Results 51 to 60 of about 1,604 (165)

Formation of NH_{4}-illite-like phase at the expense of dioctahedral vermiculite in soil and diagenetic environments : an experimental approach

open access: yes, 2018
Selective sorption and/or fixation of cations with low hydration energies (e.g. K^{+}, NH_{4}^{+}, Rb^{+}, Cs^{+}) by vermiculites is a well known phenomenon in soil science and it has been described by many investigators since the 1950s. Because most of
Skiba, Stefan   +9 more
core   +1 more source

Lead‐Free Chiral Hybrid Metal Halides for Circularly Polarized Light‐Emitting Diodes

open access: yesAdvanced Optical Materials, Volume 14, Issue 30, 14 August 2026.
Lead‐free chiral hybrid metal halides provide a versatile platform for realizing chiroptical responses through chiral modulation of metal–halide frameworks with diverse dimensionalities, induces inversion‐symmetry breaking and enables dissymmetric excited‐state transitions toward efficient circularly polarized luminescence and electroluminescence. This
Kun Zhu, Li Wan
wiley   +1 more source

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

Quantifying Post‐Fire Aeolian Sediment Flux Dynamics Following the 2024 Smokehouse Creek Fire: The Role of Wind Seasonality, Thermal Clay Mineral Degradation, and Surface Armoring

open access: yesJournal of Geophysical Research: Earth Surface, Volume 131, Issue 7, July 2026.
Abstract Fire in drylands is commonly associated with enhanced aeolian erosion due to the abrupt loss of vegetation cover. However, the relative contributions of fire‐induced mineralogical degradation of soils, seasonal wind forcing and surface armoring to post‐fire wind erosion remain poorly constrained.
Abinash Bhattachan   +8 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]

open access: yesPakistan 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  

Origin of clay minerals in Early Eocene volcanic paleosols on King George Island, Maritime Antarctica

open access: yesScientific 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

Phase IIb Trial for the Palliative Treatment of Patients With Primary Hepatic Malignancy Unable to Receive Curative Treatment: Efficacy of Colchicine

open access: yesThe Kaohsiung Journal of Medical Sciences, Volume 42, Issue 5, May 2026.
ABSTRACT This trial was to evaluate the efficacy and the safety of colchicine for the palliative treatment of patients with primary hepatic malignancy unable to receive curative treatment. Forty hepatocellular carcinoma (HCC) patients and two intrahepatic cholangiocarcinoma (ICC) patients signed the informed consents.
Zu‐Yau Lin   +8 more
wiley   +1 more source

Comprehensive physicochemical study of dioctahedral palygorskite-rich clay from Marrakech High Atlas (Morocco) [PDF]

open access: yes, 2013
This study is devoted to the physicochemical and mineralogical characterizations of palygorskite from Marrakech High Atlas, Morocco. The raw clay and its Na?-saturated\ 2 lm fraction were characterized using chemical, structural, and thermal analytical ...
Amjoud, M'barek   +12 more
core   +1 more source

Constraining the Hydration of Clay Minerals and Abundances of Amorphous Phases in Gale Crater, Mars

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Both water and organic matter are required for the development and persistence of life. Phyllosilicates (clay minerals) have high surface areas that easily sorb water and organic matter. The Curiosity rover has investigated several hundred meters of stratigraphy in Gale crater, including where clays were detected from orbit.
Sean Czarnecki   +3 more
wiley   +1 more source

Distinguishing Features and Identification Criteria for K-Dioctahedral 1M Micas (Illite-Aluminoceladonite and Illite-Glauconite-Celadonite Series) from Middle-Infrared Spectroscopy Data

open access: yes, 2020
A representative collection of K-dioctahedral 1M micas ranging in composition from (Mg, Fe)-poor illites to aluminoceladonites through Mg-rich illites (Fe-poor varieties) and from Fe-bearing, Mg-rich illites to celadonites through Fe-illites, Al ...
Olga V. Dorzhieva   +2 more
core   +1 more source

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