Petroliferous limestone (Wabash Formation, Silurian; Monon Quarry, Indiana, USA) 1 : 無料・フリー素材/写真
Petroliferous limestone (Wabash Formation, Silurian; Monon Quarry, Indiana, USA) 1 / 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 | Petroliferous limestone from the Silurian of Indiana, USA. (public display, Geology Department, Wittenberg University, Springfield, Ohio, USA)The gray-colored portions of this specimen are limestone rock, derived from a Silurian bioherm (reef complex). The black-colored areas are degraded petroleum (crude oil) that has impregnated the limestone rock.Stratigraphy: Pinnacle Reef Member, Wabash Formation, Middle SilurianLocality: Monon Quarry, just south of the town of Monon, northern White County, northwestern Indiana, USA |
| 撮影日 | 2018-03-24 12:56:07 |
| 撮影者 | James St. John |
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