File:Marlstone aggregate concretion (Sault Ste. Marie, Michigan, USA.JPG
Original file (1,906 × 1,846 pixels, file size: 1.71 MB, MIME type: image/jpeg)
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Summary
[edit]DescriptionMarlstone aggregate concretion (Sault Ste. Marie, Michigan, USA.JPG |
Marlstone (lime-clay) aggregate concretion from Sault Ste. Marie, eastern Upper Peninsula of Michigan, USA (public display, Field Museum of Natural History, Chicago, Illinois, USA). 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). |
Date | |
Source | Marlstone aggregate concretion (Sault Ste. Marie, Michigan, USA) 2 |
Author | James St. John |
Licensing
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/15117271696. It was reviewed on 11 May 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
11 May 2020
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 06:06, 11 May 2020 | 1,906 × 1,846 (1.71 MB) | Tillman (talk | contribs) | Transferred from Flickr via #flickr2commons |
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Metadata
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Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D70s |
Exposure time | 1/60 sec (0.016666666666667) |
F-number | f/5.3 |
Date and time of data generation | 10:32, 11 June 2010 |
Lens focal length | 95 mm |
Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop CS2 Macintosh |
File change date and time | 14:55, 4 September 2014 |
Y and C positioning | Co-sited |
Exposure Program | Not defined |
Exif version | 2.21 |
Date and time of digitizing | 10:32, 11 June 2010 |
Meaning of each component |
|
Image compression mode | 4 |
APEX exposure bias | 0 |
Maximum land aperture | 4.8 APEX (f/5.28) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash fired, strobe return light detected, auto mode |
DateTime subseconds | 80 |
DateTimeOriginal subseconds | 80 |
DateTimeDigitized subseconds | 80 |
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 | 142 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Supported Flashpix version | 1 |
Image width | 1,906 px |
Image height | 1,846 px |
Date metadata was last modified | 10:55, 4 September 2014 |