File:LimestonePierreCalcaireGéliveVauban3.jpg
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English: Down on the left : Cryofracture a rubble limestone. It was a rectangular stone that was extracted from the inner part of a fortification built by Vauban (Citadelle Vauban de Lille). This stone, probably taken from a "Catiche" near Lille was exposed to air for a period of freezing. The disintegration occurred in a few days. It is a very accelerated form of cryoclastic Weathering (fragmented rock by hard frost).
Français : En bas à gauche : cryofracturation d'un moellon de pierre calcaire. Il s'agit d'une pierre rectangulaire, qui a été extraite de la partie interne d'une fortification construite par Vauban (Citadelle Vauban de Lille). Cette pierre, probablement extraite d'une "catiche" proche de Lille a été exposée à l'air durant une période de gel. Le délitement s'est produit en quelques jours. C'est une forme très accélérée de la Cryoclastie(fragmentation de rochesdures par le gel) |
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| Source | Own work |
| Author | Lamiot |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 11:02, 18 January 2011 | | 2,159 × 2,855 (1.16 MB) | Lamiot (talk | contribs) | {{Information |Description={{en|1=Down on the left : Cryofracture a rubble limestone. It was a rectangular stone that was extracted from the inner part of a fortification built by Vauban (Citadelle Vauban de Lille). This |
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