File:Frosterley Marble (Great Limestone, Mississippian; Rogerley Quarry, England) (14805050675).jpg
![File:Frosterley Marble (Great Limestone, Mississippian; Rogerley Quarry, England) (14805050675).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/4/41/Frosterley_Marble_%28Great_Limestone%2C_Mississippian%3B_Rogerley_Quarry%2C_England%29_%2814805050675%29.jpg/652px-Frosterley_Marble_%28Great_Limestone%2C_Mississippian%3B_Rogerley_Quarry%2C_England%29_%2814805050675%29.jpg?20191207175644)
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[edit]DescriptionFrosterley Marble (Great Limestone, Mississippian; Rogerley Quarry, England) (14805050675).jpg |
"Frosterley Marble" from the Mississippian of Britain. (field of view 12.5 cm across) In the commercial decorative stone trade, “marble” is used to refer to a wide variety of relatively soft rocks (H = 3 to 5) that will take a fine polish. These include true marbles and rocks that aren’t marbles, such as limestones, tectonic breccias, and serpentinites. True limestones are calcitic biogenic and ~chemical sedimentary rocks. "Frosterley Marble" is a fossiliferous limestone from Rogerley Quarry at Frosterley, Durham County, northern England. The large, light gray-brown colored, rounded objects in the rock are fossil rugose corals (“horn corals”) - Dibunophyllum bipartitum (M’Coy, 1849) (Animalia, Cnidaria, Anthozoa, Rugosa, Streptelasmatina, Zaphrenticae, Aulophyllidae). This coral species is commonly encountered in the Great Limestone, a lower Upper Mississippian unit (upper Visean Stage/upper Asbian Stage, Lower Carboniferous, ~329-330 million years) in northern England. |
Date | |
Source | Frosterley Marble (Great Limestone, Mississippian; Rogerley Quarry, England) |
Author | James St. John |
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/14805050675 (archive). It was reviewed on 7 December 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
7 December 2019
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 17:56, 7 December 2019 | ![]() | 2,442 × 2,244 (1.72 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
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Orientation | Normal |
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Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Adobe Photoshop CS2 Macintosh |
File change date and time | 18:29, 1 August 2014 |
Color space | Uncalibrated |
Image width | 2,442 px |
Image height | 2,244 px |
Date and time of digitizing | 14:29, 1 August 2014 |
Date metadata was last modified | 14:29, 1 August 2014 |