Lafferty Limestone
The Lafferty Limestone is a Middle to Late Silurian geologic formation in the Ozark Plateaus of Arkansas.[1] The name was introduced in 1921 by Hugh Dinsmore Miser in his study of Arkansas, replacing part of the upper St. Clair Limestone.[2] Miser designated a type locality at Tate Spring, located 1.25 miles north of the site of the old Penters Bluff railroad station in Izard County, Arkansas, however, he did not assign a stratotype. As of 2017, a reference section has not been designated for this unit.
| Lafferty Limestone Stratigraphic range: Silurian | |
|---|---|
| Type | Formation |
| Unit of | none |
| Underlies | Penters Chert |
| Overlies | St. Clair Limestone |
| Thickness | up to 97.5 feet[1] |
| Lithology | |
| Primary | Limestone |
| Location | |
| Region | Arkansas |
| Country | United States |
| Type section | |
| Named for | West Lafferty Creek, Izard County, Arkansas |
| Named by | Hugh Dinsmore Miser[2] |
Paleofauna
References
- McFarland, John David (2004) [1998]. "Stratigraphic summary of Arkansas" (PDF). Arkansas Geological Commission Information Circular. 36: 8. Archived from the original (PDF) on 2016-12-21. Retrieved 2018-01-11.
- Miser, Hugh D. (1921). "Preliminary report on the deposits of manganese ore in the Batesville district, Arkansas" (PDF). U.S. Geological Survey Bulletin. 715-G: 93–214.
- Craig, William (1968). The stratigraphy and conodont paleontology of Ordovician and Silurian strata, Batesville district, Independence and Izard counties, Arkansas (PhD). The University of Texas.
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