Results 21 to 30 of about 892,606 (318)

Geochemical transformations of sulfur in salt lakes (Transbaikalia) [PDF]

open access: yesE3S Web of Conferences, 2023
The water column in brackish and saline lakes hosts various forms of sulfur including sulfide (hydrosulfide), elemental, thiosulfate, and sulfate sulfur.
Borzenko Svetlana
doaj   +1 more source

Sulfur isotopes reveal agricultural changes to the modern sulfur cycle

open access: yesEnvironmental Research Letters, 2022
The environmental fates and consequences of intensive sulfur (S) applications to croplands are largely unknown. In this study, we used S stable isotopes to identify and trace agricultural S from field-to-watershed scales, an initial and timely step ...
Anna L Hermes   +2 more
doaj   +1 more source

Analysis of Sulfur Isotope Composition of Gypsum Samples by Elemental Analyzer-Isotope Mass Spectrometry

open access: yesYankuang ceshi, 2020
BACKGROUND The conventional method for the measurement of sulfur isotopes in sulfate includes mainly barite conversion coupled with dual-inlet SO2 methods. These methods are facile and reliable.
GAO Jian-fei   +4 more
doaj   +1 more source

Sulfur isotopes in Finnish nickel-copper occurrences [PDF]

open access: yesBulletin of the Geological Society of Finland, 1980
The sulfur isotope composition of the Hitura, Kotalahti and Kylmäkoski Ni-Cu ores was analyzed. The results have been compared with earlier sulfur isotope analyses of the Vammala, Laukunkangas and Oravainen Ni-Cu occurrences. Altogether 183 analyses were
H. Papunen, M. Mäkelä
doaj   +1 more source

Holocene Spatiotemporal Redox Variations in the Southern Baltic Sea

open access: yesFrontiers in Earth Science, 2021
Low oxygen conditions in the modern Baltic Sea are exacerbated by human activities; however, anoxic conditions also prevailed naturally over the Holocene. Few studies have characterized the specific paleoredox conditions (manganous, ferruginous, euxinic)
Dalton S. Hardisty   +5 more
doaj   +1 more source

Hartree-Fock-Bogoliubov Calculations in Coordinate Space: Neutron-Rich Sulfur, Zirconium, Cerium, and Samarium Isotopes [PDF]

open access: yes, 2003
Using the Hartree-Fock-Bogoliubov (HFB) mean field theory in coordinate space, we investigate ground state properties of the sulfur isotopes from the line of stability up to the two-neutron dripline ($^{34-52}S$).
A. Blazkiewicz   +8 more
core   +1 more source

Folding model analysis of elastic and inelastic proton scattering on Sulfur isotopes [PDF]

open access: yes, 2002
The folding formalism for the nucleon-nucleus optical potential and inelastic form factor is applied to study elastic and inelastic proton scattering on 30-40S isotopes. A recently developed realistic density dependent M3Y interaction, well tested in the
Alarcon   +61 more
core   +3 more sources

Tropospheric carbonyl sulfide mass balance based on direct measurements of sulfur isotopes

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2020
Significance Assessment for large-scale photosynthesis-climate feedbacks is needed. Carbonyl sulfide (COS) is an emerging proxy for the terrestrial photosynthesis. This proxy is limited by uncertainties related to the magnitudes of COS sources and sinks.
Chen Davidson, A. Amrani, A. Angert
semanticscholar   +1 more source

Microbial communities and their roles in the Cenozoic sulfurous oil reservoirs in the Southwestern Qaidam Basin, Western China

open access: yesScientific Reports, 2023
The latest discovery of sulfurous natural gas marked a breakthrough in the Cenozoic natural gas exploration in the southwestern margin of Qaidam Basin. The 16S rRNA analyses were performed on the crude oil samples from H2S-rich reservoirs in the Yuejin ...
Yue Jiao   +5 more
doaj   +1 more source

Sulphur-isotope compositions of pig tissues from a controlled feeding study [PDF]

open access: yes, 2017
Sulphur-isotope determinations are becoming increasingly useful for palaeodietary reconstruction, but knowledge of isotopic discrimination between diet and various tissues remains inadequate. In this study, we explore the sensitivity of δ34Stissue values
Evershed, Richard P.   +6 more
core   +2 more sources

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