Elevated temperature effects on swelling pressure of compacted bentonite
Deep Underground Science and Engineering, Volume 4, Issue 4, Page 699-708, December 2025.We present a set of new experimental investigations on the effects of elevated temperature on the swelling pressure development of compacted bentonite. This research was motivated by an emerging interest in using bentonite as a plug material in oil and gas well abandonment.
Linhua He +4 more
wiley +1 more source
Passive fillers for water activity measurement [PDF]
, 2013 The paper is dedicated to passive fillers, which are the necessary substances for a method of water activity determination in liquid samples by mirror dew-point temperature measurement.
Nenartovich, I. V. +2 more
core
Clay mineral formation under oxidized conditions and implications for paleoenvironments and organic preservation on Mars [PDF]
, 2017 Clay mineral-bearing locations have been targeted for martian exploration as potentially habitable environments and as possible repositories for the preservation of organic matter.
Adcock, Christopher T. +7 more
core +3 more sources
Tobelite, a new ammonium dioctahedral mica.
Mineralogical Journal, 1982 Mineralogical properties of tobelite, a new ammonium-dominant dioctahedral mica, found in the Ohgidani pottery stone deposit at Tobe, Ehime Prefecture, Japan, are described.This mineral, accompanied by quartz, occurs as a hydrothermal alteration product of a biotite andesite dyke. Wet chemical analysis gives a structural formula: ((NH4)0.53K0.19Na0.01
openaire +2 more sources
Palagonitization of Volcanic Rocks in Polar Climates: The Case of Deception Island (Antarctica)
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 12, December 2025.Abstract A detailed study of palagonitization in rocks from Deception Island—one of Antarctica's most active volcanoes—has been performed to advance our understanding of this alteration process. A detailed petrographic (optical and SEM), mineralogical (XRD), and mineral and glass spot geochemistry (EDS and EMP) characterization has been conducted on ...
Oriol Vilanova‐Pagès +10 more
wiley +1 more source
CHARACTERIZATION OF CLAYS USED FOR MEDICINAL PURPOSES IN THE ARCHIPELAGO OF CAPE VERDE [PDF]
, 2009 Amostras de duas argilas comercializadas para fins medicinais (alívio de afecções do foro gastrointestinal, tratamento de abcessos, furúnculos e feridas, assim como para afecções da pele e aplicações cosméticas), e vendidas numa loja de produtos naturais
Gomes, Celso +2 more
core
Hydration Properties and Interlayer Organization of Water and Ions in Synthetic Na-Smectite with Tetrahedral Layer Charge. Part 1. Results from X-ray Diffraction Profile Modeling [PDF]
, 2010 International audienceThe dehydration of two Na-saturated synthetic saponites with contrasting layer charge was studied by modeling the X-ray diffraction (XRD) patterns recorded along a water vapor desorption isotherm.
Ferrage, Eric +3 more
core +7 more sources
Thermal Reactions of Smectite Minerals at Earthquake Timescales
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 12, December 2025.Abstract Frictional heating causes a transient temperature rise in fault zones during earthquakes that leads to metamorphic reactions within the fault rocks. The products of these reactions provide potential evidence of earthquakes in both the outcrop and drill core. Clay minerals such as smectites are commonly found in faults.
Julia E. Krogh +4 more
wiley +1 more source
Anti-Diarrheal Effects of a Combination of Korean Traditional Herbal Extracts and Dioctahedral Smectite on Piglet Diarrhea Caused by Escherichia coli and Salmonella typhimurium [PDF]
Pakistan Veterinary Journal, 2011 The present study evaluated anti-diarrheal effects of a mixture of Coptidis rhizoma, Lonicerae flos, and Paeonia japonica (1:1:1, v/v/v) methanol extracts and dioctahedral smectite (CLPD) on piglet diarrhea caused by Escherichia coli (E.
Won-Chul Jung§, Chun-Nam Cha§1, Yeo-Eun Lee2, Chang-Yeol Yoo2, 3, Eun-Kee Park4, Suk Kim and Hu-Jang Lee*
doaj
Scientific Reports, 2017 The paleoclimate during the Early Eocene in Maritime Antarctica is characterized by cool conditions without a pronounced dry season. Soils formed on volcanic material under such climate conditions in modern analogue environments are usually Andosols rich
Diogo Noses Spinola +6 more
doaj +1 more source