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This super-anomaly was explained away by claiming some strange metamorphic effect on the Sr.
(Woodmorappe, 1979, p.122) Sounds pretty grim, huh?
The "isochrons" lines were drawn by Faure and Powell  as "reference isochrons" solely for the purpose of showing the magnitude of the scatter in the data. The scatter of the data in Figure 6 shows clearly that the sample has been an open system to age can be calculated from these data.
This conclusion was clearly stated by both Wasserburg and others  and by Faure and Powell .
The interpretation that the data represent a 34-billion-year isochron is solely Woodmorappe's  and is patently wrong.
(Dalrymple, 1984, pp.78-79) Whatever the reasons may be for the scatter, the fact remains that these data were clearly a "discard" case.
Upon being presented with claims that radiometric dating is totally erroneous, a question naturally arises: If radiometric geochronology is half as bad as Woodmorappe's list suggests, then how in the world did geologists ever arrive at a tight consensus for the official dates?
Look at the various radiometric tables in use over the last 20 years or so and you will find, at least for the fossil-bearing strata, a remarkably tight agreement. Did the geochronologists throw darts to determine the accepted dates?
Some of the dates involved minerals that even Woodmorappe admits are unreliable. If the radiometric method is to be indicted, it must be indicted by dates which were counted as good but shown, by other means, to be bad. Properly interpreted, a number of gross "errors" listed in Woodmorappe's table simply vanish!He plots Woodmorappe's collection of anomalous radiometric results and notices something remarkable.Eat one of those and your tummy will curl right up!A spectacular example showcased by Woodmorappe, though not actually listed in his table, deals with an example from California.The Pharump diabase from the Precambrian of California yielded an Rb-Sr isochron of no less than 34 b.y., which is not only 7 times the age of the earth but also greater than some uniformitarian estimates of the age of the universe.