File:Auriferous volcanic breccia (Little Annie Mine, Summitville Mining District, San Juan Mountains, Colorado, USA) 4 (16422301144).jpg
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Summary
editDescriptionAuriferous volcanic breccia (Little Annie Mine, Summitville Mining District, San Juan Mountains, Colorado, USA) 4 (16422301144).jpg |
Auriferous volcanic breccia from Colorado, USA. (public display, Denver Museum of Nature & Science, Denver, Colorado) This fantastically gold-rich rock comes from Colorado's Little Annie Mine in the San Juan Mountains. The 114 pound boulder has an estimated 316 troy ounces of native gold. The lithology hosting the gold is a porous volcanic breccia of Tertiary age. Locality: loose boulder along Little Annie Mine, just below the Little Annie Mine, Summitville Mining District, San Juan Mountains, Colorado, USA |
Date | |
Source | Auriferous volcanic breccia (Little Annie Mine, Summitville Mining District, San Juan Mountains, Colorado, USA) 4 |
Author | James St. John |
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This image was originally posted to Flickr by jsj1771 at https://www.flickr.com/photos/47445767@N05/16422301144. It was reviewed on 6 April 2015 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
6 April 2015
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current | 20:36, 6 April 2015 | 4,000 × 3,000 (4.36 MB) | Jacopo Werther (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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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/4.9 |
ISO speed rating | 320 |
Date and time of data generation | 11:08, 25 October 2012 |
Lens focal length | 18.6 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 | 14:31, 5 April 2015 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 11:08, 25 October 2012 |
Meaning of each component |
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Image compression mode | 3 |
APEX shutter speed | 5.90625 |
APEX aperture | 4.59375 |
APEX exposure bias | −0.66666666666667 |
Maximum land aperture | 4.59375 APEX (f/4.91) |
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 | Standard |
Lens used | 6.2-18.6 mm |
Date metadata was last modified | 10:31, 5 April 2015 |
Unique ID of original document | 27394E154C27D00302FA0CE5968064D1 |