Temperature and timing of diagenesis from carbonate clumped isotope thermometry and thermochronology

Abstract

Temperatures of diagenesis in sedimentary basins are commonly inferred from tools that can constrain rock thermal histories or peak temperatures, but not the timing or temperature of crystal growth for major diagenetic phases. We demonstrate a technique to resolve both the temperature and timing of growth for distinct cementation, re-rystallization, and replacement phases using 'clumped isotope' paleothermometry–a new tool based on measurement of the ^(13)C-^(18)O bond enrichment in carbonates.

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