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Rb sr method of dating

But the Cardenas Basalt cannot be younger than the plateau flows, due to the geological relationships discussed in the first section of this document.

Austin says that his isochron age is the result of a "" (1992, p. In other words, Austin claims that he has produced a seemingly reliable isochron age which must necessarily be wrong, and therefore the Rb-Sr isochron dating method, which is considered to be among the more reliable of radiometric dating methods, must be considered suspect.

The canyon must be younger than the rock layers that it cuts into.

They would argue for a much shorter absolute timescale than mainstream geologists would accept, but the relative sequence is agreed upon by all parties. Steven Austin, chairman of the Geology Department at the Institute for Creation Research, claimed (1992) that he had derived an isochron for the plateau flows, which indicates an age of about 1.3 billion years.

In this article I shall point out some other dating methods which work the same way as the Rb-Sr method.

The reader who has not read the article on the Rb-Sr method will find this present article almost completely incomprehensible, and should go back and read it.

A figure expressible in billions of years is ideal.

In the Rb-Sr method, we used Sr, and it will be equally valid.

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The table below shows some sets of three isotopes which can be treated like rubidium and strontium for the purposes of dating; the table also shows the half-life of the parent and its decay mode.