Results 61 to 70 of about 1,598 (100)

Polymict melt‐bearing breccia dikes in the Morokweng impact structure formed by slip‐induced mechanical mixing of pseudotachylite and cataclasite along large‐displacement impact faults

Meteoritics &Planetary Science, EarlyView.
Abstract A core drilled through shocked and faulted Archean granitoid gneisses and dolerites in the eroded peak ring of the 70–80 km diameter Morokweng impact structure intersects multiple centimeter‐ to meter‐wide clastic‐matrix breccias containing a polymict clast population of lithic and mineral clasts and altered, millimeter‐ to centimeter ‐size ...
Roger L. Gibson, S'lindile S. Wela, Leonidas C. Vonopartis, Marco A. G. Andreoli   +3 more
wiley   +1 more source

Mapping the Dominant Clay Minerals in the Soils of Isfahan Province and Their Relationship with Climate and Parent Materials

علوم آب و خاک, 2020
Understanding the abundance of clay minerals in soil and also, their spatial variability can provide more comprehensive information about soil properties, behavior and functions.
F. Khayamim, H. Khademi, S. Ayoubi
doaj  

The Mineral Composition of Fine-Dispersed fractions (<1, 1-5, 5-10 μm) of agro soddy-podzolic soils with complicated organic profile in Kama River area within Vyatka region

Бюллетень Почвенного института им. В.В. Докучаева, 2016
The mineral composition of the fine fractions (
N. P. Chizhikova, A. M. Prokashev
doaj   +1 more source

New ion-chromatography method for detection of chlorite, chlorate and bromate in drinking water

Romanian Journal of Ecology & Environmental Chemistry, 2020
A direct ion chromatographic method for determination of chlorite, chlorate and bromate in the presence of fluoride, chloride, nitrate, nitrite and bromide in treated drinking waters was described. Separation of target analytes was achieved using an AS19-
Iuliana Paun, Vasile Ion Iancu, Florentina Laura Chiriac, Nicoleta Vasilache, Florinela Pirvu, Marcela Niculescu, Toma Galaon   +6 more
doaj   +1 more source

Redundant and Flexible Electron Transfer Pathways Underlie MsrPQ‐Mediated Repair of Oxidized Periplasmic Proteins

Molecular Microbiology, EarlyView.
This study investigates in vivo the role of the flavin reductase Fre as an electron supplier to the periplasmic methionine sulfoxide reductase system MsrPQ. ABSTRACT The MsrPQ system is essential for the repair of oxidized methionine residues in periplasmic proteins, ensuring bacterial resistance to oxidative stress and envelope integrity.
Laurent Loiseau, Benjamin Ezraty
wiley   +1 more source

The Morphological Characteristics of Clay Minerals in a Tight Sandstone Reservoir by Atomic Force Microscopy

Yankuang ceshi
Clay minerals, as one of the main components of unconventional oil and gas reservoirs, have significant implications for the evaluation of unconventional oil and gas reservoirs in terms of their fine characterization of nano/sub-nano morphological ...
Kunyang WANG, Gu DU, Guan WANG, Jiale HE
doaj   +1 more source

An atlas of plant selenium metabolism

New Phytologist, EarlyView.
Summary Selenium (Se) is not only a rare and toxic element but also an essential micronutrient for humans and animals that is often in short supply. Terrestrial plants do not require Se, but it can have growth‐promoting or negative effects, depending on the exposure level.
Jeroen van der Woude, Mark G. M. Aarts, Michela Schiavon, Antony van der Ent   +3 more
wiley   +1 more source

Microbially generated ferruginous crusts: A potential biosignature of continental input in coastal settings

Sedimentology, EarlyView.
ABSTRACT Thin ferruginous sandy crusts are common on top of sandstone beds in the Early Permian post‐glacial deposits of the Paraná Basin in southern Brazil. These crusts usually preserve wrinkle structures, suggesting that they might be a product of microbial mediation.
Patrícia Weschenfelder, Renata Guimarães Netto, Alisson Klayton Martins   +2 more
wiley   +1 more source

Climate conditions on the South‐Iberian Palaeomargin during the latest Pliensbachian to early Toarcian: A mineralogical and geochemical study from hemipelagic deposits

Sedimentology, EarlyView.
ABSTRACT The integrated analysis of lithofacies, mineralogy and geochemistry of the hemipelagic marine succession exposed in La Cerradura section (South‐Iberian Palaeomargin) provides new information to characterise the palaeoenvironmental conditions during the latest Pliensbachian to early Toarcian, including the Jenkyns Event.
Chaima Ayadi, Isabel Abad, Elisa Laita, Ali Mokhtar Samet, Matías Reolid   +4 more
wiley   +1 more source

Characterizing Isozymes of Chlorite Dismutase for Water Treatment

Frontiers in Microbiology, 2017
This work investigated the potential for biocatalytic degradation of micropollutants, focusing on chlorine oxyanions as model contaminants, by mining biology to identify promising biocatalysts.
Kellen C. Mobilia, Justin M. Hutchison, Julie L. Zilles   +2 more
doaj   +1 more source