Results 11 to 20 of about 7,353 (249)
Presenting the Compendium Isotoporum Medii Aevi, a Multi-Isotope Database for Medieval Europe
Measurement(s) Isotopes Technology Type(s) Mass Spectrometry Factor Type(s) Carbon isotopes • nitrogen isotopes • sulfur isotopes • oxygen isotopes • strontium isotopes Sample Characteristic - Organism Humans • Animals • Plants Sample Characteristic ...
Carlo Cocozza +4 more
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Sulfur Stable Isotope Discrimination in Rice: A Sulfur Isotope Mass Balance Study
The use of sulfur (S) stable isotopes to study S metabolism in plants is still limited by the relatively small number of studies. It is generally accepted that less S stable isotope discrimination occurs during sulfate (SO42–) uptake. However, S metabolism and allocation are expected to produce separations of S stable isotopes among the different plant
Viviana Cavallaro +6 more
openaire +3 more sources
Sulfur isotopes reveal agricultural changes to the modern sulfur cycle
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
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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
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Sulfur isotopes in Finnish nickel-copper occurrences [PDF]
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
Geochemical transformations of sulfur in salt lakes (Transbaikalia) [PDF]
The water column in brackish and saline lakes hosts various forms of sulfur including sulfide (hydrosulfide), elemental, thiosulfate, and sulfate sulfur.
Borzenko Svetlana
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Nature of Isomerism in Exotic Sulfur Isotopes [PDF]
We clarify the origin of the anomalously hindered $E2$ decay from the $4^+_1$ level in $^{44}$S by performing a novel many-body analysis in the shell model. Within a unified picture about the occurrence of isomerism in neutron-rich sulfur isotopes, the $4^+_1$ state is demonstrated to be a $K=4$ isomer dominated by the two-quasiparticle configuration ...
Utsuno, Yutaka +4 more
openaire +3 more sources
Separating the contributions of anaerobic oxidation of methane and organoclastic sulfate reduction in the overall sedimentary sulfur cycle of marine sediments has benefited from advances in isotope biogeochemistry.
Gilad Antler +3 more
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Holocene Spatiotemporal Redox Variations in the Southern Baltic Sea
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
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

