Results 21 to 30 of about 375,479 (331)

Evolution of carbonate platforms in the northeast Red Sea during the last 23 million years [PDF]

open access: yesScientific Reports
The Midyan Peninsula between the northern Red Sea and Gulf of Aqaba is the only place along the Red Sea where Lower to Middle Miocene syn-rift sedimentary strata (Aquitanian to Langhian) are continuously exposed, including exceptionally preserved ...
Tihana Pensa   +5 more
doaj   +2 more sources

Nano-Montmorillonite Regulated Crystallization of Hierarchical Strontium Carbonate in a Microbial Mineralization System. [PDF]

open access: yesMaterials (Basel), 2019
In this paper, nano-montmorillonite (nano-MMT) was introduced into the microbial mineralization system of strontium carbonate (SrCO3). By changing the nano-MMT concentration and the mineralization time, the mechanism of mineralization was studied.
Zheng K   +9 more
europepmc   +2 more sources

Incorporation of Incompatible Strontium and Barium Ions into Calcite (CaCO3) through Amorphous Calcium Carbonate [PDF]

open access: goldMinerals, 2020
Calcite is a ubiquitous mineral in nature. Heavy alkaline-earth elements with large ionic radii such as Sr2+ and Ba2+ are highly incompatible to calcite.
Ayaka Saito   +6 more
openalex   +2 more sources

Diffusion of strontium implanted in glassy carbon [PDF]

open access: yesProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2021
Glassy carbon has properties making it attractive as a containment material for radioactive waste. In this study, the diffusivity of the radiological important fission product, strontium, is measured. Two hundred kiloelectronvolt strontium ions were implanted at room temperature.
Johan B. Malherbe   +3 more
openaire   +2 more sources

THE OPTIMIZATION OF THE STRONTIUM COMPOUNDS PRODUCTION, USING A CELESTINE ORE SAMPLE

open access: yesRudarsko-geološko-naftni Zbornik, 2023
The direct conversion of celestine (SrSO4) to strontium carbonate as well as its enrichment by hydrometallurgy were investigated. A study was also conducted to investigate whether acid concentration affected the quality of strontium sulfate in celestine ...
Ardalan Alishahi   +3 more
doaj   +1 more source

Kinetics of Strontium Carbonate Formation on a Ce-Doped SrFeO3 Perovskite

open access: yesCatalysts, 2022
Some perovskites exhibit catalytic activity in the abatement of organic pollutants in water. However, their performance decreases over time, possibly due to forms of poisoning, such as carbonate formation.
M. B. Østergaard   +3 more
semanticscholar   +1 more source

Investigation of the radiopacity and cytotoxicity of Albo-Dent - novel strontium carbonate incorporated calcium silicate based dental cement [PDF]

open access: yesStomatološki glasnik Srbije, 2021
Introduction: Calcium silicate (CS) dental cements have numerous clinical indications in dentistry including pulp capping, root end surgery, perforation repair and apexification/apexogenesis treatment.
Despotović Ana   +4 more
doaj   +1 more source

Strontium isotope stratigraphy and LA-ICP-MS U-Pb carbonate age constraints on the Cenozoic tectonic evolution of the southern South China Sea

open access: yesGSA Bulletin, 2022
The tectonic evolution of the South China Sea is closely associated with multiple subduction-collision processes in Southeast Asia. When the collision of the Dangerous Grounds terrane with Sabah-Palawan Islands terminated is debated due to poor age ...
Gang Li   +10 more
semanticscholar   +1 more source

Tracing timing of growth in cultured molluscs using strontium spiking

open access: yesFrontiers in Marine Science, 2023
IntroductionGrowth experiments present a powerful tool for determining the effect of environmental parameters on growth and carbonate composition in biogenic calcifiers.
Niels J. de Winter   +10 more
doaj   +1 more source

NanoSr – A New Carbonate Microanalytical Reference Material for In Situ Strontium Isotope Analysis [PDF]

open access: hybridGeostandards and Geoanalytical Research, 2019
The in situ measurement of Sr isotopes in carbonates by MC‐ICP‐MS is limited by the availability of suitable microanalytical reference materials (RMs), which match the samples of interest.
Michael Weber   +6 more
openalex   +2 more sources

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