Results 11 to 20 of about 35,501 (220)

Assessing the Environmental Consequences of the Generation and Alteration of Mafic Volcaniclastic Deposits During Large Igneous Province Emplacement

open access: yesGeophysical Monograph Series, Page 117-131., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Benjamin Black   +4 more
wiley  

+1 more source

Mechanical Activation of Smectite-Based Nanocomposites for Creation of Smart Fertilizers

open access: yesApplied Sciences, 2022
This research presents the mechanical creation of smart fertilizers from a mixture of smectite and urea in a 3:2 ratio by using the planetary milling technique.
Maxim Rudmin   +4 more
doaj   +1 more source

Chemical weathering and provenance evolution of Holocene–Recent sediments from the Western Indus Shelf, Northern Arabian Sea inferred from physical and mineralogical properties [PDF]

open access: yes, 2012
We present a multi-proxy mineral record based on X-ray diffraction and diffuse reflectance spectrophotometry analysis for two cores from the western Indus Shelf in order to reconstruct changing weathering intensities, sediment transport, and provenance ...
Clift, Peter D.   +5 more
core   +2 more sources

Characterization of a bentonite and its permanent aqueous suspension

open access: yesJournal of the Turkish Chemical Society, Section A: Chemistry, 2020
A bentonite sample taken from Reşadiye (Tokat/Turkey) deposite was mixed with distilled water. The formed permanent aqueous suspension was separated by decantation from the flocculated solid fraction.
Fatma Eda ÖZGÜVEN   +3 more
doaj   +1 more source

Elucidating the crystal-chemistry of Jbel Rhassoul stevensite (Morocco) by advanced analytical techniques [PDF]

open access: yes, 2008
The composition of Rhassoul clay is controversial regarding the nature of the puremineral clay fraction which is claimed to be stevensite rather than saponite.
A. Maazouz   +28 more
core   +3 more sources

Exploration and characterization of local raw bentonite of a part of Garmiyan-Kurdistan/Iraq

open access: yesKuwait Journal of Science, 2023
Samples from Garmiyan located in Kurdistan region of Iraq were collected and investigated concerning their physical, chemical, and mineralogical properties.
Dler M.S. Shwan   +3 more
doaj   +1 more source

Uses of intercalation reactions for modification the structure of smectite mineral of bentonite (Maastrichtian and Danian) western desert / Iraq

open access: yesTikrit Journal of Pure Science, 2023
The smectite mineral of bentonite deposits within Digma (Maastrichtian) and Akashat (Danian) formations in the western desert of Iraq distinguished by hydrophilic properties, and the presence of Ca and sometimes Na in the interlayer space.
Ahid Younis Al-Mallah   +1 more
doaj   +1 more source

Weathering microenvironments on feldspar surfaces: implications for understanding fluid-mineral reactions in soils [PDF]

open access: yes, 2008
The mechanisms by which coatings develop on weathered grain surfaces, and their potential impact on rates of fluid-mineral interaction, have been investigated by examining feldspars from a 1.1 ky old soil in the Glen Feshie chronosequence, Scottish ...
Blum   +8 more
core   +2 more sources

Diagenesis of the Sedimentary Fe–Ni Deposits of Euboea: Evidence Based on Phyllosilicate Mineralogy

open access: yesMaterials Proceedings, 2021
A set of samples with different textures from the sedimentary Fe–Ni deposits of Central Euboea, Greece, were studied with XRD and SEM-EDS to investigate the relationships between phyllosilicates present.
Spyros Cheliotis-Chatzidimitriou   +2 more
doaj   +1 more source

Smectite promotes probiotic biofilm formation in the gut for cancer immunotherapy

open access: yesCell Reports, 2021
Summary: Administration of probiotics to regulate the immune system is a potential anti-tumor strategy. However, oral administration of probiotics is ineffective because of the poor inhabitation of exogenous bacteria in host intestines.
Congwei Han   +11 more
doaj   +1 more source

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