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

See allHide authors and affiliations

Science  05 Nov 1965:
Vol. 150, Issue 3697, pp. 741-743
DOI: 10.1126/science.150.3697.741


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.