File:Columbus Limestone (Middle Devonian) (Hayden Run, Dublin, Ohio, USA) 5 (35595104142).jpg
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Summary
[edit]DescriptionColumbus Limestone (Middle Devonian) (Hayden Run, Dublin, Ohio, USA) 5 (35595104142).jpg |
Fossiliferous limestone in the Devonian of Ohio, USA. The Columbus Limestone is a significant carbonate unit in the Devonian of central and northern Ohio. It's actually part of a much more widespread sheet of Devonian carbonates that extends from New York State to the Midwest. The Columbus Limestone represents deposition in a subtropical, shallow-water, carbonate platform environment. The rocks are principally micritic limestones, fossiliferous wackestones, and fossiliferous packstones. Some chert nodules are present in the unit. Fossils are typical Paleozoic shallow marine invertebrates - favositid corals, rugose corals, stromatoporoids, brachiopods, crinoids, blastoids, bryozoans, trilobites, bivalves, gastropods, cephalopods, rostroconchs, and tentaculites. Microfossils include conodonts and charophyte oogonia. Other fossils in the Columbus Limestone include vertebrates (fish), land plants (rare), and trace fossils. Some fossil horizons in the Columbus Limestone are partially silicified. Stratigraphy: Marblehead Member, Columbus Limestone, Eifelian Stage, lower Middle Devonian Locality: cliff outcrop along Hayden Run (an east-flowing tributary of the Scioto River), just downstream from Hayden Falls, just south of Hayden Run Road & just east of Dublin Road, Dublin, northwestern Franklin County, central Ohio, USA |
Date | |
Source | Columbus Limestone (Middle Devonian) (Hayden Run, Dublin, Ohio, USA) 5 |
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@N05/35595104142 (archive). It was reviewed on 12 October 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
12 October 2019
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current | 04:31, 12 October 2019 | ![]() | 2,912 × 2,943 (4.91 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot D10 |
Exposure time | 1/50 sec (0.02) |
F-number | f/3.2 |
ISO speed rating | 80 |
Date and time of data generation | 14:52, 3 July 2017 |
Lens focal length | 8.295 mm |
Image title | |
Width | 4,000 px |
Height | 3,000 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
Software used | Adobe Photoshop Elements 13.0 (Macintosh) |
File change date and time | 17:13, 6 July 2017 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 14:52, 3 July 2017 |
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Image compression mode | 3 |
APEX shutter speed | 5.65625 |
APEX aperture | 3.34375 |
APEX exposure bias | −1 |
Maximum land aperture | 3.34375 APEX (f/3.19) |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 16,460.905349794 |
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Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Landscape |
Lens used | 6.2-18.6 mm |
Date metadata was last modified | 13:13, 6 July 2017 |
Unique ID of original document | E97E9D5B93F353BD0EE16EDA509EE135 |