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Revised correlation of Silurian Provincial Series of North America with global and regional chronostratigraphic units and delta 13C(carb) chemostratigraphy
- Cramer, Bradley D. (author)
- Brett, Carlton E. (author)
- Melchin, Michael J. (author)
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- Maennik, Peep (author)
- Kleffner, Mark A. (author)
- McLaughlin, Patrick I. (author)
- Loydell, David K. (author)
- Munnecke, Axel (author)
- Corradini, Carlo (author)
- Brunton, Frank R. (author)
- Saltzman, Matthew R. (author)
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- (creator_code:org_t)
- 2010-08-31
- 2011
- English.
- In: Lethaia. - : Scandinavian University Press / Universitetsforlaget AS. - 0024-1164. ; 44:2, s. 185-202
- Research review (peer-reviewed)
Abstract
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- Recent revisions to the biostratigraphic and chronostratigraphic assignment of strata from the type area of the Niagaran Provincial Series (a regional chronostratigraphic unit) have demonstrated the need to revise the chronostratigraphic correlation of the Silurian System of North America. Recently, the working group to restudy the base of the Wenlock Series has developed an extremely high-resolution global chronostratigraphy for the Telychian and Sheinwoodian stages by integrating graptolite and conodont biostratigraphy with carbonate carbon isotope (delta 13C(carb)) chemostratigraphy. This improved global chronostratigraphy has required such significant chronostratigraphic revisions to the North American succession that much of the Silurian System in North America is currently in a state of flux and needs further refinement. This report serves as an update of the progress on recalibrating the global chronostratigraphic correlation of North American Provincial Series and Stage boundaries in their type area. The revised North American classification is correlated with global series and stages as well as regional classifications used in the United Kingdom, the East Baltic, Australia, China, the Barrandian, and Altaj. Twenty-four potential stage slices, based primarily on graptolite and conodont zones and correlated to the global series and stages, are illustrated alongside a new composite delta 13C(carb) curve for the Silurian. Conodont, graptolite, isotope, New York, Ontario, series, Silurian, stage.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geologi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geology (hsv//eng)
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