File:Adze (plan) (FindID 404201).jpg
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Captions
Summary edit
adze (plan) | |||
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Photographer |
Royal Institution of Cornwall, Anna Tyacke, 2010-08-25 23:52:31 |
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Title |
adze (plan) |
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Description |
English: Greenstone or epidiorite adze, tear-shaped in plan and plano-convex in profile and section. The distinct curvature of one side of the blade, while the other side is flat, suggests that the implement was used as an adze, for woodworking, rather than an axe.
The greenstone is thermally metamorphosed from an aureole of Lands End granite, and has been used as it was formed rather than pecked and ground into shape, apart from the blade end which has been worked. The butt end has a granite vein running through it which stands proud of the greenstone which has recrystalised on either side of the vein as the granite heated up the greenstone around it (Roger Taylor pers comm).
A similar example has been excavated from the Neolithic settlement at Carn Brea and is illustrated in Mercer (1981) on page 155, Fig.64, No.S6. |
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Depicted place | (County of findspot) Cornwall | ||
Date | between 4500 BC and 2150 BC | ||
Accession number |
FindID: 404201 Old ref: CORN-58D753 Filename: Aug10finds 012.jpg |
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Credit line |
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Source |
https://finds.org.uk/database/ajax/download/id/294727 Catalog: https://finds.org.uk/database/images/image/id/294727/recordtype/artefacts archive copy at the Wayback Machine Artefact: https://finds.org.uk/database/artefacts/record/id/404201 |
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Permission (Reusing this file) |
Attribution-ShareAlike License version 4.0 (verified 30 November 2020) | ||
Other versions |
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Licensing edit
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File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 04:27, 23 January 2017 | 960 × 1,280 (452 KB) | Fæ (talk | contribs) | Portable Antiquities Scheme, CORN, FindID: 404201, neolithic, page 233, batch count 4133 |
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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 | NIKON |
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Camera model | E4500 |
Exposure time | 5/146 sec (0.034246575342466) |
F-number | f/2.9 |
ISO speed rating | 100 |
Date and time of data generation | 15:59, 28 July 2010 |
Lens focal length | 10.4 mm |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | E4500v1.2 |
File change date and time | 15:59, 28 July 2010 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | 15:59, 28 July 2010 |
Meaning of each component |
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Image compression mode | 4 |
APEX exposure bias | 0 |
Maximum land aperture | 2.8 APEX (f/2.64) |
Metering mode | Center weighted average |
Light source | Tungsten (incandescent light) |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
File source | Digital still camera |
Scene type | A directly photographed image |