Hexagonaria sp. (fossil coral) with petroleum (Dundee Limestone, Middle Devonian; quarry northwest of Paulding, Ohio, USA) 9 : 無料・フリー素材/写真
Hexagonaria sp. (fossil coral) with petroleum (Dundee Limestone, Middle Devonian; quarry northwest of Paulding, Ohio, USA) 9 / James St. John
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
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| 説明 | Petroleum in a Hexagonaria fossil coral in the Devonian of Ohio, USA.Corals are essentially sea anemones (polyps) that make a skeleton, which is usually mineralized. Most corals are colonial, but some are solitary. This particular fossil is Hexagonaria, a colonial rugose coral having many hexagonally-shaped corallites, as seen in plan view - this is a cross-section view.The black areas are petroleum. Hydrocarbons have migrated into fractures and other porous areas of the coral. This specimen is in a quarry in northwestern Ohio, which had a significant petroleum system that was heavily exploited in the late 1800s. Ohio used to be the # 1 petroleum exporter in the world!Classification: Animalia, Cnidaria, Anthozoa, Rugosa, PhillipsastraeidaeStratigraphy: Dundee Limestone, Middle DevonianLocality: quarry northwest of the town of Paulding, northern Paulding County, northwestern Ohio, USA (41° 10' 52.55" North latitude, 84° 37' 19.32" West longitude)-----------------------------------See info. at:en.wikipedia.org/wiki/Rugosaanden.wikipedia.org/wiki/Hexagonaria |
| 撮影日 | 2012-09-13 05:35:27 |
| 撮影者 | James St. John |
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