Question

In February 2008, a team of Canadian scientists revealed rare new horseshoe crab fossils from 445 million year-old Ordovician age rocks in central and northern Manitoba, which are about 100 million years older than any previously known forms (this is true by the way). An analysis of the surrounding rock revealed that 61.27% of the initial Uranium-235 remains. The half-life for Uranium-235 is 704 million years. Assume the radioactive decay is second order. Should we accuse the palaeontologist team of fraud?

Answer 1

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