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Rb-Sr whole-rock age of the contact aureole of the Stillwater Igneous Complex, Montana

โœ Scribed by Paul A. Mueller; Joseph L. Wooden

Book ID
115853971
Publisher
Elsevier Science
Year
1976
Tongue
English
Weight
360 KB
Volume
29
Category
Article
ISSN
0012-821X

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Rb๎—ธSr whole rock ages of the lueshe, Kir
Rb๎—ธSr whole rock ages of the lueshe, Kirumba and Numbi igneous complexes (Kivu, Democratic Republic of Congo) and the break-up of the Rodinia supercontinent
โœ A.B. Kampunzu; J.D. Kramers; M.N. Makutu ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 673 KB

The ages of the Lueshe, Kirumba and Numbi alkaline and carbonatitic complexes have been determined at 822\_+ 120 Ma, 803 + 22 Ma and 830 +\_ 51 Ma, respectively, with initial 87Sr/86Sr ratios around 0.703. These ages are significantly older than Rb-Sr and K-Ar mineral and whole rock ages reported pr