Results 31 to 40 of about 10,713 (180)

A review of possible mechanisms for mercury migration in diagenesis: Clay to pyrite

Frontiers in Earth Science, 2023
Though sedimentary mercury in marine sediments has been regarded as a geological indicator of volcanic activity based on volcanism activity is the dominant natural source of Hg to the oceans, the influence of diagenesis on mercury cannot be dismissed ...
Huan Xu, Bo Ran, Shugen Liu, Tong Sun, Chao Luo, Yi Li, Yiqing Zhu   +6 more
doaj   +1 more source

A study of smectite

, 2021
We report that smectite, a type of mineral clay and established anti-diarrhoea drug, promotes the expansion of probiotics (especially Lactobacillus) in the murine gut that subsequently elicits anti-tumor immune ...
Dong, L
core   +2 more sources

Clay minerals in the Pliocene–Quaternary sediments of the southern Yangtze coast, China: Sediment sources and palaeoclimate implications

Journal of Palaeogeography, 2014
Clay mineralogy was used as an indicator of the sediment source and prevailing climate and five suites (I–V) were identified throughout the borehole. Smectite was dominant in the bottom suite of the borehole, indicating the sediment was mainly derived ...
Jing Chen, Zhang–Hua Wang, Tao–Yuan Wei, Bao–Cheng Zhao, Zhong–Yuan Chen   +4 more
doaj   +1 more source

Surface hydration‐induced damage in tight oil‐bearing sandy conglomerate reservoirs

Deep Underground Science and Engineering, EarlyView.
A series of techniques such as X‐ray diffraction, scanning electron microscopy, energy‐dispersive spectroscopy, conductivity tests, and infrared thermal imaging were used. The key findings are the identification of a two‐stage surface hydration process and the elucidation of the effects of various minerals and elements on the hydration process ...
Anbang Zhao, Shuheng Du, Yuan Zhang, Jinghong Hu, Bo Zhou, Yun Wei   +5 more
wiley   +1 more source

Estimating Soil Compaction Risk at Regional Scales Using Meteorological Data and Soil Spectroscopy

Land Degradation &Development, EarlyView.
ABSTRACT Soil compaction is a significant form of soil degradation in Europe, reducing agricultural productivity, limiting carbon sequestration and increasing greenhouse gases emissions. In response, the forthcoming European Union Soil Monitoring and Resilience Law requires spatial assessment of topsoil and subsoil compaction risk at district, that is,
Felipe Bachion de Santana, Rebecca. L. Hall, Longnan Shi, Owen Fenton, Victoria Lowe, Giulia Bondi, Lilian O'Sullivan, Karen Daly   +7 more
wiley   +1 more source

Using small-angle X-ray scattering to investigate the compaction behaviour of a granulated clay

, 2015
The compaction behaviour of a commercial granulated clay (magnesium aluminium smectite, gMgSm) was investigated using macroscopic pressure-density measurements, X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray microtomography (XμT) and ...
Conway, Barbara R, Sweeney, Francis, Laity, Peter R., Asare-Addo, Kofi, Šupuk, Enes, Conway, Barbara R.   +5 more
core   +1 more source

Maturation changes of hydrocarbons in solid parts of peloids from Serbian spas - catalytic influence of clay minerals [PDF]

Journal of the Serbian Chemical Society
The study focused on inspecting the composition of n-alkane, sterane and terpane biomarkers in healing mud (peloid) organic matter in the Rusanda, Bujanovac and Vranje spas. It was assumed that the catalytic influence of minerals on changes in biomarkers
Nikolovski Zlatko, Šajnović Aleksandra, Gajica Gordana, Burazer Nikola, Brčeski Ilija, Dabić Predrag, Jovančićević Branimir   +6 more
doaj   +1 more source

Anaerobic Corrosion Phenomena of Cast Iron and Copper in Artificial Groundwater at Elevated Temperature

Materials and Corrosion, EarlyView.
This study examines corrosion of copper and cast iron as candidate canister materials for high‐level radioactive waste disposal in contact with bentonite suspension. The influence of three electrolyte compositions on corrosion behavior under repository‐relevant conditions is assessed.
Louisa Panjiyar, Martin Ende, Christiane Stephan‐Scherb   +2 more
wiley   +1 more source

ESEM study of illite/smectite freshwater sensitivity in sandstone reservoirs

, 1993
The water sensitivity of authigenic smectite- and illite-rich illite/smectites in sandstone reservoirs has been investigated using an Environmental Scanning Electron Microscope (ESEM). The ESEM enabled the illite/smectites to be directly observed in situ
Mackinnon I.D.R., Baker J.C., Uwins, P. J. R., Mackinnon, Ian D. R., Baker, J. C., Uwins P.J.R.   +5 more
core   +1 more source

Sustainable Polymer Biocomposites for Food Packaging: Green Nanotechnology, Circular Plastic Upcycling and Smart Functional Materials

Packaging Technology and Science, EarlyView.
Graphical abstract showing the development of biodegradable polymer biocomposites reinforced with natural fibres, green nanoparticles and waste‐plastic upcycling pathways toward sustainable smart food packaging materials ABSTRACT The fundamental hypothesis behind this review is that the combination of biodegradable polymer‐based biocomposites, which ...
Chandra Sekhar Espenti, Jaewoong Lee
wiley   +1 more source