fossils and carbon dating

YEC

quote:

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There are the Cardenas Basalts of the Grand Canyon Supergroup at the bottom of Grand Canyon and the Uinkaret plateau lava flows which are much higher up.
Rb/Sr radioisotope measurements were made of these rocks. The Uinkaret lava flows were measure and computed to be ~1.3 Billion years old while the lower Cardenas Basalts were measure and computed to be ~1.0 Billion years old.

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Anomaly?

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Assumming you are referring to the ICR study, no, it's bad science. The study in question was based on dating various samples at forming an isochron. This is a complex sample, but basically by doing this you can determine the last date the various samples had in common. So, if you take a set of samples of different rocks (or rocks from different positions within the flow), radio date them and plot the sample, the isochron will show the date they were last molten. In order to produce a true date of a lava flow, the samples must be homogenous - from the same lava flow. However, none of the ICR samples were homogenous. Thus a wrong date was returned. However, it is in all probability a valid date - because the various samples were last homogenous when the original rock that later formed the lava flow was laid down.This the ICR has managed to prove the antiquity of the Earth.------------------
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