1995
DOI: 10.4138/2098
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Silurian tectonic history of Penobscot Bay region, Maine

Abstract: Early Paleozoic amalgamation of composite terranes was contemporaneous at widely separated regions that were later accreted to either ancestral North America or to Gondwana as those two continents approached each other. Terranes closer to Laurentia amalgamated in the Late Cambrian to Middle Ordovician Penobscottian orogeny and were accreted to ancestral North America in the Middle and to Late Orodovician Taconic orogeny. Peri-Gondwanan terranes formed from Late Cambrian and Early Ordovician rocks were amalgama… Show more

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Cited by 24 publications
(33 citation statements)
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References 7 publications
(10 reference statements)
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“…2. Reports on various aspects of the geology and geophysics of the block were given by Stewart (1974), Stewart and Lux (1988), Stewart et al (1993Stewart et al ( , 1995aStewart et al ( , 1995bStewart et al ( , 1998. Seismic reflection data (Stewart 1998, Fig.…”
Section: Introductionmentioning
confidence: 99%
“…2. Reports on various aspects of the geology and geophysics of the block were given by Stewart (1974), Stewart and Lux (1988), Stewart et al (1993Stewart et al ( , 1995aStewart et al ( , 1995bStewart et al ( , 1998. Seismic reflection data (Stewart 1998, Fig.…”
Section: Introductionmentioning
confidence: 99%
“…Avalonia effectively became part of Laurentia with the destruction of this last vestige of oceanic crust in the latest Silurian to earliest Devonian. However, considerable transcurrent displacement continued to be focused along this suture well into the Carboniferous (Leger and Williams 1988;Doig et al 1990;Eby and Currie 1993;Nance and Dallmeyer 1993;Park et al 1994Park et al , 2008Stewart et al 1995;Schreckengost and Nance 1996;Currie and McNicoll 1999).…”
Section: Acadian Orogenic Cyclementioning
confidence: 99%
“…Although basement rocks are concealed beneath Mascarene cover in the Passamaquoddy Bay area, the apparent westward continuation of Panel C into the Penobscot Bay area of Maine is overlain only in part by Silurian volcanic rocks. These older volcanic sequences exposed along the Maine coast are referred to as the Ellsworth Schist and Castine Volcanics (Stewart and Wones 1974;Stewart et al 1995;Schultz et al 2008). A felsic tuff of the Ellsworth Schist and a felsic dome in the Castine Volcanics yielded Middle Cambrian U-Pb zircon dates of 509 ± 1 Ma and 504 ± 3 Ma, respectively (Ruitenberg et al 1993;Schultz et al 2008).…”
Section: Panel Cmentioning
confidence: 99%
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