Late Devonian glacigenic and associated facies from the central Appalachian Basin, eastern United States

2009 ◽  
Vol 122 (1-2) ◽  
pp. 265-281 ◽  
Author(s):  
D. K. Brezinski ◽  
C. B. Cecil ◽  
V. W. Skema
Keyword(s):  
United States ◽  
Appalachian Basin ◽  
Late Devonian ◽  
Eastern United States

Late Devonian glacial deposits from the eastern United States signal an end of the mid-Paleozoic warm period

2008 ◽  
Vol 268 (3-4) ◽  
pp. 143-151 ◽  
Author(s):  
David K. Brezinski ◽  
C. Blaine Cecil ◽  
Viktoras W. Skema ◽  
Robert Stamm
Keyword(s):  
United States ◽  
Warm Period ◽  
Late Devonian ◽  
Eastern United States ◽  
Glacial Deposits

Protosalvinia Dawson and associated conodonts of the upper Trachytera Zone, Famennian, Upper Devonian, in the eastern United States

2009 ◽  
Vol 83 (1) ◽  
pp. 70-79 ◽  
Author(s):  
D. Jeffrey Over ◽  
Remus Lazar ◽  
Gordon C. Baird ◽  
Juergen Schieber ◽  
Frank R. Ettensohn
Keyword(s):  
United States ◽  
Appalachian Basin ◽  
Upper Devonian ◽  
Illinois Basin ◽  
Eastern United States ◽  
Southern Appalachian ◽  
Chattanooga Shale ◽  
New Albany Shale ◽  
Northern Appalachian Basin

Protosalvinia first occur in association with conodonts of the Upper trachytera Zone and below the Three Lick Bed in the Ohio Shale and the Ellicott Shale of the central and northern Appalachian Basin, as well as in the Clegg Creek Member of the New Albany Shale of the Illinois Basin. In the Chattanooga Shale of the southern Appalachian Basin, Protosalvinia are found no lower than the Upper marginifera Zone or associated with obviously reworked conodonts in the Middle expansa Zone. Regionally Protosalvinia are associated with a disconformity and may be found with conodonts of the Lower expansa Zone.

Conodont biostratigraphy of the Chattanooga Shale, Middle and Upper Devonian, southern Appalachian basin, eastern United States

2007 ◽  
Vol 81 (6) ◽  
pp. 1194-1217 ◽  
Author(s):  
D. Jeffrey Over
Keyword(s):  
United States ◽  
Appalachian Basin ◽  
Upper Devonian ◽  
Eastern United States ◽  
Conodont Biostratigraphy ◽  
Fine Grained ◽  
Southern Appalachian ◽  
Global Correlation ◽  
Chattanooga Shale ◽  
Conodont Fauna

The Chattanooga Shale of the southern Appalachian Basin contains a diverse conodont fauna of the high Givetian, Frasnian, and Famennian. The predominantly fine-grained strata were deposited in an offshore setting where depositional packages are separated by unconformities. Conodonts allow regional and global correlation of these strata, recognition of the Frasnian-Famennian boundary, and narrow biostratigraphic constraint of two Frasnian ash beds, MN Zone 8 for the Belpre Ash and upper MN Zone 13 for the Center Hill Ash. Three new Frasnian palmatolepid conodonts are described in open nomenclature, and the holotype ofPalmatolepis regularisCooper is reillustrated.

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