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Some Pb and Sr isotopic measurements on eclogites from the Roberts Victor Mine, South Africa.Five nodules of eclogite, one nodule of garnet peridotite, and one sample of kimberlite from the Roberts Victor Mine in the Orange Free State were analyzed for concentrations of U, Th, Pb, Rb, and Sr, and also isotopic compositions of Pb and Sr. Results are presented and analyzed. They indicate that the Roberts Victor eclogites have been contaminated by lead from the host rock of kimberlite. This finding suggests that stepwise extraction of lead may be a means of obtaining the isotopic composition of the primary lead in kimberlitic eclogites.
Document ID
19720032885
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Manton, W. I.
(Texas, University Dallas, Tex., United States)
Tatsumoto, M.
(U. S. Geological Survey Denver, Colo., United States)
Date Acquired
August 6, 2013
Publication Date
January 1, 1971
Publication Information
Publication: Earth and Planetary Science Letters
Volume: 10
Subject Category
Geophysics
Accession Number
72A16551
Funding Number(s)
CONTRACT_GRANT: NSF GA-4500
CONTRACT_GRANT: NGL-44-004-001
Distribution Limits
Public
Copyright
Other

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