File:Entrance to Grime's Graves - geograph.org.uk - 397322.jpg
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Entrance_to_Grime's_Graves_-_geograph.org.uk_-_397322.jpg (640 × 480 pixels, file size: 145 KB, MIME type: image/jpeg)
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[edit]DescriptionEntrance to Grime's Graves - geograph.org.uk - 397322.jpg |
English: Entrance to Grime's Graves An English Heritage Site; Grimes Graves is the only Neolithic flint mine open to visitors in Britain. A grassy lunar landscape of over 400 shafts, pits, quarries and spoil dumps, they were first named Grims Graves meaning the pagan god Grims quarries, or the Devils holes by the Anglo- Saxons. It was not until one of them was excavated in 1870 that they were found to be flint mines dug over 5,000 years ago, during the later Neolithic and early Bronze Ages.
What the prehistoric miners sought here was the fine quality jet-black flint floorstone, which occurs some nine metres below surface level. This was prized as an easily knapped material for axes and other tools and much later elsewhere for well-sparking flintlock muskets. Digging with red-deer antler picks, they sank shafts from which radiated gallery-tunnels, following the seams of flint. |
Date | |
Source | From geograph.org.uk |
Author | Jonathan Billinger |
Attribution (required by the license) InfoField | Jonathan Billinger / Entrance to Grime's Graves / |
InfoField | Jonathan Billinger / Entrance to Grime's Graves |
Camera location | 52° 29′ 08″ N, 0° 40′ 20″ E | View this and other nearby images on: OpenStreetMap | 52.485490; 0.672200 |
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Object location | 52° 29′ 07″ N, 0° 40′ 21″ E | View this and other nearby images on: OpenStreetMap | 52.485220; 0.672500 |
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Licensing
[edit]This image was taken from the Geograph project collection. See this photograph's page on the Geograph website for the photographer's contact details. The copyright on this image is owned by Jonathan Billinger and is licensed for reuse under the Creative Commons Attribution-ShareAlike 2.0 license.
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This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.
Attribution: Jonathan Billinger
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 17:36, 3 February 2011 | 640 × 480 (145 KB) | GeographBot (talk | contribs) | == {{int:filedesc}} == {{Information |description={{en|1=Entrance to Grime's Graves An English Heritage Site; Grimes Graves is the only Neolithic flint mine open to visitors in Britain. A grassy lunar landscape of over 400 shafts, pits, quarries and spo |
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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 | FUJIFILM |
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Camera model | FinePix E900 |
Exposure time | 1/350 sec (0.0028571428571429) |
F-number | f/2.8 |
ISO speed rating | 200 |
Date and time of data generation | 15:37, 4 April 2007 |
Lens focal length | 7.2 mm |
Orientation | Normal |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Digital Camera FinePix E900 Ver1.00 |
File change date and time | 15:37, 4 April 2007 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | 15:37, 4 April 2007 |
Image compression mode | 2 |
APEX shutter speed | 8.59 |
APEX aperture | 3 |
APEX brightness | 6.01 |
APEX exposure bias | 0 |
Maximum land aperture | 3 APEX (f/2.83) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
Color space | sRGB |
Focal plane X resolution | 3,331 |
Focal plane Y resolution | 3,331 |
Focal plane resolution unit | 3 |
Sensing method | One-chip color area sensor |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Scene capture type | Standard |
Sharpness | 3 |
Subject distance range | Unknown |
Structured data
Items portrayed in this file
depicts
some value
4 April 2007
52°29'7.76"N, 0°40'19.92"E
52°29'6.79"N, 0°40'21.00"E
200
0.0028571428571429 second
2.8
7.2 millimetre
Hidden categories:
- Information field template with formatting
- Files with coordinates missing SDC location of creation (52° N, 0° E)
- CC-BY-SA-2.0
- Images from Geograph Britain and Ireland
- Images from Geograph Britain and Ireland missing SDC depicts
- Images from Geograph Britain and Ireland missing SDC location of creation
- Images from Geograph Britain and Ireland missing SDC MIME type
- Images by Jonathan Billinger
- United Kingdom photographs taken on 2007-04-04