| Autor: |
McArthur, J.M., Coleman, M.L., Bremner, J.M. |
| Zdroj: |
Journal of the Geological Society; December 1980, Vol. 137 Issue: 6 p669-673, 5p |
| Abstrakt: |
δ13C values for carbonate in francolite clearly distinguishes between authigenic varieties precipitated within anoxic sediments and diagenetic varieties produced by phosphatization of carbonates. δ18O values are characteristic of a deposit and, whilst apparently in equilibrium with pore-water in Recent deposits, are probably unreliable as palaeotemperature indicators generally. The isotopic composition of carbonate may therefore be used as a pointer to the mechanism of origin of francolite. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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