File:Mesolithic microburin (FindID 614826).jpg
Original file (4,608 × 2,932 pixels, file size: 3.7 MB, MIME type: image/jpeg)
Captions
Summary
[edit]Mesolithic microburin | |||
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Photographer |
Somerset County Council, Laura Burnett, 2014-05-06 15:53:35 |
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Title |
Mesolithic microburin |
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Description |
English: Knapped flint secondary blade with retouch creating two notches possibly as a preliminary to making a microlith. The proximal end, with the bulb of percussion, has already been removed, probably for the same purpose. The percussion ripploes remain on the ventral face thought the bulb is removed. It is broadly triangular in plan, thickening at the distal end, with aris runing down the centre of the dorsal face and scars suggesting previous parallel blade removals from the same platform. There is a small patch (less than 5%) of cortex at the distal end.
The edges are chipped all the way around on both faces but two deliberate notches have been created from the ventral face, one on each edge half way down the remaining blade. The proximal end is chipped but appears to have deliberatekly thinned and snapped. The retouch has breated an angled sectioned thin tip as seen on a borer tool and it could be used in that way. It is 44.4mm long, 18.8mm wide and 7.3mm thck and weighs 5.70 grams. It is pale buff translucent flint of high quality. The long parallel blade and in particular the notching on both edges, possibly as a preliminary to breaking the flint suggests a Mesolithic date. |
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Depicted place | (County of findspot) Somerset | ||
Date | between 10000 BC and 4000 BC | ||
Accession number |
FindID: 614826 Old ref: SOM-8EB056 Filename: SOM-8EB056.JPG |
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Credit line |
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Source |
https://finds.org.uk/database/ajax/download/id/467154 Catalog: https://finds.org.uk/database/images/image/id/467154/recordtype/artefacts archive copy at the Wayback Machine Artefact: https://finds.org.uk/database/artefacts/record/id/614826 |
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Permission (Reusing this file) |
Attribution-ShareAlike License |
Licensing
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File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 15:28, 23 January 2017 | 4,608 × 2,932 (3.7 MB) | Fæ (talk | contribs) | Portable Antiquities Scheme, SOM, FindID: 614826, mesolithic, page 1619, batch count 92 |
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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 | Canon |
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Camera model | Canon EOS 350D DIGITAL |
Author | unknown |
Exposure time | 1/160 sec (0.00625) |
F-number | f/32 |
ISO speed rating | 200 |
Date and time of data generation | 09:47, 6 May 2014 |
Lens focal length | 60 mm |
Orientation | Normal |
Horizontal resolution | 240 dpi |
Vertical resolution | 240 dpi |
Software used | Adobe Photoshop CS2 Windows |
File change date and time | 15:19, 6 May 2014 |
Exposure Program | Manual |
Exif version | 2.21 |
Date and time of digitizing | 09:47, 6 May 2014 |
APEX shutter speed | 7.321928 |
APEX aperture | 10 |
APEX exposure bias | 0 |
Maximum land aperture | 2.96875 APEX (f/2.8) |
Metering mode | Partial |
Flash | Flash fired, compulsory flash firing |
Color space | Uncalibrated |
Focal plane X resolution | 3,954.233409611 |
Focal plane Y resolution | 3,958.7628865979 |
Focal plane resolution unit | inches |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Manual white balance |
Scene capture type | Standard |
Image width | 4,608 px |
Image height | 2,932 px |
Serial number of camera | 1630702606 |
Lens used | 60.0 mm |
Owner of camera | unknown |
Rating (out of 5) | 0 |
Date metadata was last modified | 16:19, 6 May 2014 |
IIM version | 2 |