Thank you for this message. I think it answers what I was looking for. All hail the mighty
SHRIMP (Sensitive High Resolution Ion Microprobe).
Comments about other messages:
JonF, in message 3, just overwhelmed me. Thanks for the effort, but more than I was looking for.
JonF writes:
Also a Google Scholar Search turns up bunches of hits.
I think I was trying to use
scirus.com, which is heavily slanted towards searching the real technical journals (not the Google Scholar isn't). Anyway, Scirus just didn't work for me.
Dewise1, in message 7:
Dewise1 writes:
My understanding of your OP is that it's basalt in continental plates that are unsuitable for dating because they are too old, which would cause concentrations of the elements you list to be too low. ...
My college geology was in the mid to late 1970's. At the time (or the technology of the time), basalts of any age just didn't have the needed minerals and/or elements in useful concentrations.
Thanks again, for all your efforts.
Moose
Edited by Minnemooseus, : Add wikipedia SHRIMP link (even though Boof did have the same in his message.