scholarly journals Mississippian Stratigraphic Nomenclature Revisions in Kansas

2018 ◽  
pp. 1-5
Author(s):  
Evan K. Franseen ◽  
Robert S. Sawin ◽  
W. Lynn Watney ◽  
Ronald R. West ◽  
Anthony L. Layzell ◽  
...  
Keyword(s):  
Geological Survey ◽  
Type Section ◽  
Stratigraphic Nomenclature

This paper reviews proposed Mississippian nomenclature changes in Kansas and outlines the changes to Zeller (1968) that have been adopted by the Kansas Geological Survey. The Sedalia Dolomite is changed to the Sedalia Formation and the Northview Shale is changed to Northview Formation due to lateral lithology changes. The Short Creek Oolite Member as originally defined and described by Smith and Siebenthal (1907) at the type section in Kansas is reinstated. The Cowley Formation as originally defined and described by Lee (1940) in Kansas is reinstated. The Ste. Genevieve Limestone is placed as the basal formation of the Chesteran Stage.

The Rogers-Hotchkiss Geological Maps of Virginia and West Virginia

1995 ◽  
Vol 14 (1) ◽  
pp. 84-97 ◽  
Author(s):  
Peter Lessing
Keyword(s):  
West Virginia ◽  
Cross Sections ◽  
Public Works ◽  
Geological Survey ◽  
Annual Reports ◽  
Union Army ◽  
Geological Maps ◽  
Geological Map ◽  
Geological Work ◽  
Stratigraphic Nomenclature

During the years 1835 to 1841, the first geological survey of Virginia, and what is now West Virginia, was conducted under the leadership of William Barton Rogers. His geological work was produced in seven annual reports presented to the Board of Public Works, which were reprinted in 1884 as a single volume by his widow. However, the first geological map from Rogers' survey of Virginia was only published in 1876 by Jedediah Hotchkiss. Rogers gave his geological map to Hotchkiss in 1873 for use in Hotchkiss' book published 3 years later. During the following 10 years, this geological map was produced 13 more times, mostly by Hotchkiss, and each version is slightly different. Some changes are obvious, such as scale, base map, or cross sections, whereas other modifications are subtle, including stratigraphic units, title, or colors. Three versions are hand colored; the others are lithographs. The known versions, by date, are two in 1874, one circa 1875, five in 1880 and one circa 1880, one in 1881, one in 1882, and three in 1884. Interestingly, none of these 14 versions modified Rogers' original geology, although Rogers modified his original stratigraphic nomenclature. A fifteenth version, apparently done without Rogers' knowledge for the Union army in 1862, is the hand colored geological map by Thomas S. Ridgway.

scholarly journals Jurassic palynostratigraphy of Bornholm, Baltic Sea, Denmark

1995 ◽  
Vol 12 ◽  
pp. 137-144
Author(s):  
Eva B Koppelhus
Keyword(s):  
Light Microscopy ◽  
Baltic Sea ◽  
Transmitted Light ◽  
Geological Survey ◽  
Type Section ◽  
Transmitted Light Microscopy ◽  
Standard Techniques

Samples of the Rønne Formation have been collected from exposures at Munkerup, Sose Bugt and Galgeløkke and n.vo boreholes, Galgeløkke-1 and -2, at Galgeløkke south of Rønne (Fig. 1). The Hasle Formation was sampled at the type section south of Hasle harbour, at Korsodde and from the Levka-1 and Hasle-1 boreholes. The Baga Formation, that consists of the previously defined Levka, Sorthat and Baga beds (Gry, 1969; Gravesen et al. 1982), was sampled from Mo sections within the Hasle Klinkerfabrik clay pit, from the coastal section at Korsodde, and from four cored boreholes the Levka-1, 106, 107 and 109 at the Hasle Klinkerfabrik clay pit (Nielsen & Koppelhus 1989, 1991; Koppelhus & Nielsen 1994). The samples were processed for their palynological content using the standard techniques developed at the Geological Survey of Denmark (Poulsen et al, 1990). They were examined by transmitted light microscopy. All of the slides are stored in the collections of the Department of Stratigraphy. at the Geological Survey of Denmark.

The Decline of The Use of "Lower Silurian" and The Rise of "Ordovician" In U.S. Geologic Literature

1997 ◽  
Vol 16 (1) ◽  
pp. 4-12 ◽  
Author(s):  
Ellis Yochelson
Keyword(s):  
United States ◽  
Geological Survey ◽  
Public Discussion ◽  
Lower Silurian ◽  
Stratigraphic Nomenclature ◽  
The U.S

During the 1880s and 1890s, the term "Lower Silurian" was in common use in United States geologic literature, whereas use of "Ordovician" was exceedingly rare. The few comments regarding Ordovician which appeared were mostly based on concepts of priority and advocated usage of Lower Silurian. J. D. Dana, author of the most significant textbook of the time, consistently opposed adoption of the term. However, by the early 1900s, Ordovician was widely used in the literature and in 1903 it was adopted for use by the U.S. Geological Survey. There is no record of public discussion of the move away from Lower Silurian. C. D. Walcott, employed by the USGS throughout this interval, may have played a pivotal, but private, role in this change of stratigraphic nomenclature.

scholarly journals Precambrian Nomenclature in Kansas

2013 ◽  
pp. 1-5
Author(s):  
Robert S. Sawin ◽  
Evan K. Franseen ◽  
Greg A. Ludvigson ◽  
W. Lynn Watney ◽  
Ronald R. West
Keyword(s):  
Geological Survey ◽  
Stratigraphic Nomenclature

The informal stratigraphic term "Precambrian" is replaced by formal nomenclature--Proterozoic and Archean Eonothems/Eons--and the informal term Hadean. The Phanerozoic Eonothem/Eon, representing all rocks younger than the Proterozoic, is added. The Proterozoic is further divided into Paleoproterozoic, Mesoproterozoic, and Neoproterozoic Erathems/Eras. The name Rice Formation (Scott, 1966) is abandoned, and the use of the informal term "Rice unit" is recommended. The proposed name Rice Series (Berendsen, 1994) is not accepted. These changes are adopted by the Kansas Geological Survey (KGS) and the stratigraphic nomenclature of Zeller (1968) has been revised accordingly.

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