Direct dating of fossils are james lafferty and eve hewson dating

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direct dating of fossils-89

Absolute dating is the process of determining an age on a specified chronology in archaeology and geology.

Some scientists prefer the terms chronometric or calendar dating, as use of the word "absolute" implies an unwarranted certainty of accuracy.

Nearly all fossilized bone is recrystallized after burial; however, the durations of recrystallization are typically poorly constrained. (2011) present Lu-Hf geochronology data for 72 bones that showed prolonged episodes of trace-element uptake and open system behavior during recrystallization.

Modeled durations range from hundreds to millions of years (Herwartz et al., 2011; Koenig et al., 2009, and references therein). Both studies demonstrate that the chemical complexity of fossilized bones led to a wide range of ages.

Fassett et al.’s failure to present geochemical data that provide insight into the process and duration of recrystallization undermines their conclusion that their age estimates are closely associated with time of death and early fossilization of the dinosaurs in question.

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