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Science 5 November 1965:
Vol. 150. no. 3697, pp. 741 - 743
DOI: 10.1126/science.150.3697.741
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Potassium-Argon Age from a Granite at Mount Wilbur, Queen Maud Range, Antarctica

Velon H. Minshew 1

1 Institute of Polar Studies, Ohio State University, Columbus

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.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)