New Albany Shale
| New Albany Shale | ||
|---|---|---|
Approximate paleocoordinates 27°00′S 33°54′W / 27.0°S 33.9°W | | |
| Region | Illinois, Indiana, and Kentucky | |
| Country |  United States | |
| Extent | Illinois Basin | |
| Type section | ||
| Named for | New Albany, Indiana | |
  New Albany Shale (the United States)  New Albany Shale (Indiana) | ||
The New Albany Shale is an organic-rich geologic formation of
Mississippian age in the Illinois Basin of the United States
. It is a major source of hydrocarbons.
Stratigraphy
The New Albany formation consists of brown, black, and green
Mississippian age in North America. It is correlative with the Antrim Shale of the Michigan Basin, the Ohio Shale of Ohio and eastern Kentucky, and the Chattanooga Shale of Tennessee
and central Kentucky.
The formation is composed of six members. These members in ascending
interbedded with brownish-black shale. The Clegg Creek is a brownish black pyritic shale that is rich in organic matter. The Ellsworth is composed of a lower part of interbedded brownish-black shale and an upper part of greenish-gray shale.[3]
Natural resources
Natural gas is produced from wells completed in the New Albany Shale in the southern part of the basin in Indiana and western Kentucky. As of 2001, technically recoverable shale gas in the New Albany was estimated to be between 1.9 and 19.2 trillion cubic feet.[4] More recently reserves have been estimated as high as 160 trillion cubic feet.[5]
The New Albany Shale is also a major deposit of oil shale. The Eastern Devonian shale has been estimated to contain 189,000 106 bbls of oil.[6]
The formation is also thought to be the
orogenies occurring to the east. These orogenies caused periods of uplift and subsidence that influenced movement of the hydrocarbons in the Illinois Basin.[8]
See also
References
- ^ East, J.A., Swezey, C.S., Repetski, J.E., and Hayba, D.O., 2012, Thermal maturity map of Devonian shale in the Illinois, Michigan, and Appalachian Basins of North America: U.S. Geological Survey Scientific Investigations Map SIM-3214, 1 sheet. http://pubs.er.usgs.gov/publication/sim3214
- ^ Frank R. Ettensohn and Lance S. Barron, 1981, Depositional model for the Devonian-Mississippian black-shale sequence of North America: a tectono-climatic approach, US Dept. of Energy, DOE/METC/12040-2, PDF file.
- ^ Indiana Geologic Survey, 1997, "New Albany Shale"
- ^ Kathy Shirley, "Shale gas exciting again", AAPG Explorer, March 2001.
- ^ "The New Albany Shale. Maps and Info.", Energy Industry Photos.
- ^ Dyni, J.R., 2006, Geology and resources of some world oil-shale deposits: U.S. Geological Survey Scientific Investigations Report 2005-5294,42 p.
- ^ D.L. Stevenson and D.R. Dickerson, 1969, Organic geochemistry of the New Albany Shale in Illinois, Illinois State Geological Survey, Illinois Petroleum 90, PDF file.
- ^ Kolata, D.R., 1990, Interior cratonic basins: AAPG, v. 51, p. 1-24.
Further reading
- D.L. Stevenson, L.L. Whiting, and R.M. Cluff, 1981, Geologic structure of the base of the New Albany Shale Group in Illinois, Illinois State Geological Survey, Illinois Petroleum 121, PDF file.