Facies and structural contrasts across Bonne Bay cross-strike discontinuity, western Newfoundland

P. A. Cawood, J. W. Botsford

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Abstract

The Bonne Bay cross-strike discontinuity of western Newfoundland corresponds with major along-strike changes in depositional facies and structural styles of rock units overlying Grenville basement. Facies associations in time-equivalent Lower Ordovician rock units of the Humber Arm Allochthon change abruptly in character at Bonne Bay. The Bonne Bay cross-strike discontinuity is inferred to represent a transfer fault formed during continental rifting at the inception of the Appalachian cycle that was reactivated during the subsequent history of the orogen. -from Authors

Original languageEnglish
Pages (from-to)737-759
Number of pages23
JournalAmerican Journal of Science
Volume291
Issue number8
DOIs
Publication statusPublished - 1 Jan 1991
Externally publishedYes

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