File:L'allée couverte de Tréal à Saint-Just - Ille-et-Vilaine - Septembre 2018.jpg
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Summary
[edit]DescriptionL'allée couverte de Tréal à Saint-Just - Ille-et-Vilaine - Septembre 2018.jpg |
Français : L'allée couverte de Tréal est bien connue et bien étudiée : comme pour les autres sites des landes de Cojoux, elle a été complètement fouillée puis restaurée en 1991-1992 par l'équipe dirigée par Jacques Briard et G. Leroux et tout son environnement a été passé au peigne fin…
Le monument est vraiment impressionnant car il est aussi complet qu'à son origine, ce qui est rare : même si l'effet de restauration n'est pas négligeable, on voit bien à quoi nos ancêtres pensaient... On a donc affaire à une allée couverte « classique » à entrée latérale : elle mesure 15,50 mètres de long et 1,20 m de large en moyenne. Plus concrètement, on compte 39 dalles : entre les tables et les orthostates ! Grâce aux résultats des fouilles effectuées en 1991-92, il a été possible de dater certains éléments retrouvés dans le périmètre du monument de -3500 avant J.-C. et donc typiquement du Chasséen, soit le Néolithique moyen. L'allée couverte de Tréal est dite "à entrée latérale" : on peut voir ici les deux petites dalles marquant les montants, comme pour une porte, de l'entrée du sanctuaire...English: This is a really impressive covered walkway because it is as complete as it was originally, which is rare! Even if the effect of restoration is important, we can see here clearly what our ancestors thought when they erected this monument...
We are therefore dealing with a "classic" covered walkway with side entrance: it is 15,50 meters long and 1,20 m wide on average. |
Date | |
Source | Own work |
Author | Erwan Corre |
Camera location | 47° 46′ 31.44″ N, 2° 00′ 05.76″ W | View this and other nearby images on: OpenStreetMap | 47.775400; -2.001600 |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 17:40, 28 September 2018 | 9,000 × 3,000 (21.27 MB) | Erwan Corre (talk | contribs) | User created page with UploadWizard |
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Metadata
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Camera manufacturer | SONY |
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Camera model | DSC-RX100 |
Exposure time | 1/100 sec (0.01) |
F-number | f/4.5 |
ISO speed rating | 125 |
Date and time of data generation | 11:27, 4 September 2018 |
Lens focal length | 13.42 mm |
Width | 4,864 px |
Height | 3,648 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 350 dpi |
Vertical resolution | 350 dpi |
Software used | Adobe Photoshop CS5 Macintosh |
File change date and time | 19:26, 28 September 2018 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.3 |
Date and time of digitizing | 11:27, 4 September 2018 |
Meaning of each component |
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Image compression mode | 4 |
APEX shutter speed | 6.643856 |
APEX aperture | 4.33985 |
APEX brightness | 6.53671875 |
APEX exposure bias | 0 |
Maximum land aperture | 2.96875 APEX (f/2.8) |
Metering mode | Pattern |
Light source | Unknown |
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 |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 36 mm |
Scene capture type | Standard |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Lens used | 10.4-37.1 mm f/1.8-4.9 |
Date metadata was last modified | 21:26, 28 September 2018 |
Unique ID of original document | 9221B29EC0EC93C255CE4A0A3A6FAC8A |