Method of radioactive dating Antys chat live free
When the results for a number of rock samples are plotted on a graph and form a straight line, the researcher can calculate an age for the samples.
But Faure warns his readers not to accept the calculated age without question. In their minds, the key is the way the results are . The only way we can know it is a mixing line is if the calculated age is wrong—and the only way one can ‘know’ if an age is right or wrong is to have a pre-existing belief about what the age should be. measured isochron ages of a rock called amphibolite sampled from south-east India.
Zircons using the uranium-lead method gave an age of 572 million years.
Three different samples; three different methods; three different results. They said the different ages are because the huge pluton cooled slowly over millions of years and the different minerals were affected in different ways.
RADIOMETRIC TIME SCALE The discovery of the natural radioactive decay of uranium in 1896 by Henry Becquerel, the French physicist, opened new vistas in science. Radiometric Dating Author: Chira Endress Last modified by: tanya Created Date: Many geologists claim that radiometric “clocks” show rocks to be millions of years old.
In his well-known textbook on isotope geology, Gunter Faure explains the various radioactive dating methods, including the so-called isochron method.
Surprisingly, these conflicting results do not unsettle mainstream geologists.
They genuinely believe the world is billions of years old, and the conflicting results do not cause them to question their belief.
· For example Carbon 14 is often the method of choice for scientists dating organic artifacts ...
use of one or more of the other age-determination methods.
Most people think that radioactive dating has proven the earth is billions of years old.