File:Lithic breccia (Quaternary; Flint Ridge, Ohio, USA) 3.jpg
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[edit]DescriptionLithic breccia (Quaternary; Flint Ridge, Ohio, USA) 3.jpg |
English: Lithic breccia from the Quaternary of Ohio, USA.
Sedimentary rocks form by the solidification of loose sediments. Loose sediments become hard rocks by the processes of deposition, burial, compaction, dewatering, and cementation. There are three categories of sedimentary rocks: 1) Siliciclastic sedimentary rocks form by the solidification of sediments produced by weathering & erosion of any previously existing rocks. 2) Biogenic sedimentary rocks form by the solidification of sediments that were once-living organisms (plants, animals, micro-organisms). 3) Chemical sedimentary rocks form by the solidification of sediments formed by inorganic chemical reactions. Most sedimentary rocks have a clastic texture, but some are crystalline. Breccia is an uncommon, coarse-grained, siliciclastic sedimentary rock. Breccias form in many ways (sedimentary breccias, volcanic breccias, tectonic breccias/fault breccias, collapse breccias, boiling breccias, hydrothermal breccias, xenolith breccias, seismite breccias, injectite breccias, etc.), but they all have the same general appearance. Sedimentary breccias contain a mix of large & small grains. The large grains (gravel - pebbles or cobbles or boulders) are angular to subangular in shape, and they are surrounded by a finer-grained matrix, usually sand or mud. The juvenile breccia shown above is principally composed of clasts eroded from Illinoian-aged glacial till (= Middle Pleistocene). The blackish-colored rock is flint (= chert). The clasts have become cemented without subsequent significant burial. Age: Late Pleistocene or Holocene Locality: Taft Reserve, western Flint Ridge, southeastern Licking County, east-central Ohio, USA |
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Source | https://www.flickr.com/photos/47445767@N05/27718627385/ |
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@N05/27718627385 (archive). It was reviewed on 15 February 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
15 February 2020
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current | 18:28, 15 February 2020 | ![]() | 3,619 × 2,637 (3.36 MB) | Ser Amantio di Nicolao (talk | contribs) | User created page with UploadWizard |
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot D10 |
Exposure time | 1/60 sec (0.016666666666667) |
F-number | f/9 |
ISO speed rating | 80 |
Date and time of data generation | 08:51, 7 May 2016 |
Lens focal length | 7.23 mm |
Image title | |
Width | 4,000 px |
Height | 3,000 px |
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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 | 21:20, 16 June 2016 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 08:51, 7 May 2016 |
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Image compression mode | 3 |
APEX shutter speed | 5.90625 |
APEX aperture | 6.34375 |
APEX exposure bias | −0.66666666666667 |
Maximum land aperture | 3.34375 APEX (f/3.19) |
Metering mode | Pattern |
Flash | Flash fired, compulsory flash firing, red-eye reduction mode |
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 | Portrait |
Lens used | 6.2-18.6 mm |
Date metadata was last modified | 15:20, 16 June 2016 |
Unique ID of original document | 2C3ADE09EA726850512C14CA1DF53F14 |