| Crystal Mountain Sandstone | |
|---|---|
| Stratigraphic range: Ordovician | |
| Type | Formation |
| Unit of | none |
| Sub-units | none |
| Underlies | Mazarn Shale |
| Overlies | Collier Shale |
| Thickness | 500 to 800 feet |
| Lithology | |
| Primary | Sandstone |
| Location | |
| Region | Arkansas, Oklahoma |
| Country | United States |
| Type section | |
| Named for | Crystal Mountains, Montgomery County, Arkansas |
| Named by | Albert Homer Purdue |
The Crystal Mountain Sandstone is an Ordovician geologic formation in the Ouachita Mountains of Arkansas and Oklahoma. This interval was first described in 1892, but remained unnamed until 1909 as part of a study on the Ouachita Mountains of Arkansas by Albert Homer Purdue.
See also
References
- McFarland, John David (2004) . "Stratigraphic summary of Arkansas" (PDF). Arkansas Geological Commission Information Circular. 36: 18. Archived from the original (PDF) on 2016-12-21. Retrieved 2018-01-05.
- ^ Purdue, A.H. (1909). Slates of Arkansas. Geological Survey of Arkansas. pp. 30, 32.
- ^ Purdue, A.H. (1909). "Structure and stratigraphy of the Ouachita Ordovician area (abstract)" (PDF). Geological Society of America Bulletin. 19: 557. doi:10.1130/GSAB-19-513.
- Griswold, I.S. (1892). "Whetstones and the novaculites". Annual Report of the Geological Survey of Arkansas for 1890. 3.
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