One radioisotope used for the dating of rocks and fossils
Find a fossil with a measured ratio of 16 trillion to 1 (C12 to C14)This means 4 half-lives have expired giving a date of about 23,000 years What if the ratio started at:2 trillion to 1: 3 half-lives instead of 4 – age 17,0008 trillion to 1: 1 half-life instead of 4 – age 5,000Elizabeth K. Michael, “Twenty-five Years of Radiocarbon Dating,”American Scientist, Sep/Oct 1974“We know that the assumption that the biospheric inventory of C14 has remained constant over the past 50,000 years or so is not true.”The assumption carbon-14 dating is based upon is FALSER. Taylor, “Major Revisions in the Pleistocene Age Assignments for North American human Skeletons by C-14 Accelerator Mass Spectrometry”, American Antiquity, Vol. In one study of eleven sets of ancient human bones, all were dated at about 5,000 radiocarbon years or less. Lee, “Radiocarbon: Ages in Error,”Anthropological Journal of Canada, 1981, pp.
26-27.“The troubles of the radiocarbon dating method are undeniably deep and serious.
Meaning they are able to calculate how long ago they've been decaying from, and how old the rock is.
The convenient property of this phenomenon is that a certain parent isotope will ALWAYS decay to a certain daughter isotope.
The rate of decay from parent to daughter isotope is called the half-life (time for half of the parent to become the daughter).
He started flipping through to find our next assignment . “Sara, did you do all of these geologic timescale copies?! If you ask an evolutionist what the scientific evidence for evolution or for the age of the earth being “4.6 billion” years old, they will probably point to the geologic column and radioisotope rock dating.
and continued to flip through the thick section of papers. The geologic timescale, or geologic column, is basically a chart used to divide and classify rock layers and the fossils found in them. (read previous articles about radioisotope dating here).