C14 dating coal is 17 a good age to start dating
Nonetheless, dinosaur bone apatite had been successfully RC dated in the late 1980's/early 1990's and significant amounts of C-14 were detected and reported.
The data was challenged by Thomas Stafford as poor science due to assumed contamination from modern C-14 with younger surficial calcium carbonate.
The problem: If the material is too old, the small amount of C14 present may not decay in the measurement interval.
Newer, more accurate techniques use mass spectroscopy. The most common contaminant is nitrogen, 0.1% in gem-quality diamonds.
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Its geologic location was the Hell Creek Formation in the State of Montana, United States of America.The age of the clay was estimated to be between 5000-50,000 years old by J. All were less than 40,000 RC years except for 21; most of the latter 21 were about the same age as for unfossilized wood from drill core samples deep in the permafrost of Prudhoe Bay Alaska: (a) 43,380 ± 380 RC years at 60m depth Vasil'chuk et al. Agenbroad, "The warm spring waters that infiltrated the sinkhole leached out the collagen in the bones." The RC ages for a musk ox carcass frozen in Alaskan, USA, muck gave dates of 24,140 ± 2200 years and 17,210 ± 500 RC years BP respectively for scalp muscle tissue and hair according to R. One case in point came from the study of tektites in Victoria, Australia [Lake Torrens and Lake Eyre regions] called australites. Younger ages for fission tracks were ascribed to partial annealing of fission tracks by reheating on the earth's surface. concluded: "Although RC ages were inconsistent, field work on geology of australite occurrences favored the ‘younger' C-14 age of charcoal believed associated with australites, as well as geologic evidence, indicated age between last glacial and 6000-7000 BP." 50 times younger RC dates suggest that a major asteroid impact occurred in that region only several thousand years ago not 800,000 years BP. RC dating of core drilling specimens from the more famous Chicxalub crater in the Yucatan Peninsula of Mexico should also be RC dated since the explosion of the volcano or asteroid that produced that crater is thought to have caused the supposed demise of the dinosaurs 65 millions years ago.