Groot   +2 more
wiley   +1 more source

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