title: Application of sulphur isotopes for stratigraphic correlation.
abstract: The sulphur isotopic composition of dissolved sulphate in seawater has varied considerably through time. Certain time intervals are characterised by distinct variations and a relatively high rate of change. These relatively rapid fluctuations allow for correlation of sediment sections using sulphur isotopes. Sulphur isotope reconstructions based on the analysis of carbonate associated sulphate or marine barite result in sulphur isotope records with an age resolution of 1-5 million years (Ma), and for some age intervals the resolution is<0.25 Ma. At these specific time intervals, where higher resolution records exist and excursions in the record are identified, the trends could be used for stratigraphic correlations. Such records are particularly useful in sections from deep marine sites that lack biostratigraphic controls or where biozones do not provide sufficient resolution.
authors.affiliation: Institute of Marine Sciences , University of California, Santa Cruz, CA, USA. apaytan@ucsc.edu
authors.forename: Adina
authors.initials: A
authors.lastname: Paytan
authors.forename: Ellen T
authors.initials: ET
authors.lastname: Gray
authors.forename: Zhongwu
authors.initials: Z
authors.lastname: Ma
authors.forename: Andrea
authors.initials: A
authors.lastname: Erhardt
authors.forename: Kristina
authors.initials: K
authors.lastname: Faul
mesh_terms: D001466:Barium Sulfate / Q000032:analysis; D019419:Evolution, Planetary; D019015:Geologic Sediments / Q000737:chemistry*; D005844:Geology / Q000379:methods*; D012623:Seawater / Q000032:analysis; D013431:Sulfates / Q000032:analysis; D013460:Sulfur Isotopes / Q000032:analysis
chemical_list: D013431:Sulfates; D013460:Sulfur Isotopes; D001466:Barium Sulfate