File:Bluegreen-shale-335x-scalebar.jpg
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![File:Bluegreen-shale-335x-scalebar.jpg](http://178.128.105.246/cars-https-upload.wikimedia.org/wikipedia/commons/thumb/2/2d/Bluegreen-shale-335x-scalebar.jpg/738px-Bluegreen-shale-335x-scalebar.jpg?20191206222504)
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Captions
Blue-green shale from the Cretaceous period Coleraine formation in Minnesota.
Summary
[edit]DescriptionBluegreen-shale-335x-scalebar.jpg |
English: Blue-green shale from the Coleraine formation is a fine mixture of hematite and limonite in a greenish iron-clay matrix. The Coleraine formation is a Cretaceous period geological formation in Minnesota that contains sediments and fossils from the Western Interior Seaway approximately 90 million years ago. This layer was exposed by iron mining on the Mesabi Iron Range. This rock was found in Hill Annex Mine State Park in Calumet, MN. The image was taken with a ZEISS Smartzoom 5 microscope at 335X magnification using extended depth of field. |
Date | |
Source | Own work |
Author | Rylan Bachman |
Camera location | 47° 19′ 16″ N, 93° 16′ 28″ W ![]() | View this and other nearby images on: OpenStreetMap | ![]() |
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Licensing
[edit]I, the copyright holder of this work, hereby publish it under the following license:
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This image was uploaded as part of Wiki Science Competition 2019. |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 22:25, 6 December 2019 | ![]() | 1,600 × 1,300 (1.14 MB) | Wi-kiry-lan (talk | contribs) | User created page with UploadWizard |
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Image title | EDF (Extended Depth of Field) |
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Camera manufacturer | 4703000623 |
Author | ZEISS |
Exposure time | 8/65 sec (0.12307692307692) |
User comments | Metric |
Width | 1,600 px |
Height | 1,200 px |
Bits per component |
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Compression scheme | LZW |
Pixel composition | RGB |
Number of components | 3 |
Number of rows per strip | 2 |
Horizontal resolution | 96 dpi |
Vertical resolution | 96 dpi |
Data arrangement | chunky format |
Software used | paint.net 4.0.16 |
APEX brightness | 0 |
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10 November 2019
47°19'16.000"N, 93°16'27.998"W
0.12307692307692307692 second
image/jpeg
286bc8d8d52c88c05d2c9547f344518283a56aef
1,192,293 byte
1,300 pixel
1,600 pixel
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