Back in my geology school days in the mid to late 70's, my understanding was that basaltic rocks were unsuitable for radiometric dating. This is because concentrations of elements such as Uranium (U), Rubidium (Rb), and Potassium (K) are too low in such mafic rocks.
But I now see members referring to radiometric datings of oceanic crust rocks that I must presume to be basaltic. I have done searches to try to determine how these datings are done, but have never been able to find anything.
So, the question is, how are these basaltic rock datings done?
Professor, geology, Whatsamatta U Evolution - Changes in the environment, caused by the interactions of the components of the environment.
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JonF, in message 3, just overwhelmed me. Thanks for the effort, but more than I was looking for.
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:
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.
Edited by Minnemooseus, : Add wikipedia SHRIMP link (even though Boof did have the same in his message.