File:Silica Formation & top of the Dundee Limestone (Middle Devonian; Benchmark Materials-France Stone Company Sylvania Quarry, Lucas County, Ohio, USA) 4 (48372726066).jpg
![File:Silica Formation & top of the Dundee Limestone (Middle Devonian; Benchmark Materials-France Stone Company Sylvania Quarry, Lucas County, Ohio, USA) 4 (48372726066).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/b/b3/Silica_Formation_%26_top_of_the_Dundee_Limestone_%28Middle_Devonian%3B_Benchmark_Materials-France_Stone_Company_Sylvania_Quarry%2C_Lucas_County%2C_Ohio%2C_USA%29_4_%2848372726066%29.jpg/800px-thumbnail.jpg?20191207190955)
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[edit]DescriptionSilica Formation & top of the Dundee Limestone (Middle Devonian; Benchmark Materials-France Stone Company Sylvania Quarry, Lucas County, Ohio, USA) 4 (48372726066).jpg |
Limestone & shale in the Devonian of Ohio, USA. This quarry near Toledo, Ohio targeted limestone for cement-making purposes. An interbedded limestone and shale unit of Middle Devonian age called the Silica Formation (also known as the Silica Shale) is the overburden at this site. The Silica Formation is richly fossiliferous with typical mid-Paleozoic marine invertebrates such as brachiopods, bryozoans, corals, crinoids, and trilobites. The extensive flat surface in the photo is the top of the underlying unit, the Dundee Limestone, which is also Middle Devonian. Locality: Benchmark Materials-France Stone Company Sylvania Quarry (= Hanson Aggregates Midwest Incorporated Sylvania West Quarry; = Medusa South Quarry & Medusa South-South Quarry), north of Sylvania Avenue & south of Brint Road & west of Centennial Road, town of Sylvania, northwestern Lucas County, northwestern Ohio, USA (41° 41' 27.04" North latitude, 83° 44' 47.40" West longitude) Locality info. at: <a href="https://www.mindat.org/loc-294595.html" rel="noreferrer nofollow">www.mindat.org/loc-294595.html</a> |
Date | |
Source | Silica Formation & top of the Dundee Limestone (Middle Devonian; Benchmark Materials-France Stone Company Sylvania Quarry, Lucas County, Ohio, USA) 4 |
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@N05/48372726066 (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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current | 19:09, 7 December 2019 | ![]() | 1,799 × 1,199 (3.15 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
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Width | 1,799 px |
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Height | 1,199 px |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Adobe Photoshop Elements 16.0 (Macintosh) |
File change date and time | 14:52, 24 July 2019 |
Exif version | 2.21 |
Color space | sRGB |
Unique ID of original document | 8F0FDC55F8EE77F71B6423ED67393F3A |
Date and time of digitizing | 10:23, 24 July 2019 |
Date metadata was last modified | 10:52, 24 July 2019 |