Silurian high-resolution stratigraphy on the Cincinnati Arch; progress on recalibrating the layer-cake

Patrick I McLaughlin; Bradley D Cramer; Carlton E Brett; Mark A Kleffner

doi:10.1130/2008.fld012(08)

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Journal article

Silurian high-resolution stratigraphy on the Cincinnati Arch; progress on recalibrating the layer-cake

Patrick I McLaughlin, Bradley D Cramer, Carlton E Brett and Mark A Kleffner

Field Guide (Geological Society of America), Vol.12, pp.119-180

2008

DOI: 10.1130/2008.fld012(08)

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Abstract

The Silurian rocks of the Cincinnati Arch in Ohio, Kentucky, and Indiana have been studied for nearly two centuries. Compilation of data from these studies, combined with detailed analysis of nearly 20 continuous drill cores and remeasuring and resampling of more than 60 major outcrops, is the basis for a high-resolution sequence stratigraphic framework. Seven depositional sequences are assigned on the basis of through-going unconformities, which mirror those already recognized in the early Llandovery to early Ludlow of the northern Appalachian Basin. Revision of the conodont biostratigraphy for the Cincinnati Arch has produced results that both agree and disagree with the other lines of data implemented in the sequence stratigraphic depositional model. Biostratigraphic correlations between southern Ohio and the Niagara Fails area are largely in agreement with correlations based on other lines of data, as are correlations between west-central and western Ohio, southeastern Indiana, and northern Kentucky. However, correlations between southern and west-central Ohio show major areas of disagreement. Preliminary whole rock carbonate carbon isotope analyses in western-central Ohio show patterns roughly comparable to those documented in the Niagara region, Gotland, and elsewhere. Chemostratigraphic data that might resolve inconsistencies in the correlations between southern and west-central Ohio were not yet available at the time of publication.

assemblages

biostratigraphy

biozones

C-13/C-12

carbon

chemostratigraphy

Cincinnati Arch

Conodonta

correlation

facies

field trips

high-resolution methods

Indiana

Isotope geochemistry

isotope ratios

isotopes

Kentucky

lithostratigraphy

microfossils

North America

Ohio

paleo-oceanography

paleogeography

Paleozoic

road log

sequence stratigraphy

Silurian

stable isotopes

stratigraphic units

Stratigraphy

United States

Details

Title: Subtitle: Silurian high-resolution stratigraphy on the Cincinnati Arch; progress on recalibrating the layer-cake
Creators: Patrick I McLaughlin - Wisconsin Geological and Natural History Survey Madison, WI USA United States
Bradley D Cramer
Carlton E Brett
Mark A Kleffner
Contributors: Anton H Maria (Editor) - University of Southern Indiana
Ronald C Counts (Editor)
Resource Type: Journal article
Publication Details: Field Guide (Geological Society of America), Vol.12, pp.119-180
Publisher: Geological Society of America
DOI: 10.1130/2008.fld012(08)
ISSN: 2333-0937
eISSN: 2333-0945
Alternative title: From the Cincinnati Arch to the Illinois Basin; geological field excursions along the Ohio River valley
Language: English
Date published: 2008
Academic Unit: Office Of The Provost; International Programs; Earth and Environmental Sciences
Record Identifier: 9984229167402771

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