 | It has been suggested that New Providence Shale be merged into this article. (Discuss) Proposed since September 2024. |
| It has been suggested that Spickert Knob Formation be merged into this article. (Discuss) Proposed since September 2024. |
| Borden Formation | |
|---|---|
| Stratigraphic range: Mississippian | |
 Turbidites of Farmers Member of Borden Formation at mile marker 135, Interstate 64, Kentucky | |
| Type | Sedimentary |
| Sub-units | Kentucky: |
| Thickness | Kentucky: 0–200 m (0–656 ft)[5] |
| Lithology | |
| Primary | Shale, siltstone, sandstone |
| Other | Limestone |
| Location | |
| Region | Kentucky, Indiana, Illinois, Ohio, West Virginia, Tennessee |
| Country |  United States |
| Extent | Cincinnati Arch, Appalachian Basin, Illinois Basin |
| Type section | |
| Named for | Borden, Clark County, Indiana |
| Named by | Cummings |
| Year defined | 1922[6] |
Wikimedia Commons has media related to Borden Formation.
The Mississippian Borden Formation is a mapped bedrock unit in Kentucky, Indiana, Illinois, Ohio, West Virginia,[7] and Tennessee. It has many members, which has led some geologists to consider it a group (for example in Indiana[8]) rather than a formation (for example in Kentucky[1][4]).
- ^ a b Kepferle, R.C., 1971, Members of the Borden Formation (Mississippian) in north-central Kentucky, IN Contributions to stratigraphy, 1971: U.S. Geological Survey Bulletin, 1354-B, p. B1–B18.
- ^ Peck, J.H., 1969, Geologic map of the Flemingsburg quadrangle, Fleming and Mason Counties, Kentucky: U.S. Geological Survey Geologic Quadrangle Map, GQ-837, 1 sheet, scale 1:24,000
- ^ Weir, G.W., 1976, Geologic map of the Means quadrangle, east-central Kentucky: U.S. Geological Survey Geologic Quadrangle Map, GQ-1324, 1 sheet, scale 1:24,000
- ^ a b Weir, G.W., Gualtieri, J.L., and Schlanger, S.O., 1966, Borden Formation (Mississippian) in south- and southeast-central Kentucky, IN Contributions to stratigraphy, 1965: U.S. Geological Survey Bulletin, 1224-F, p. F1–F38. [1]
- ^ Chesnut, D.R., Jr., 1992, Stratigraphic and structural framework of the Carboniferous rocks of the central Appalachian basin in Kentucky: Kentucky Geological Survey Bulletin, 11th series, no. 3, 42 p.
- ^ Cumings, E.R., 1922, Nomenclature and description of the geological formations of Indiana, IN Logan, W.N., and others, Handbook of Indiana Geology: Indiana Division of Geology Publication, no. 21, p. 403–570
- ^ Matchen, D.L., and Kammer, T.W., 1994, Sequence stratigraphy of the Lower Mississippian Price and Borden Formations in southern West Virginia and eastern Kentucky: Southeastern Geology, v. 34, no. 1, p. 25–41.
- ^ Shaver, R.H., Burger, A.M., Gates, G.R., Gray, H.H., and others, 1970, Compendium of rock-unit stratigraphy in Indiana: Indiana Geological Survey Bulletin, no. 43, 229 p.