1991
DOI: 10.2475/ajs.291.8.760
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Silurian cover, late Precambrian-Early Ordovician basement, and the chronology of Silurian orogenesis in the Hermitage Flexure (Newfoundland Appalachians)

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Cited by 52 publications
(23 citation statements)
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“…The presence of basalts and basaltic andesites in the Annidale Group with both depleted and non-depleted Nb signatures is characteristic of mafic volcanic rocks erupted in an arc-backarc setting Johnson et al 2009). The age range of volcanic rocks in the Annidale Group (493 ± 2 Ma to 481 ± 2 Ma) is comparable to that of the younger Penobscot volcanic arc sequences (497 ± 2 Ma to 487 ± 3 Ma) in the Victoria Lake Supergroup of central Newfoundland (Dunning et al 1991;Rogers et al 2006;Zagorevski et al 2007Zagorevski et al , 2010.…”
Section: Annidale Terranementioning
confidence: 63%
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“…The presence of basalts and basaltic andesites in the Annidale Group with both depleted and non-depleted Nb signatures is characteristic of mafic volcanic rocks erupted in an arc-backarc setting Johnson et al 2009). The age range of volcanic rocks in the Annidale Group (493 ± 2 Ma to 481 ± 2 Ma) is comparable to that of the younger Penobscot volcanic arc sequences (497 ± 2 Ma to 487 ± 3 Ma) in the Victoria Lake Supergroup of central Newfoundland (Dunning et al 1991;Rogers et al 2006;Zagorevski et al 2007Zagorevski et al , 2010.…”
Section: Annidale Terranementioning
confidence: 63%
“…The total age range of the Ellsworth volcanic rocks in New Brunswick and Maine (514 ± 2 Ma to 504 ± 3 Ma) is comparable with that of the older Penobscot volcanic arc sequences (513 ± 2 Ma to 506 ± 3 Ma) in the Victoria Lake Supergroup of central Newfoundland (Dunning et al 1991;Rogers et al 2006;Zagorevski et al 2007Zagorevski et al , 2010. The rocks of both the Ellsworth and Castine volcanic sequences in Maine are composed of bimodal basalt-rhyolite assemblages that formed in an extensional marine tectonic setting (Schultz et al 2008).…”
Section: Panel Cmentioning
confidence: 68%
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“…2), Silurian volcanic and sedimentary rocks of the La Poile Group lie unconformably on Late Neoproterozoic -Late Cambrian rocks (e.g. Dunning and O'Brien 1989;Dunning et al 1990b;O'Brien et al 1991;Valverde-Vaquero et al 2006;Lin et al 2007 Hibbard et al (2007) termed this area the Cinq-Cerf block, a term also adopted here (Fig. 2).…”
Section: Geological Background Pre-carboniferous Rocksmentioning
confidence: 99%
“…Some workers in Newfoundland have interpreted the Cinq-Cerf block to be part of Avalonia, rather than Ganderia, based on the Neoproterozoic ages (e.g. O'Brien et al 1991;Valverde-Vaquero et al 2006). Most of the rest of the Hermitage Flexure consists of Silurian and Devonian plutonic rocks, except in the Grey River area (Fig.…”
Section: Geological Background Pre-carboniferous Rocksmentioning
confidence: 99%