25 Jan '16 21:12>
Originally posted by RJHindsI watched the video to the end. Dr. B is articulate, I will give him that, and the moderator kept the conversation on course. Better quality than most of the tubeyou videos we have been served here, I must say.
[b]Dr. John Baumgardner Discusses Evidence for a Young Earth
John Baumgardner PhD, is geophysicist. Dr. Baumgardner was employed at one of the most prestigious research institutes -- Los Alamos National Laboratory, in New Mexico. He has developed a 3D computer program called TERRA which models Earth's plate tectonics. This was such an important and u ...[text shortened]... those committed to material causes will dismiss the evidence.
[youtube]bNcLmHtCjqw[/youtube][/b]
For those who may not bother to watch the whole thing, I will summarize here: Dr. B notes that there are two ‚internal clocks’ for measuring the age of rocks: a) the degradation of uranium to lead, and b) the leaching out of helium. The discrepancy between the two is great: that for uranium-to-lead seems to yield ranges in billions of years, whereas that of helium only thousands. Dr. B contends that in the core samples he and his team examined, the uranium date suggested an age of 1.5 billion years, whereas there was so much helium left in them that, if the rocks were a billion years old all the helium should long since have leaked out and none would be left. But there was still helium left. The two internal clocks don’t agree. So which one is correct?
Dr. B claims that the rate of decay of uranium to lead is not constant, that in times past the decay rate was much faster (he cited no evidence of this or research confirming the claim). This leads to inflated estimates, he claims. Whereas the helium-leak rate, so he claims, is constant, and, moreover, agrees with the YEC thesis.
For the other side of the argument, see this:
http://www.oldearth.org/rate_index.htm
Criticisms include challenging the research methods, challenging the purity of core samples (contamination etc.), lack of diversity of core samples (they were taken from a single site), and noting that the RATE project is beholden to fund-givers to produce a pre-ordained result.
One article criticizing the RATE project result states that the helium-leak rate is temperature-dependent; we’re talking about core samples taken from two and a half miles deep in the Earth’s crust, where temperatures are high, thus materially affecting the leak-rate. For details, see:
http://www.oldearth.org/RATE_critique_he-zr.htm
The RATE project also provided no evidence against other means of dating deep-time phenomena (such as genetic drift in living matter or redshift in starlight).
Mind you, these criticisms come from Old Earth Creationists, not atheists.