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28-Oct-2015 04:24

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For a century, the radioactive decay of unstable elements into more stable ones has been used as a natural clock to estimate the age of earth materials.

Even the solar system has been dated using one of these systems, by measuring the amount of a decaying element and comparing it to the amount of its stable (decayed) daughter material in meteorites.

In a article on Brennecka’s findings, Gerald Wasserburg, emeritus professor of geology at Caltech, commented, “Everybody was sitting on this two-legged stool claiming it was very stable, but it turns out it’s not.” To be fair, however, it wasn’t “everybody” who claimed this.

New data collected by secular researchers has confirmed what creation scientists discovered decades ago—geologists’ assumptions about radioactive decay are not always correct.

The current standard age assigned to the solar system of 4.6 billion years was determined by studying the Uranium-to-Lead decay systems in meteorites, which are assumed to have formed before the planets did.

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These discordant dates should not be evident if the assumption of rate constancy—which underlies radioisotope dating of igneous materials and is used to support the “billions of years” age for the solar system—is accurate.Gregory Brennecka of Arizona State University and colleagues measured the relative amounts of Uranium 238 to Uranium 235 from several samples taken from the large Allende meteorite, named for the village in Mexico near where it landed in 1969.With the more sensitive instrument, they detected small differences in isotope ratios from different inclusions within the same meteorite..It is totally up to you whether or not to enter the premium video chat.

The varying quantities of these isotopes call into question the calculated age of the solar system, since “one of the equation’s assumptions — that certain kinds of uranium always appear in the same relative quantities in meteorites — is wrong.” CAIs are “calcium-aluminum-rich inclusions” found in the meteorite.

Though the measurements of these elements are very precise, the assumptions upon which their usefulness as a clock rests are questionable at best.



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