File:Aggregate concretion 1.jpg
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Summary
[edit]DescriptionAggregate concretion 1.jpg |
English: Concretions are post-depositional structures found in some sedimentary successions, particularly in shales. They vary in mineralogy, size, and shape, but often have slightly flattened spheroidal shapes. They typically form by post-depositional mineralization around some nucleus (a rock fragment or fossil fragment).
The specimen shown here formed by fusion of many smaller concretions - hence the term "aggregate concretion" or "composite concretion". Collectors call these objects "clay babies". |
Date | |
Source | Own work |
Author | James St. John |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 00:56, 29 December 2018 | 2,211 × 1,259 (2.09 MB) | Jsj1771 (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 | 1/250 sec (0.004) |
F-number | f/3.2 |
ISO speed rating | 80 |
Date and time of data generation | 13:02, 7 April 2018 |
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 | 14:29, 6 May 2018 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 13:02, 7 April 2018 |
Meaning of each component |
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Image compression mode | 3 |
APEX shutter speed | 7.96875 |
APEX aperture | 3.34375 |
APEX exposure bias | −0.66666666666667 |
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 |
Focal plane Y resolution | 16,483.516483516 |
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 | 10:29, 6 May 2018 |
Unique ID of original document | 6B343EFE2C0299A3CBF0B97565B57A2D |
IIM version | 18,755 |