File:Villiaumitic lujavrite, Illímaussaq Complex, Kvanefjeld GD.jpg
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Summary
[edit]DescriptionVilliaumitic lujavrite, Illímaussaq Complex, Kvanefjeld GD.jpg |
Villiaumitic lujavrite (~1.75 cm across) from the Precambrian of Greenland. This is a rare intrusive igneous rock with a bizarre name: villiaumitic lujavrite. The dark gray rock itself is lujavrite, a variety of nepheline syenite having amphibole, aegirine pyroxene, nepheline, and feldspar. The red spots in the rock are crystals of the the rare halide mineral villiaumite (NaF - sodium fluoride). Geologic unit & age: Illímaussaq Complex (Illímaussaq Intrusion; Illímaussaq Alkaline Complex), late Mesoproterozoic, 1.16 Ga Locality: Kvanefjeld, southern Greenland |
Date | |
Source | Villiaumitic lujavrite (Illímaussaq Complex, late Mesoproterozoic, 1.16 Ga; Kvanefjeld, southern Greenland) 4 |
Author | James St. John |
Other versions | More photos of this specimen |
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This image was originally posted to Flickr by jsj1771 at https://www.flickr.com/photos/47445767@N05/15177146800. It was reviewed on 27 September 2014 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
27 September 2014
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current | 02:26, 27 September 2014 | 2,744 × 2,948 (3.62 MB) | Tillman (talk | contribs) | Transferred from Flickr via Flickr2commons |
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Camera manufacturer | OLYMPUS IMAGING CORP. |
Camera model | TG-1 |
Exposure time | 1/100 sec (0.01) |
F-number | f/4.2 |
ISO speed rating | 800 |
Date and time of data generation | 16:27, 26 September 2014 |
Lens focal length | 13.47 mm |
Orientation | Normal |
Horizontal resolution | 314 dpi |
Vertical resolution | 314 dpi |
Software used | Adobe Photoshop CS2 Macintosh |
File change date and time | 18:46, 26 September 2014 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.3 |
Date and time of digitizing | 16:27, 26 September 2014 |
Meaning of each component |
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APEX exposure bias | −0.3 |
Maximum land aperture | 2 APEX (f/2) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 74 mm |
Scene capture type | Standard |
Scene control | High gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Receiver status | Measurement interoperability |
Reference for direction of image | Magnetic direction |
Direction of image | 313 |
GPS tag version | 0.0.3.2 |
Supported Flashpix version | 1 |
Image width | 2,744 px |
Image height | 2,948 px |
Date metadata was last modified | 14:46, 26 September 2014 |
IIM version | 2 |