Rb/Sr isotopic ratios in selected lower crust-upper mantle nodules from Colorado-Wyoming kimberlites
By: by Craig B. Smith, M.E. McCallum, and C.E. Hedge ; United States Department of the Interior, Geological Survey.
Contributors: McCallum, M. E. 1934-; Hedge, Carl E.; Geological Survey (U.S.)
Series: Open-file report -- 82-178.; Open-file report (Geological Survey (U.S.)) -- 82-178.
Publisher: The Survey
Published: 1982
Place of publication: [Reston, Va.?]
Language: eng
Format: Microform
Subjects: Kimberlite -- Colorado.; Kimberlite -- Wyoming.
Notes: Microfiche. [Denver, Colo. : U.S. Geological Survey, 1982?]. 1 microfiche ; 11 x 15 cm.

Bibliography: p. 20-21.