Original file (3,008 × 2,000 pixels, file size: 3.96 MB, MIME type: image/jpeg)
Summary
DescriptionStromatolites, Belt Supergroup, Glacier National Park.jpg |
Stromatolites (cut & polished slice) from the Precambrian of Montana (public display, Museum of the Rockies, Bozeman, Montana, USA). Stratigraphy: Snowslip Formation, Belt Supergroup, Mesoproterozoic, ~1.44 Ga. Locality: Glacier National Park, northwestern Montana, USA. Stromatolites are large, layered structures built up by mats of cyanobacteria. Stromatolites vary in appearance, ranging from slightly wrinkled horizontal laminations in sedimentary rocks to low mounds to prominent mounds to columnar structures and other forms. Stromatolites are most common in the Proterozoic fossil record. They are scarce today, but famous modern examples occur at Shark Bay, Western Australia. |
Date | |
Source | Stromatolites (Snowslip Formation, Belt Supergroup, Mesoproterozoic, 1.44 Ga; Glacier National Park, Montana, USA) 3 |
Author | James St. John |
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This image was originally posted to Flickr by jsj1771 at https://www.flickr.com/photos/47445767@N05/15015808670. It was reviewed on 11 September 2014 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
11 September 2014
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some value
copyright status
copyrighted
copyright license
Creative Commons Attribution 2.0 Generic
source of file
file available on the internet
captured with
Nikon D70s
inception
1 September 2008
exposure time
0.01666666666666666666 second
f-number
5.6
focal length
112 millimetre
media type
image/jpeg
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 00:26, 11 September 2014 | 3,008 × 2,000 (3.96 MB) | Tillman | Transferred from Flickr via Flickr2commons |
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Metadata
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Camera manufacturer | NIKON CORPORATION |
---|---|
Camera model | NIKON D70s |
Exposure time | 1/60 sec (0.016666666666667) |
F-number | f/5.6 |
Date and time of data generation | 11:12, 1 September 2008 |
Lens focal length | 112 mm |
Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop CS2 Macintosh |
File change date and time | 22:17, 8 January 2013 |
Y and C positioning | Co-sited |
Exposure Program | Not defined |
Exif version | 2.21 |
Date and time of digitizing | 11:12, 1 September 2008 |
Meaning of each component |
|
Image compression mode | 4 |
Exposure bias | 0 |
Maximum land aperture | 4.9 APEX (f/5.46) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash fired, strobe return light detected, auto mode |
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 | 168 mm |
Scene capture type | Standard |
Scene control | Low gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Supported Flashpix version | 1 |
Image width | 3,008 px |
Image height | 2,000 px |
Date metadata was last modified | 17:17, 8 January 2013 |
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