Cason Shale
| Cason Shale Stratigraphic range: Ordovician-Silurian | |
|---|---|
| Type | Formation |
| Unit of | none |
| Underlies | Brassfield Limestone |
| Overlies | Fernvale Limestone |
| Thickness | up to appx. 23 feet[1] |
| Lithology | |
| Primary | Shale |
| Location | |
| Region | Arkansas |
| Country | United States |
| Type section | |
| Named for | Cason tract and mine, near Batesville, Independence County, Arkansas |
| Named by | Henry Shaler Williams[2] |
The Cason Shale is a Late Ordovician to Middle Silurian geologic formation in the Ozark Plateaus of Arkansas.[1] The name was introduced in 1894 by Henry Shaler Williams in his study of Arkansas.[2] Williams designated a type locality at what was known as the Cason tract and mine, near Batesville, Independence County, Arkansas, however, he did not assign a stratotype. As of 2017, a reference section has not been designated for this unit.
See also
References
- 1 2 McFarland, John David (2004) [1998]. "Stratigraphic summary of Arkansas" (PDF). Arkansas Geological Commission Information Circular. 36: 7.
- 1 2 Williams, Henry S. (1894). "On the age of the manganese beds of the Batesville region of Arkansas". The American Journal of Science, 3rd series. 48: 325–331.
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