Yet much research effort remains to be done to make further inroads into not only uncovering the flaws intrinsic to these long-age dating methods, but towards a thorough understanding of radioisotopes and their decay during the earth’s history within a biblical creationist framework.
These ages suggest that the mineralization in the Kafang skarn deposit was genetically assoicatted to the Laoka granite.
The Re contents of molybdenite indicate that ore-forming materials are derived from mantle and crust.
(1969), have not been accompanied by any comparable improvement in the accuracy of the decay constants (Begemann et al.
2001; Steiger and Jäger 1977), in spite of ongoing attempts (Miller 2012).
In any case, the half-life of Re has been shown to be dependent on environmental conditions such as the degree of ionization.
Fluctuations in nuclear decay rates have also been observed to correlate with solar activity for a few other isotopes, while there is evidence decay rates of the radioisotopes used for rock dating have not been constant in the past. Mise en évidence de la radioactive naturelle du rhenium par la méthode des émulsions nucléaires.
Thus the per year respectively have now been adopted for standard use by the uniformitarian geological community. This value is essentially identical to the best of the recent determinations using groups of iron meteorites.
These values are based on determinations recalibrating Re-Os model ages of molybdenites by forcing them (essentially by circular reasoning) to agree with the U-Pb concordia-Pb-Pb intercept ages of zircons from the same 11 magmatic-hydrothermal systems dating from ca. It is also within the ± uncertainty range of the half-life values obtained by the best of the physical direct counting and in-growth experiments.
Re-Os dating of five molybdenite separated from the Kafang skarn ore bodies gives an isochron age of 83.4 ± 2.1Ma and model age ranges from 82.95 ± 1.16 to 83.54 ± 1.31 Ma.
This age is in good agreement with Laoka granite zircon LA-ICP-MS U-Pb age(85 ± 0.85Ma).
We also work with other sulfide and oxide minerals such as pyrite, arsenopyrite, chalcopyrite, and magnetite to provide age and source information through Re-Os isochrons.