How old is the earth radiometric dating sex dating pay by paypal
The slope of the line determines the age of the rock, and the closeness of fit is a measure of the statistical reliability of this conclusion.
The graphic below gives the general idea, and more technical detail can be found here. As with any experimental procedure in any field of science, measurements are subject to certain “glitches” and “anomalies”, as noted in the literature.
Dalrymple also notes scientists do not rely solely on the self-checking nature of radiometric dating to confirm their results.
They repeat their measurements to eliminate laboratory error, and wherever possible they apply multiple dating procedures to the same rock sample.
The overall reliability of radiometric dating was addressed in some detail in a recent book by Brent Dalrymple, an expert in the field.
He argues the few instances in which radiometric dating has produced anomalous results “may be due to laboratory errors (mistakes happen), unrecognised geologic factors (nature sometimes fools us), or misapplication of the techniques (no-one’s perfect)”.
Dating schemes based on rates of radioactivity have been refined and scrutinised over several decades, and the latest high-tech equipment permits reliable results to be obtained even with microscopic rock samples.
Radiometric dating is self-checking, because the data (after certain preliminary calculations are made) are fitted to a straight line (called an isochron) by means of standard linear regression methods of statistics.
Some people have suggested the most hardcore flat-Earth believers did not give up their fight until they could hold a GPS receiver in their hand that gave their latitude-longitude position.
Indeed, there is no known physical phenomenon that can yield consistent results in many thousands of measurements, year after year, except one: the isotopic decay in these geological specimens, measured by radiometric dating.
As biologist Kenneth Miller observed: “The consistency of [radiometric] data … Bailey does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.
While there are numerous experimental methods used to determine geologic ages, the most frequently employed technique is radiometric dating, based on measurements of various radioactive isotopes in rocks.
The phenomenon of radioactivity is rooted in the fundamental laws of physics and follows simple mathematical formulae, taught to all calculus students.