Re os age dating
Re-Os isotopes natural hydrocarbons are directly related to source-rock Re-Os isotope character and in some cases Re-Os geochronology of hydrocarbons is possible.
For sulfide minerals, Re-Os geochronology has direct application to the timing and duration of hydrothermal ore deposit formation.
Suitable lithologies for Re-Os geochronology include black shales and organic-rich carbonates.
In addition to geochronology data, the Re-Os geochronometer provides the Os isotope composition (Os = 0.12) derived from cosmic dust and hydrothermal alteration of oceanic crust.
As a result, accurate and precise ages are difficult to determine for these successions, which hampers attempts to correlate successions across different regions.
Recent studies with the Re-Os geochronometer are beginning to improve our understanding of the biological, geochemical, atmospheric, climatic and tectonic transformations recorded in the Proterozoic rock record.The Rhenium-Osmium (Re-Os) geochronometer is a novel tool for dating ancient sedimentary successions.