Application of pre-anthropogenic 129-iodine in hydrogeology and chemical oceanography
- Univ. of Rochester, NY (United States)
Pre-bomb Pulse {sup 129}I/I ratios have been measured by AMS in samples from recent marine sediments and sedimentary basin brines. Results from spatially distributed coastal sediments point to an initial ratio of 1500 x 10{sup -15} for iodine that is recycled at the sediment/water interface. Lower ratios measured in cores influenced by a riverine flux of sediment suggest the application of this system for dating ancient organic material in the marine environment. {sup 129}I/I ratios measured in saline formation waters from the U.S. Gulf Coast Basin show evidence for large-scale upward flow, with source ages millions of years older than host formation ages. Ratios from several oilfields from Louisiana, Texas, and offshore, corrected for a potential fissiogenic component, fall in a narrow range, and suggest a source age of early Cenozoic for brines and associated hydrocarbons.
- OSTI ID:
- 126697
- Report Number(s):
- CONF-950402-; TRN: 95:006086-0708
- Resource Relation:
- Conference: 209. American Chemical Society (ACS) national meeting, Anaheim, CA (United States), 2-6 Apr 1995; Other Information: PBD: 1995; Related Information: Is Part Of 209th ACS national meeting; PB: 2088 p.
- Country of Publication:
- United States
- Language:
- English
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