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Minerals
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Soil Minerals
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Soil Minerals

A special issue of Minerals (ISSN 2075-163X). This special issue belongs to the section "Environmental Mineralogy and Biogeochemistry".

Deadline for manuscript submissions: closed (20 June 2020) | Viewed by 7159

Special Issue Editor

Prof. Dr. Grzegorz Jozefaciuk

E-Mail Website
Guest Editor
Institute of Agrophysics, Polish Academy of Sciences, Lublin, Poland
Interests: surface chemistry; aggregation; minerals; soils

Special Issue Information

Dear Colleagues,

The most reactive part of a soil, referred as clay fraction, contains smaller than 2 micrometers particles of various mineral phases, organic compounds and organomineral associations. Clay components are responsible for soil sorption, electric charge, catalytic, structural or acid-base properties, thus governing soil bio-geochemical cycles, fertility and functionality. Physicochemical properties of clay fraction are also important for environmental, geotechnical or industrial applications. Soil clay components are highly sensitive against various external factors, and therefore they usually alter in vast majority of soil processes, among which soil degradation processes such as, e.g., acidification, alkalization, pollution, saqlinization, weathering, or structure destructionnowadays are paid particular attention by researchers.

Having in mind these different aspects of the soil clay fraction role and properties, as well as the scientific interests of soil mineralogists, this Special Issue will be mainly devoted to mineral and organomineral soil clay components; however, mineralogical aspects of coarser mineral soil components will be considered also. Research papers reporting surface and structural characterization of soil minerals and mineral-involved mechanisms of soil processes using both experimental and theoretical approaches, as well as reviews covering different aspects of soil minerals behaviour and properties are welcome.

Prof. Dr. Grzegorz Jozefaciuk
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Minerals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • soil minerals
  • characteristics
  • properties
  • processes
  • organomineral associations

Published Papers (2 papers)

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Research

11 pages, 2193 KiB  
Article
Microstructural Investigations on Plasticity of Lime-Treated Soils
by Enza Vitale, Dimitri Deneele and Giacomo Russo
Minerals 2020, 10(5), 386; https://doi.org/10.3390/min10050386 - 25 Apr 2020
Cited by 11 | Viewed by 2748
Abstract
The surface charge distribution of clay particles governs the interparticle forces and their arrangement in clay-water systems. The plasticity properties are the consequences of the interaction at the microscopic scale, even if they are traditionally linked to the mechanical properties of fine-grained soils. [...] Read more.
The surface charge distribution of clay particles governs the interparticle forces and their arrangement in clay-water systems. The plasticity properties are the consequences of the interaction at the microscopic scale, even if they are traditionally linked to the mechanical properties of fine-grained soils. In the paper, the plasticity modifications induced by the addition of lime were experimentally investigated for two different clays (namely kaolinite and bentonite) in order to gain microstructural insights of the mechanisms affecting their plastic behavior as a function of the lime content and curing time. Zeta potential and dynamic light scattering measurements, as well as thermogravimetric analyses, highlighted the mechanisms responsible for the plastic changes at a small scale. The increase of the interparticle attraction forces due to the addition of lime increased the liquid and plastic limits of kaolinite in the short term, without significant changes in the long term due to the low reactivity of the clay in terms of pozzolanic reactions. The addition of lime to bentonite resulted in a decrease of interparticle repulsion double layer interactions. Rearrangement of the clay particles determined a reduction of the liquid limit and an increase of the plastic limit of the treated clays in the very short term. Precipitation of the bonding compounds due to pozzolanic reactions increased both the liquid and plastic limits over the time. Full article
(This article belongs to the Special Issue Soil Minerals)
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13 pages, 2783 KiB  
Communication
Characterization of Physically Fractionated Wollastonite-Amended Agricultural Soils
by Aashvi Dudhaiya, Fatima Haque, Hugo Fantucci and Rafael M. Santos
Minerals 2019, 9(10), 635; https://doi.org/10.3390/min9100635 - 16 Oct 2019
Cited by 11 | Viewed by 3924
Abstract
Wollastonite is a natural silicate mineral that can be used as an agricultural soil amendment. Once in the soil, this mineral undergoes weathering and carbonation reactions, and, under certain soil and field crop conditions, our previous work has shown that this practice leads [...] Read more.
Wollastonite is a natural silicate mineral that can be used as an agricultural soil amendment. Once in the soil, this mineral undergoes weathering and carbonation reactions, and, under certain soil and field crop conditions, our previous work has shown that this practice leads to accumulation of inorganic carbon (calcium carbonate). Mineral carbonation is the carbon sequestration approach with the greatest potential for sequestration capacity and permanency. Agricultural lands offer vast areas onto which such minerals can be applied, while benefiting crops. This work illustrates a technique to separate wollastonite-containing soils into different fractions. These fractions are characterized separately to determine organic and inorganic content, as well as to determine the chemical and mineral composition. The aim is to detect the fate of wollastonite in agricultural soils, and the fate of weathering/carbonation products in the soil. The soils used in the study were collected from soybean and potato farmlands in Southern Ontario, and from an experimental pilot plot. Soil fractionation was done using sieving, and soil fractions were analyzed by a calcimeter, X-ray diffraction, and loss-on-ignition. Acid digested samples were measured by Inductively Coupled Plasma Mass Spectrometry. Carbonates and wollastonite were enriched by fractionation. Full article
(This article belongs to the Special Issue Soil Minerals)
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