An experimental test for the mass independent isotopic fractionation mechanism proposed for ozone
Sign Up to like & getrecommendations! Published in 2019 at "Chemical Physics"
DOI: 10.1016/j.chemphys.2019.03.024
Abstract: Abstract Ozone exhibits large and mass independent isotopic fractionations (MIF) in oxygen isotope ratios relative to molecular di-oxygen (O2) from which it is formed. An interpretation of this effect was proposed based on the behavior… read more here.
Keywords: independent isotopic; mass independent; isotopic; fractionation ... See more keywords
Can organic haze and O2 plumes explain patterns of sulfur mass-independent fractionation during the Archean?
Sign Up to like & getrecommendations! Published in 2019 at "Earth and Planetary Science Letters"
DOI: 10.1016/j.epsl.2019.115767
Abstract: Abstract The existence of mass-independently fractionated sulfur in Archean rocks is almost universally accepted as evidence for low atmospheric O2 and O3 concentrations at that time. But the detailed patterns of the Δ 33 S… read more here.
Keywords: haze; independent fractionation; organic haze; mass independent ... See more keywords
Mass-Independent Fractionation of Even and Odd Mercury Isotopes during Atmospheric Mercury Redox Reactions.
Sign Up to like & getrecommendations! Published in 2021 at "Environmental science & technology"
DOI: 10.1021/acs.est.1c02568
Abstract: Mass-independent fractionation (MIF) of stable even mass number mercury (Hg) isotopes is observed in rainfall and gaseous elemental Hg0 globally and is used to quantify atmospheric Hg deposition pathways. The chemical reaction and underlying even-Hg… read more here.
Keywords: mercury isotopes; independent fractionation; hg0; mass independent ... See more keywords
Five-S-isotope evidence of two distinct mass-independent sulfur isotope effects and implications for the modern and Archean atmospheres
Sign Up to like & getrecommendations! Published in 2018 at "Proceedings of the National Academy of Sciences of the United States of America"
DOI: 10.1073/pnas.1803420115
Abstract: Significance Anomalous sulfur isotopic compositions preserved in sedimentary rocks older than ∼2.5 billion years have been widely interpreted as the products of UV photolysis of sulfur dioxide in an anoxic atmosphere and used to track… read more here.
Keywords: evidence; mass independent; sulfur; sulfur isotope ... See more keywords
On apparent mass-independent fractionation (MIF) signatures from phase partitioning at equilibrium
Sign Up to like & getrecommendations! Published in 2019 at "Isotopes in Environmental and Health Studies"
DOI: 10.1080/10256016.2019.1688318
Abstract: ABSTRACT The chance of apparent isotope anomalies either in closed systems at equilibrium or during Rayleigh processes is investigated. The term ‘apparent’ is chosen to highlight that only mass-dependent fractionation (MDF) processes are considered. A… read more here.
Keywords: mif signatures; apparent mass; mass independent; fractionation ... See more keywords