File:Mudstone (Graneros Formation, Upper Cretaceous; Ponca State Park, Nebraska, USA).jpg
![File:Mudstone (Graneros Formation, Upper Cretaceous; Ponca State Park, Nebraska, USA).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/3/30/Mudstone_%28Graneros_Formation%2C_Upper_Cretaceous%3B_Ponca_State_Park%2C_Nebraska%2C_USA%29.jpg/800px-Mudstone_%28Graneros_Formation%2C_Upper_Cretaceous%3B_Ponca_State_Park%2C_Nebraska%2C_USA%29.jpg?20221112191057)
Original file (2,797 × 1,842 pixels, file size: 3.63 MB, MIME type: image/jpeg)
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Summary
[edit]DescriptionMudstone (Graneros Formation, Upper Cretaceous; Ponca State Park, Nebraska, USA).jpg |
English: Mudstone from the Cretaceous of Nebraska, USA. (outdoor public display, Ashfall Fossil Beds State Historical Park, Nebraska, USA)
"Mudstone" is a fine-grained sedimentary rock. The term is terrible by itself, as is communicates little information. Geologists should not use the term "mudstone" without modifiers or clarification. In limestone classification, fine-grained limestones are called "mudstone", but they should be designated "lime mudstone" to prevent confusion. For non-carbonate rocks, "mudstone" is a near-synonym of "shale". To prevent confusion, the term "siliciclastic mudstone" or "mudrock" should be used instead. Some mudrocks are somewhat calcareous. I do not know what type of "mudstone" the specimen seen here is. Stratigraphy: Graneros Formation, lower Upper Cretaceous Locality: attributed to Ponca State Park, far-northeastern Nebraska, USA |
Date | |
Source | https://www.flickr.com/photos/47445767@N05/52255094550/ |
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@N05/52255094550. It was reviewed on 15 November 2022 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
15 November 2022
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 19:10, 12 November 2022 | ![]() | 2,797 × 1,842 (3.63 MB) | Ser Amantio di Nicolao (talk | contribs) | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/52255094550/ with UploadWizard |
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Metadata
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Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D70s |
Exposure time | 1/200 sec (0.005) |
F-number | f/8 |
ISO speed rating | 200 |
Date and time of data generation | 11:53, 5 August 2011 |
Lens focal length | 60 mm |
Width | 3,008 px |
Height | 2,000 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop Elements 18.0 (Macintosh) |
File change date and time | 18:53, 31 July 2022 |
Y and C positioning | Co-sited |
Exposure Program | Not defined |
Exif version | 2.21 |
Date and time of digitizing | 11:53, 5 August 2011 |
Meaning of each component |
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Image compression mode | 4 |
APEX shutter speed | 7.643856 |
APEX aperture | 6 |
APEX exposure bias | 0 |
Maximum land aperture | 4.5 APEX (f/4.76) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire |
DateTime subseconds | 10 |
DateTimeOriginal subseconds | 10 |
DateTimeDigitized subseconds | 10 |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 90 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Serial number of camera | 200638ad |
Lens used | 18.0-200.0 mm f/3.5-5.6 |
Date metadata was last modified | 14:53, 31 July 2022 |
Unique ID of original document | 0B6755CC9F3D3AFE50841C5B5C28E0FE |