File:Silica Formation-Dundee Limestone-Anderson Limestone? (Benchmark Materials-France Stone Company Sylvania Quarry, Lucas County, Ohio, USA) 1 (48367295547).jpg
![File:Silica Formation-Dundee Limestone-Anderson Limestone? (Benchmark Materials-France Stone Company Sylvania Quarry, Lucas County, Ohio, USA) 1 (48367295547).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/2/2b/Silica_Formation-Dundee_Limestone-Anderson_Limestone%3F_%28Benchmark_Materials-France_Stone_Company_Sylvania_Quarry%2C_Lucas_County%2C_Ohio%2C_USA%29_1_%2848367295547%29.jpg/800px-Silica_Formation-Dundee_Limestone-Anderson_Limestone%3F_%28Benchmark_Materials-France_Stone_Company_Sylvania_Quarry%2C_Lucas_County%2C_Ohio%2C_USA%29_1_%2848367295547%29.jpg?20191207190933)
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[edit]DescriptionSilica Formation-Dundee Limestone-Anderson Limestone? (Benchmark Materials-France Stone Company Sylvania Quarry, Lucas County, Ohio, USA) 1 (48367295547).jpg |
This quarry near Toledo, Ohio targeted limestone for cement-making purposes. The gray shale-rich material at center-left is an overburden unit of Middle Devonian age called the Silica Formation (also known as the Silica Shale). The Silica Formation is richly fossiliferous with typical mid-Paleozoic marine invertebrates such as brachiopods, bryozoans, corals, crinoids, and trilobites. The limestone-rich unit below it (see the quarry highwall in the distance) is the Dundee Limestone (Middle Devonian). The Anderson Limestone is supposedly present below the Dundee in this quarry (I did not have this quarry's precise stratigraphy unambiguously pointed out to me). 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-Dundee Limestone-Anderson Limestone? (Benchmark Materials-France Stone Company Sylvania Quarry, Lucas County, Ohio, USA) 1 |
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@N05/48367295547 (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 | ![]() | 1,797 × 1,050 (2.87 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
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Width | 1,797 px |
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Height | 1,206 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 | 14:46, 24 July 2019 |
Exif version | 2.21 |
Color space | sRGB |
Unique ID of original document | 28A85A0CC7AAED9A5B27E21400BF7744 |
Date and time of digitizing | 10:24, 24 July 2019 |
Date metadata was last modified | 10:46, 24 July 2019 |