Sulfur sources of sedimentary “buckshot” pyrite in the Auriferous Conglomerates of the Mesoarchean Witwatersrand and Ventersdorp Supergroups, Kaapvaal Craton, South Africa. Mineralium Deposita. :1-25.. 2014.
A multiple sulfur and organic carbon isotope record from non-conglomeratic sedimentary rocks of the Mesoarchean Witwatersrand Supergroup, South Africa. Precambrian ResearchPrecambrian Research. 216-219:208-231.. 2012.
High-Precision Measurements of 33S and 34S Fractionation during SO2 Oxidation Reveal Causes of Seasonality in SO2 and Sulfate Isotopic Composition.. Environmental science & technologyEnvironmental science & technology. 47(21):12174-83.. 2013.
Development of a spectroscopic technique for continuous online monitoring of oxygen and site-specific nitrogen isotopic composition of atmospheric nitrous oxide.. Analytical chemistryAnalytical chemistry. 86(3):1726-34.. 2014.
Sulfur isotope fractionation during oxidation of sulfur dioxide: gas-phase oxidation by OH radicals and aqueous oxidation by H2O2, O3 and iron catalysis. Atmospheric Chemistry and PhysicsAtmospheric Chemistry and Physics. 12(1):407-423.. 2012.
Exploring deep microbial life in coal-bearing sediment down to 2.5 km below the ocean floor. Science. 349:420-424.. 2015.
Development of a new methane tracer: kinetic isotope effect of 13CH3D+ OH from 278 to 313K.. Atmospheric Chemistry & Physics Discussions. 15. 2015.
Relative rate study of the kinetic isotope effect in the< sup> 13 CH< sub> 3 D+ Cl reaction. Chemical Physics Letters. 605:152–157.. 2014.
Manganese-oxidizing photosynthesis before the rise of cyanobacteria. Proceedings of the National Academy of SciencesProceedings of the National Academy of Sciences. 110(28). 2013.
Sulfur mass-independent fractionation in liquid phase chemistry: UV photolysis of phenacylphenylsulfone as a case study. Geochimica et Cosmochimica ActaGeochimica et Cosmochimica Acta.. 2012.
An oligotrophic deep-subsurface community dependent on syntrophy is dominated by sulfur-driven autotrophic denitrifiers. Proceedings of the National Academy of Sciences. 113:E7927-E7936.. 2016.
Multiple sulfur isotope signatures of sulfite and thiosulfate reduction by the model dissimilatory sulfate-reducer, Desulfovibrio alaskensis str. G20. Frontiers in Microbiology. 5. 2014.
Evidence for Microbial Carbon and Sulfur Cycling in Deeply Buried Ridge Flank Basalt. ScienceScience. 339(6125):1305-1308.. 2013.
Effect of 3-nitrooxipropanol on methane and hydrogen emissions, methane isotopic signature, and ruminal fermentation in dairy cows. Journal of Dairy Science. 99(7):5335-5344.. 2016.
Decline in oceanic sulfate levels during the early mesoproterozoic. Precambrian Research. 258:36-47.. 2015.
Rapid oxygenation of Earth’s atmosphere 2.33 billion years ago. Science Advances. 2:e1600134.. 2016.
Tellurium isotopic composition of the early solar system - A search for effects resulting from stellar nucleosynthesis, 126Sn decay, and mass-independent fractionation. Geochimica et Cosmochimica ActaGeochimica et Cosmochimica Acta. 69(21):5099-5112.. 2005.
Identification of sulfur sources and isotopic equilibria in submarine hot-springs using multiple sulfur isotopes. Geochimica et Cosmochimica Acta.. 2015.
Consumption of atmospheric hydrogen during the life cycle of soil-dwelling actinobacteria. Environmental Microbiology Reports. 6:226–238.. 2014.
Questions regarding Precambrian sulfur isotope fractionation.. ScienceScience. 292(5524):1959.. 2001.
S-33 constraints on the seawater sulfate contribution in modern seafloor hydrothermal vent sulfides. Geochimica et cosmochimica …Geochimica et cosmochimica …. 71(5):1170-1182.. 2007.
New insights into Archean sulfur cycle from mass-independent sulfur isotope records from the Hamersley Basin, Australia. Earth and planetary science lettersEarth and planetary science letters. 213(1-2):15-30.. 2003.
Sulfur-33 constraints on the origin of secondary pyrite in altered oceanic basement. Geochimica et Cosmochimica ActaGeochimica et Cosmochimica Acta. 87:323-340.. 2012.
Predictive isotope model connects microbes in culture and nature. Proceedings of the National Academy of Sciences.. 2014.
Early evolution of atmospheric oxygen from multiple-sulfur and carbon isotope records of the 2.9 Ga Mozaan Group of the Pongola Supergroup, Southern Africa. South African Journal of GeologySouth African Journal of Geology. 109(1-2):97-108.. 2006.