A Paleozoic Zircon Age of the Westcoast Crystalline Complex of Vancouver Island, British Columbia
1974 ◽
Vol 11
(12)
◽
pp. 1717-1722
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Keyword(s):
Zircons from the Westcoast Crystalline Complex near Tofino, Vancouver Island, have yielded the following ages: 206Pb/238U = 265 ± 7 m.y.; 207Pb/235U = 263 ± 7 m.y.; and 206Pb/207Pb = 244 ± 20 m.y. A K–Ar date of an amphibolized dike from the same outcrop yielded 192 ± 9 m.y. This is the first supporting isotopic evidence that the 'basement' complex is derived from late Paleozoic Sicker volcanic rocks and was ultimately migmatized during the major Jurassic plutonic event of Vancouver Island.
2003 ◽
Vol 40
(7)
◽
pp. 907-924
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Keyword(s):
Burial metamorphism of the Karmutsen volcanic rocks, northeastern Vancouver Island, British Columbia
1976 ◽
Vol 276
(9)
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pp. 1096-1119
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Keyword(s):
1982 ◽
Vol 93
(7)
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pp. 585
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2005 ◽
Vol 24
(3)
◽
pp. 478-494
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2004 ◽
Vol 101
(49)
◽
pp. 17258-17263
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