Potassium-Argon Age from a Granite at Mount Wilbur, Queen Maud Range, Antarctica

The basement complex of the Robert Scott Glacier area, Queen Maud Range, Antarctica, consists of a complex suite of metasedimentary and metavolcanic rocks intruded by light gray biotite granite. Brown biotite from a granite at Mount Wilbur was dated by the potassium-argon method at 470 ± 14 million...

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Bibliographic Details
Published in:Science
Main Author: Minshew, Velon H.
Format: Article in Journal/Newspaper
Language:English
Published: American Association for the Advancement of Science (AAAS) 1965
Subjects:
Online Access:http://dx.doi.org/10.1126/science.150.3697.741
https://www.science.org/doi/pdf/10.1126/science.150.3697.741
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Summary:The basement complex of the Robert Scott Glacier area, Queen Maud Range, Antarctica, consists of a complex suite of metasedimentary and metavolcanic rocks intruded by light gray biotite granite. Brown biotite from a granite at Mount Wilbur was dated by the potassium-argon method at 470 ± 14 million years; this age coincides closely with many other ages from granitic rocks in the Transantarctic Mountains.