File:Magnetite-holmquistite-epidote meta-BIF, eastern coastal Sweden.jpg
Original file (3,736 × 1,952 pixels, file size: 2.73 MB, MIME type: image/jpeg)
Captions
Summary
[edit]DescriptionMagnetite-holmquistite-epidote meta-BIF, eastern coastal Sweden.jpg |
Meta-BIF (meta-banded iron formation) (6.3 cm across) from the Precambrian of Sweden. This strongly magnetic rock is a multiply-metamorphosed banded iron formation that comes from the waste rock piles of old Swedish iron mines (active from the 1100s to the late 1870s). The rock is composed principally of magnetite, epidote, holmquistite amphibole, and carbonate. Holmquistite is a rare amphibole that contains lithium - it's chemical formula is Li2Mg3Al2Si8O22(OH)2 - lithium magnesium hydroxy-aluminosilicate. On this rock's top surface, the holmquistite consists of very dark bluish needles, best seen near the lower left corner. This particular rock comes from the type locality for holmquistite. This rock has been metamorphosed more than once. A previously-existing meta-BIF was contact metamorphosed by intrusion of Nyköpingsgruvan pegmatitic granites and lithium pegmatites during the late Paleoproterozoic, at 1.8 Ga. Locality: spoils piles at Utö Mines, Utö, Stockholm Archipelago, Haninge Municipality, Stockholm County, eastern coastal Sweden. Reference on the geology of Utö, Sweden: Mansfeld, J. 2012. The Geology of Utö, Excursion Guide. 9 pp. |
Date | |
Source | Magnetite-holmquistite-epidote meta-BIF (Paleoproterozoic, 1.8 Ga metamorphism; Utö Mines, Utö, Stockholm Archipelago, eastern coastal Sweden) 1 |
Author | James St. John |
Licensing
[edit]- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
This image was originally posted to Flickr by jsj1771 at https://www.flickr.com/photos/47445767@N05/14987061520. It was reviewed on 9 September 2014 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
9 September 2014
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 15:57, 9 September 2014 | 3,736 × 1,952 (2.73 MB) | Tillman (talk | contribs) | Transferred from Flickr via Flickr2commons |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
File usage on other wikis
The following other wikis use this file:
- Usage on en.wikipedia.org
- Usage on id.wikipedia.org
- Usage on sr.wikipedia.org
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | Canon |
---|---|
Camera model | Canon PowerShot D10 |
Exposure time | 1/60 sec (0.016666666666667) |
F-number | f/9 |
ISO speed rating | 80 |
Date and time of data generation | 19:17, 7 September 2014 |
Lens focal length | 8.295 mm |
Orientation | Normal |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
Software used | Adobe Photoshop CS2 Macintosh |
File change date and time | 21:28, 7 September 2014 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 19:17, 7 September 2014 |
Meaning of each component |
|
Image compression mode | 3 |
APEX shutter speed | 5.90625 |
APEX aperture | 6.34375 |
APEX exposure bias | −1.3333333333333 |
Maximum land aperture | 3.34375 APEX (f/3.19) |
Metering mode | Pattern |
Flash | Flash fired, compulsory flash firing, red-eye reduction mode |
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 | Portrait |
Supported Flashpix version | 1 |
Image width | 3,736 px |
Image height | 1,952 px |
Date metadata was last modified | 17:28, 7 September 2014 |
IIM version | 2 |