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The Conasauga Shale Field is a Cambrian Period part of the Appalachian thrust and fault region of Alabama, Georgia, and Tennessee. The subterranean formation consists of shales and carbonates over 15,000 feet (4,600 m) thick in certain areas. Several preliminary drillings found it could be one of the larger finds of natural gas in U.S. history. == Geography == The Conasauga shale overlies the Rome Formation, and in turn is overlain by the Knox Formation. The Conasauga Shale is present as far south as Talladega County, Alabama, and extends north to Calhoun, Cleburne, St. Clair, Etowah, Cherokee, and DeKalb Counties, and into Northwest Georgia. The Conasauga has one of the thickest shale sections in the world. Total organic content of the shale ranges from 0.5% to 1.5%. The Schlumberger Montage Shale log, filed with the Alabama Oil and Gas Board, calculates gas in place as 330.2 billion feet3 per square mile of gas (3.57 billion m3 per km2) in place for every thickness of shale. This area has a unique subsidence and thrust zone under it that geologist William Thomas has classified as a "mushwad".〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Conasauga shale」の詳細全文を読む スポンサード リンク
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