File:Pseudo-clastic dike (Vinton Member, Logan Formation, Lower Mississippian; Rt. 16 roadcut northeast of Frazeysburg, Ohio, USA) (23980273327).jpg
![File:Pseudo-clastic dike (Vinton Member, Logan Formation, Lower Mississippian; Rt. 16 roadcut northeast of Frazeysburg, Ohio, USA) (23980273327).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/f/f1/Pseudo-clastic_dike_%28Vinton_Member%2C_Logan_Formation%2C_Lower_Mississippian%3B_Rt._16_roadcut_northeast_of_Frazeysburg%2C_Ohio%2C_USA%29_%2823980273327%29.jpg/800px-Pseudo-clastic_dike_%28Vinton_Member%2C_Logan_Formation%2C_Lower_Mississippian%3B_Rt._16_roadcut_northeast_of_Frazeysburg%2C_Ohio%2C_USA%29_%2823980273327%29.jpg?20191010022000)
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[edit]DescriptionPseudo-clastic dike (Vinton Member, Logan Formation, Lower Mississippian; Rt. 16 roadcut northeast of Frazeysburg, Ohio, USA) (23980273327).jpg |
The grayish rocks are part of the Vinton Member, the uppermost of four members of the Logan Formation. The Vinton consists of marine mixed siliciclastics - principally shales, siltstones, and sandstones. The brownish-colored feature in the middle of the photo superficially resembles a clastic dike - a sediment-filled fracture that intrudes country rocks. However, it's not a clastic dike. The prominent, irregularly-subvertical crack in the middle of the feature is a joint. Groundwater has moved through the joint and precipitated iron oxides in adjacent porous rocks, staining them brown. Stratigraphy: Vinton Member, upper Logan Formation, Osagean Series, upper Lower Mississippian Locality: Trinway West 6 Outcrop - roadcut on the northwestern side of Rt. 16, 1.0 miles northeast of the Rt. 16-Old Riley Road intersection, northeast of the town of Frazeysburg & west of the town of Trinway, northwestern Muskingum County, Ohio, USA (40° 08' 41.54" North latitude, 82° 05' 06.18" West longitude) |
Date | |
Source | Pseudo-clastic dike (Vinton Member, Logan Formation, Lower Mississippian; Rt. 16 roadcut northeast of Frazeysburg, Ohio, USA) |
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@N05/23980273327 (archive). It was reviewed on 10 October 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
10 October 2019
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current | 02:20, 10 October 2019 | ![]() | 4,000 × 3,000 (5.19 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 | 1/160 sec (0.00625) |
F-number | f/8 |
ISO speed rating | 80 |
Date and time of data generation | 12:11, 11 November 2017 |
Lens focal length | 6.2 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 | 00:40, 5 December 2017 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 12:11, 11 November 2017 |
Meaning of each component |
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APEX shutter speed | 7.3125 |
APEX aperture | 6 |
APEX exposure bias | −0.33333333333333 |
Maximum land aperture | 2.96875 APEX (f/2.8) |
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 | 19:40, 4 December 2017 |
Unique ID of original document | 5F955187640BAD4B667C98FD338D7223 |