File:Flake (profile) (FindID 442768).jpg
Original file (960 × 1,280 pixels, file size: 460 KB, MIME type: image/jpeg)
Captions
Summary
[edit]flake (profile) | |||
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Photographer |
Royal Institution of Cornwall, Anna Tyacke, 2011-05-28 13:51:18 |
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Title |
flake (profile) |
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Description |
English: Chert flake, semi-circular in plan, rectangular in profile and section, which appears to be a struck piece but with no secondary working. There is a notch half way down the right margin of the ventral face, which may have been used as a graver, but may also be accidental. The profile of the flake suggests it may have been a core tablet or a core platform rejuvenation flake, as it has several straight sides which could the beginning of flakes taken off this original platform. The flake is very water worn so that it is difficult to identify the material (Rosemary Stewart pers comm). The colour of the chert or flint is a mottled orangey-brown with red marks from iron staining on the surface. The length to breadth ratio is about 2:1.
Bond (2004) illustrates a graver on page 107, Fig.5.91, No.107, which is dated from the Early Mesolithic, and a core tablet on page 110, Fig.5.94, No.L7, which is dated from the Later Mesolithic. Nick Ashton (Curator of the Palaeolithic Collections at the British Museum) has suggested that it is part of a much larger flake as it has many flake scars from several directions, hit with a hard hammer (such as a pebble) and then rolled in river gravels so it is stained and worn, suggesting it is earlier rather than later in date. Possibly from a Levallois flake or hand axe, which would date from around 250,000 to 40,000 BC. |
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Depicted place | (County of findspot) Cornwall | ||
Date | between 150000 BC and 9500 BC | ||
Accession number |
FindID: 442768 Old ref: CORN-3B7A82 Filename: May11finz 007.jpg |
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Credit line |
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Source |
https://finds.org.uk/database/ajax/download/id/329791 Catalog: https://finds.org.uk/database/images/image/id/329791/recordtype/artefacts archive copy at the Wayback Machine Artefact: https://finds.org.uk/database/artefacts/record/id/442768 |
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Permission (Reusing this file) |
Attribution-ShareAlike License version 4.0 (verified 2 December 2020) | ||
Other versions |
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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 | 07:07, 23 January 2017 | 960 × 1,280 (460 KB) | Fæ (talk | contribs) | Portable Antiquities Scheme, CORN, FindID: 442768, mesolithic, page 251, batch count 4459 |
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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 | 5/836 sec (0.0059808612440191) |
F-number | f/3.7 |
ISO speed rating | 100 |
Date and time of data generation | 11:42, 26 May 2011 |
Lens focal length | 18.4 mm |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | E4500v1.2 |
File change date and time | 11:42, 26 May 2011 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | 11:42, 26 May 2011 |
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 |