Reasons radiometric dating is accurate

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Ian T. Analytical chemistry. US Geological Survey Bulletin Isochrons require more measurements than single parent-to-daughter ratios, so most dates are based on parent-to-daughter ratios. Gill CH. While uranium is water-soluble, thorium and protactinium are not, and so they are selectively precipitated into ocean-floor sedimentsfrom which their ratios are measured. Other critics, perhaps more familiar with the data, question certain aspects of the quality of the fossil record and of its dating.

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It is accurate to within a few thousand years.

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Radiometric Dating Does Work!

Radiometric dating depends on the chemistry and ratios of different elements. To me this indicates a high melting point for its minerals, as those with a low melting point might be expected to concentrate in the magma remaining after others crystallized out. Follow us: Circular Reasoning or Reliable Tools? This is not the only dating study to be done on an historic lava flow. The boundary between these periods the K-T boundary is marked by an abrupt change in fossils found in sedimentary rocks worldwide. Older dates may change by a few million years up and down, but younger dates are stable.

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