Claim CF220:

Th-230 and U-236 exist on the moon. But these isotopes are so short-lived that we would not expect any still to be around if the moon were billions of years old.

Source:

Wysong, R. L., 1976. The Creation-Evolution Controversy, Midland, MI: Inquiry Press, pp. 177-178.

Response:

  1. Both nucleotides are formed by ongoing processes. 230Th is an intermediate decay product of 238U, which has a half-life of 4.468 billion years. 236U is produced in trace amounts by the capture of slow neutrons.

Links:

Matson, Dave E., 1994. How good are those young-earth arguments? http://www.talkorigins.org/faqs/hovind/howgood-yea.html#proof6
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created 2003-5-5