Early Devonian paleomagnetic data from the Lower Devonian Karheen Formation suggest Laurentia-Baltica connection for the Alexander Terrane

D. R. Bazard, R. F. Butler, George E Gehrels, C. M. Soja

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Abstract

Paleomagnetic data from 29 sites within the Lower Devonian Karheen Formation pass fold and reversal tests, and define two polarity zones that are correlative between two separate stratigraphic sections. Ths magnetization is proposed to be Early Devonian and thus a paleopole for the Alexander terrane is proposed that places the terrane at about 14° (north or south). Due to uncertainties of the Early Devonian parts of the North American and Gondwana apparent polar wander paths, several interpretations of the Early Devonian position of the Alexander terrane relative to either North America (Laurentia) or Gondwana are permissible. A combined data set of palaeomagnetic, detrital zircon, and palaeontological observations is used to narrow the paleogeographic options. -from Authors

Original languageEnglish (US)
Pages (from-to)707-710
Number of pages4
JournalGeology
Volume23
Issue number8
DOIs
StatePublished - 1995
Externally publishedYes

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Baltica
Laurentia
terrane
Gondwana
apparent polar wander path
magnetization
zircon
fold

ASJC Scopus subject areas

  • Geology

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Early Devonian paleomagnetic data from the Lower Devonian Karheen Formation suggest Laurentia-Baltica connection for the Alexander Terrane. / Bazard, D. R.; Butler, R. F.; Gehrels, George E; Soja, C. M.

In: Geology, Vol. 23, No. 8, 1995, p. 707-710.

Research output: Contribution to journalArticle

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