File:Neolithic greenstone adze (profile) (FindID 258184).jpg
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Summary
[edit]Neolithic greenstone adze (profile) | |||
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Photographer |
Royal Institution of Cornwall, Anna Tyacke, 2009-06-07 00:48:18 |
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Title |
Neolithic greenstone adze (profile) |
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Description |
English: Incomplete metagabbroic greenstone adze, which has been petrologically analysed by Dr. Roger Taylor as part of the Clodgy Moor Project.
More than half of the adze remains, including the blade end, and the recorder cannot be sure from the broken butt end how long the adze originally was, but it is tapering towards the butt end. The adze is tear-shaped in plan and plano-convex in profile and in 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. There are several fresh breaks to the adze which have probably been caused by being struck by the plough. The greenstone is typical of that found in the west of Cornwall from known outcrops and contains pale felspars and dark amphibole inclusions (Dr. Roger Taylor pers comm - see notes). 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 2300 BC | ||
Accession number |
FindID: 258184 Old ref: CORN-30D0E1 Filename: June09finz 006.jpg |
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Credit line |
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Source |
https://finds.org.uk/database/ajax/download/id/213242 Catalog: https://finds.org.uk/database/images/image/id/213242/recordtype/artefacts archive copy at the Wayback Machine Artefact: https://finds.org.uk/database/artefacts/record/id/258184 |
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Permission (Reusing this file) |
Attribution-ShareAlike License | ||
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Licensing
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File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 20:54, 22 January 2017 | ![]() | 960 × 1,280 (451 KB) | Fæ (talk | contribs) | Portable Antiquities Scheme, CORN, FindID: 258184, neolithic, page 187, batch count 3307 |
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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 | 1/44 sec (0.022727272727273) |
F-number | f/2.9 |
ISO speed rating | 100 |
Date and time of data generation | 12:04, 2 June 2009 |
Lens focal length | 11.1 mm |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | E4500v1.2 |
File change date and time | 12:04, 2 June 2009 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | 12:04, 2 June 2009 |
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 |