Wells Creek crater

Wells Creek crater
Central Wells Creek crater in 1953
Impact crater/structure
ConfidenceConfirmed
Diameter12 km (7.5 mi)
Depth(200 Ma: ~2,640 feet) (Today: ~550 feet)
Age200±100 Ma
Mesozoic
ExposedYes
DrilledYes
Location
LocationCumberland City, Tennessee
Coordinates36°22′40″N 87°39′30″W / 36.37778°N 87.65833°W / 36.37778; -87.65833
Country United States
StateTennessee
ProvinceHouston & Stewart Counties
Wells Creek crater
Location of the crater in Tennessee
Wells Creek crater
Wells Creek crater (Tennessee)
AccessPrivate

Wells Creek is an impact crater located near Cumberland City, Tennessee. It is 12 kilometers (7.5 mi) in diameter and the age is estimated to be 200±100 Ma (million years old), placing it in the Jurassic or a neighboring period. The crater is exposed to the surface. The center of the crater contains some of the finest shatter cones in the world. Many have been collected and are on display around the world.[1]

The crater contains a central uplift where Cambro-Ordovician rocks of the Wells Creek Dolomite and Knox Group are exposed. These rocks are surrounded by concentric exposures of Ordovician, Silurian, and Devonian rocks. Beyond the uplift are Mississippian rocks of the Chattanooga Shale, Fort Payne Formation, Warsaw Limestone, and St. Louis Limestone. Radial faults are abundant in the central uplift area. Sets of concentric faults surround the central uplift and three rings of them bound the outer structure.[2]

Shatter cones developed in fine grained dolomite from the Wells Creek crater

References

  1. ^ "Wells Creek". Earth Impact Database. Retrieved January 13, 2021.
  2. ^ Miller, R.A., Hardeman, W.D., Fullerton, D.S., Sykes, C.R., and Garman, R.K., 1966. Geologic Map of Tennessee (West Central Sheet), Tennessee Division of Geology. Scale: 1:250,000.