ericmurphy
Posts: 2460
Joined: Oct. 2005
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| Quote (afdave @ Sep. 23 2006,06:38) | | Quote | | As does Snelling's data, except the slope of the line is zero, and the variation in 87Sr/86Sr values is negligible, and the variation in 87Rb/87Sr values is significant ... exactly what you said was impossible! |
Could you kindly show me where I said that? |
Sure:
| Quote | JonF says that the samples above are widely spaced enough that they would be inhomogeneous WRT Rb content ...
Oh really? OK, fine. Then guess what ... they are inhomogeneous WRT to intial 87Sr/86Sr content also. You cannot have it both ways. The Whole Rock Isochron method assumes a homogeneous daughter ratio. It is either homogeneous or it is not. If it is, then Rb is homogeneous also. If it is not, the the WRI diagram is rendered useless. |
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2006 MVD award for most dogged defense of scientific sanity
"Atheism is a religion the same way NOT collecting stamps is a hobby." —Scott Adams
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