Dating age formula wikipedia


16-Aug-2020 13:11

Below is a table of radiometric ages derived from groups of meteorites: As shown in the table, there is excellent agreement on about 4.5 billion years, between several meteorites and by several different dating methods.Note that young-Earthers cannot accuse us of selective use of data -- the above table includes a significant fraction of all meteorites on which isotope dating has been attempted. 286) , less than 100 meteorites have been subjected to isotope dating, and of those about 70 yield ages with low analytical error.The ampersand ( & ) is a concatenation symbol in Excel.

If you don't feel like dragging out a calendar, a simple spreadsheet formula can come to the rescue.

Rocks of this age are relatively rare, however rocks that are at least 3.5 billion years in age have been found on North America, Greenland, Australia, Africa, and Asia.

While these values do not compute an age for the Earth, they do establish a lower limit (the Earth must be at least as old as any formation on it).

However, the test for these assumptions is the plot of the data itself.

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The actual underlying assumption is that, if those requirements have not been met, there is no reason for the data points to fall on a line.Further, the oldest age determinations of individual meteorites generally give concordant ages by multiple radiometric means, or multiple tests across different samples.



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