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Rb-Sr and U-Pb isotopic ages of granites in the central Transantarctic Mountains

✍ Scribed by Gunner, J.; Mattinson, J. M.


Book ID
121860772
Publisher
Cambridge University Press
Year
1975
Tongue
English
Weight
307 KB
Volume
112
Category
Article
ISSN
0016-7568

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Age and origin of the Nigerian mesozoic
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Sixty-four Rb-Sr and two K-At isotopic measurements from seven ring complexes in central Nigeria provide evidence for a systematic age trend along a 200 km zone ranging from 1744-5 m.y. in the north to 154-4-4 m.y. in the south. A peak of anorogenie magmatism occurred in the Jos Plateau region about