Sulfur Isotopes

NSO fraction

Whole Oil

Sulfur isotope signatures (δ34S) are a subtle, yet underused, tool for characterizing and correlating crude oil samples and systems. These signatures are indicative of the origin of the sulfur in oil samples and given that the source of most sulfur in oils is contemporaneous seawater sulfate these signatures can also be indicative of geologic age.  At GeoMark we can analyze sulfur isotope signatures in whole oil samples with a weight % composition as low as 0.05%.