Spatial and temporal variability in organic carbon burial during global positive carbon isotope excursions; new insight from high resolution delta (super 13) C (sub carb) stratigraphy from the type area of the Niagaran (Silurian) Provincial Series

Bradley D Cramer; Matthew R Saltzman; Mark A Kleffner

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Spatial and temporal variability in organic carbon burial during global positive carbon isotope excursions; new insight from high resolution delta (super 13) C (sub carb) stratigraphy from the type area of the Niagaran (Silurian) Provincial Series

Journal article

Peer reviewed

Spatial and temporal variability in organic carbon burial during global positive carbon isotope excursions; new insight from high resolution delta (super 13) C (sub carb) stratigraphy from the type area of the Niagaran (Silurian) Provincial Series

Bradley D Cramer, Matthew R Saltzman and Mark A Kleffner

Stratigraphy, Vol.2(4), pp.327-340

04/2006

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Abstract

Ninety-four carbonate samples were analyzed for carbon isotope (delta (super 13) C (sub carb) ) stratigraphy from the Niagara River Power Project S-1 core, Lewiston, New York. Samples were taken from Clinton and Lockport Group rocks in the type area of the Niagaran Provincial Series in order to constrain more precisely the age and correlation of middle Silurian strata of the Appalachian Basin. The well known, Ireviken (Sheinwoodian), positive carbon isotope excursion is present in the sampled section, and indicates that the Irondequoit, Rochester, Decew, Gasport, and Goat Island Formations are all Sheinwoodian in age. This fact has implications for both stratigraphic correlation of Silurian strata throughout North America as well as the interpretation of the stratigraphic record with respect to positive carbon isotope excursions. Here, we discuss the Appalachian Basin sequence in the context of an oceanographic model that links changes in global oceanography with alternations between cold and warm climate states.

Appalachian Basin

biostratigraphy

C-13/C-12

carbon

carbonate rocks

chemostratigraphy

Clinton Group

correlation

Decew Dolomite

epicontinental seas

Gasport Limestone

Goat Island Member

Ireviken Excursion

Irondequoit Limestone

Isotope geochemistry

isotope ratios

isotopes

Lewiston New York

Lockport Formation

Middle Silurian

New York

Niagaran

North America

oceanography

organic carbon

paleo-oceanography

paleoclimatology

Paleozoic

Rochester Formation

sedimentary rocks

Silurian

stable isotopes

Stratigraphy

United States

Details

Title: Subtitle: Spatial and temporal variability in organic carbon burial during global positive carbon isotope excursions; new insight from high resolution delta (super 13) C (sub carb) stratigraphy from the type area of the Niagaran (Silurian) Provincial Series
Creators: Bradley D Cramer - Ohio State University Columbus, OH USA United States
Matthew R Saltzman
Mark A Kleffner
Resource Type: Journal article
Publication Details: Stratigraphy, Vol.2(4), pp.327-340
Publisher: Micropaleontology Press
ISSN: 1547-139X
eISSN: 2331-656X
Language: English
Date published: 04/2006
Academic Unit: Office Of The Provost; International Programs; Earth and Environmental Sciences
Record Identifier: 9984240914002771

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