U-Pb geochronology of two pre-Tertiary plutons in the Coast Mountains Batholith near Ketchikan, southeastern Alaska

George E Gehrels, W. C. McClelland, S. D. Samson, J. L. Jackson, P. J. Patchett

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

U-Pb geochronologic studies indicate that the central part of the Coast Mountains Batholith in the Ketchikan area contains plutons of Triassic and possibly mid-Paleozoic age in addition to the previously recognized early Tertiary plutons. The presence of these Triassic and possibly mid-Paleozoic plutons supports previous interpretations that pre-Tertiary rocks in this part of the batholith may belong to the Yukon-Tanana terrane. -from Authors

Original languageEnglish (US)
Pages (from-to)894-898
Number of pages5
JournalCanadian Journal of Earth Sciences
Volume28
Issue number6
StatePublished - 1991

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batholith
geochronology
pluton
mountain
coast
Triassic
Paleozoic
terrane
rock

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)

Cite this

U-Pb geochronology of two pre-Tertiary plutons in the Coast Mountains Batholith near Ketchikan, southeastern Alaska. / Gehrels, George E; McClelland, W. C.; Samson, S. D.; Jackson, J. L.; Patchett, P. J.

In: Canadian Journal of Earth Sciences, Vol. 28, No. 6, 1991, p. 894-898.

Research output: Contribution to journalArticle

Gehrels, George E ; McClelland, W. C. ; Samson, S. D. ; Jackson, J. L. ; Patchett, P. J. / U-Pb geochronology of two pre-Tertiary plutons in the Coast Mountains Batholith near Ketchikan, southeastern Alaska. In: Canadian Journal of Earth Sciences. 1991 ; Vol. 28, No. 6. pp. 894-898.
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