A high-precision SIMS analysis technique has been established for oxygen, sulfur, and iron isotope ratios and applied to a wide range of geoscience research areas using a Cameca IMS-1280 at the Wisconsin Secondary Ion Mass Spectrometer Laboratory (WiscSIMS). Precision and accuracy of 0.3‰ is achieved routinely for the measurement of 18O/16O ratio using multicollection Faraday Cup (FC) detectors...

Abstract Stable hydrogen, carbon, nitrogen, oxygen and sulfur (HCNOS) isotope compositions expressed as isotope-delta values are typically reported relative to international standards such Vienna Standard Mean Ocean Water (VSMOW), Peedee belemnite (VPDB) or Cañon Diablo Troilite (VCDT). These chosen by convention the calibration methods used realise them in practice undergo occasional changes. ...

Cretaceous kimberlites in southern Africa have been suggested to host deeply subducted material their mantle sources based on radiogenic isotope systematics. However, potential contributions the volatile budget, including sulfur, of these is unclear. Here we report new petrographic, geochemical, and isotopic data sulfides sulfates sub-volcanic from Kimberley, South Africa. The examined were div...