 | |||||||||||||||||||||||
 | |||||||||||||||||||||||
  | |||||||||||||||||||||||
 | |||||||||||||||||||||||
The Sr-O-C isotope composition of authigenic carbonate cements provides information on reservoir and basin fluid composition at the time the cement formed: • 87Sr/86Sr isotope ratios of carbonate cements reflect the 87Sr/86Sr ratios of the precipitating fluid. Combined with SrRSA and seawater Sr data, the Sr isotopes in cement can provide a relative timing of diagenesis. • Oxygen isotope data can constrain precipitation temperature or water oxygen isotope composition for authigenic cements. • Carbon isotopic composition of carbonate cements may provide an indication of possible sources of dissolved inorganic carbon. |  | ||||||||||||||||||||||
 | |||||||||||||||||||||||
 | |||||||||||||||||||||||
 | |||||||||||||||||||||||
 | |||||||||||||||||||||||
 | |||||||||||||||||||||||
| | | | | | | | | | | | | | | | | | | | | | | |