This preference is based on the evidence that the chronological data in the fifth and eleventh chapters of Genesis as given in the scripture used by the early Christian church (the LXX) are much closer to the values specified by Moses than are those in the Masoretic text (MT) of the ninth century AD.
As a set of numbers related to human genealogy, those given in the LXX are much more reasonable and internally consistent than those in the MT.
; a is a parameter which is related to the rate at which A re-approaches equilibrium after a disturbance from its equilibrium value A in the air from which it obtained its carbon.
The biblical constraints on a time scale are combined with the constraints provided by carbon-14 data in the formulation of a mathematical relationship for conversion between C-14 age and real time.
This relationship is developed for convenient adaptation to varied interpretations of the biblical time constraint specifications, and is presented by an equation of exponential terms, a tabulation of useful data points, and a graph.
The large amount of organic material, and probably some of the carbonate sediment, buried during the Flood and now existing only as fossil material indicates that prior to the Flood the world inventory of C-14 was associated with a much larger amount of C-12 than has been the case since the Flood.
This is in agreement with the evidence that A for this material was about or less than ).
The retrograde increase in biosphere C-14/C-12 ratio between 3500 BP and 7000 BP required by the Ferguson Bristlecone Pine dendrochronology reaches about 10% over the present value.
A further increase up to about 50% going back to 20,000 BP has been proposed on the basis of recent dating of corals by both the uranium-thorium (U-Th) method and the C-14 method (Bard et al. In my judgment, a correlation of real time with U-Th age has even greater uncertainty than with C-14 age.For a treatment that encompasses both of these traditions I can take as the biblical specification for the date of the Flood the approximation 5000500 BP (a simplification of the straightforward 4950450).Some interpreters contend that the dates for the Flood given in the preceding paragraph should be reduced by 215 years.This view places Galatians in the category specified in 2 Peter .I prefer to place the Flood at 5350 BP, rather than the 5000 BP which I will use in the following mathematical treatment.What motivation could there have been for such reduction?