File:Grand Canyon National Park Brochantite & Cyanotrichite (6214785364).jpg
Original file (4,318 × 3,264 pixels, file size: 3.18 MB, MIME type: image/jpeg)
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Summary
[edit]DescriptionGrand Canyon National Park Brochantite & Cyanotrichite (6214785364).jpg |
GRCA_108168_ While Grand Canyon is most famous for vast views of towering cliffs, it holds additional geologic treasures, some as tiny as the delicate blue-green needles of a grandviewite crystal. Pete Berry and partners developed the Grandview Mine from two mining claims filed in 1890. The Grandview Trail was built in 1892-1893 to service the mine to haul ore out of the canyon by pack train. The ore consisted mostly of copper sulfate minerals including cyanotrichite, brochantite, and chalcoalumite, along with copper carbonates such as azurite and malachite. Like many historic mines in Grand Canyon, including the Orphan Mine, the mineralized zone is in a breccia pipe, which is a cylindrical mass of highly fractured rock. In the Grand Canyon region, breccia pipes formed from the collapse of solution caverns in the Redwall Limestone. The highly porous brecciated rock in these features was mineralized by copper- and/or uranium-bearing fluids. Learn more here: <a href="http://www.nps.gov/grca/naturescience/cynsk-v25.htm" rel="nofollow">www.nps.gov/grca/naturescience/cynsk-v25.htm</a> NPS photo by Michael Quinn |
Date | |
Source | Grand Canyon National Park: Brochantite & Cyanotrichite |
Author | Grand Canyon National Park |
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This image was originally posted to Flickr by Grand Canyon NPS at https://flickr.com/photos/50693818@N08/6214785364. It was reviewed on 21 November 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
21 November 2020
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current | 20:41, 21 November 2020 | 4,318 × 3,264 (3.18 MB) | Tm (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 D7000 |
Exposure time | 1/5 sec (0.2) |
F-number | f/18 |
ISO speed rating | 200 |
Date and time of data generation | 16:38, 1 September 2011 |
Lens focal length | 70 mm |
Copyright holder | |
Width | 4,928 px |
Height | 3,264 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop CS5 Windows |
File change date and time | 13:21, 2 September 2011 |
Y and C positioning | Co-sited |
Exposure Program | Manual |
Exif version | 2.3 |
Date and time of digitizing | 16:38, 1 September 2011 |
Meaning of each component |
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Image compression mode | 4 |
APEX shutter speed | 2.321928 |
APEX aperture | 8.33985 |
APEX exposure bias | 0 |
Maximum land aperture | 4.9 APEX (f/5.46) |
Subject distance | 0.5 meters |
Metering mode | Pattern |
Light source | Tungsten (incandescent light) |
Flash | Flash did not fire, compulsory flash suppression |
DateTime subseconds | 30 |
DateTimeOriginal subseconds | 30 |
DateTimeDigitized subseconds | 30 |
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 | Manual exposure |
White balance | Manual white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 105 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
GPS tag version | 2.3.0.0 |
Serial number of camera | 3052643 |
Lens used | 18.0-105.0 mm f/3.5-5.6 |
Date metadata was last modified | 06:21, 2 September 2011 |
Unique ID of original document | DAEBBB55C3009EC236358BD204F7211D |
IIM version | 18,584 |