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LAPLAIGNE PERUWELZ - Service géologique de Wallonie

LAPLAIGNE PERUWELZ - Service géologique de Wallonie

LAPLAIGNE PERUWELZ - Service géologique de Wallonie

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TABLES DES MATIÈRESRésumé................................................................................ 31. Introduction ................................................................... 41.1. Etablissement <strong>de</strong> la carte ....................................... 41.2. Cadre géographique............................................... 51.3. Cadre géologique................................................... 52. Description <strong>de</strong>s formations............................................ 82.1. Le socle paléozoïque ............................................. 8Formation d’Antoing (ANT)................................. 8Groupe <strong>de</strong> la Dendre (DEN).................................. 8Formation <strong>de</strong> Lens (LEN) ..................................... 9Formation <strong>de</strong> Basècles (BAS) ............................... 10Formation <strong>de</strong>s Ecacheries (ECH) .......................... 11Formation <strong>de</strong> Thieusies (THS) .............................. 11Formation <strong>de</strong> Lives (LIV) ..................................... 11«Gran<strong>de</strong> Brèche» (GDB)....................................... 12Formation <strong>de</strong> Viesville (VIE)................................ 12Formation <strong>de</strong> Blaton (BLA) .................................. 13Formation <strong>de</strong> Gottignies (GOT) ............................ 13Groupe houiller (HOU) ......................................... 142.2. La couverture méso-cénozoïque............................ 15Formation du Hainaut (HAI)................................. 15Formations <strong>de</strong> Harchies, <strong>de</strong> Catillonet <strong>de</strong> Bracquegnies (HCBB) .................................. 16Formation <strong>de</strong> Bernissart (HCBB).......................... 16Formation du Vert Galand (VEG)......................... 18Membre <strong>de</strong> Bruyelle (BRU)............................... 18Membre <strong>de</strong> Merlin (MER) ................................. 18Formation d’Esplechin ( ESP)............................... 19Formation <strong>de</strong> Maisières (MAI).............................. 19Formation <strong>de</strong> Saint-Vaast (SVA) .......................... 19Formation <strong>de</strong> Trivières (TRI) ................................ 20Formation <strong>de</strong> Obourg (OBG) ................................ 20Formation <strong>de</strong> Hannut (HAN) ................................ 20Membre <strong>de</strong> Chercq (CHE) ................................. 20Membre <strong>de</strong> Grandglise (GRA)........................... 21Formation <strong>de</strong> Kortrijk (KOR)................................ 22Membre d’Orchies (ORC) ................................. 22Membre <strong>de</strong> Mons-en-Pévèle (MEP) .................. 22Limons (LIM)........................................................ 22Alluvions anciennes (ALA)................................... 23Alluvions mo<strong>de</strong>rnes (AMO).................................. 23Remblais (X) ......................................................... 233. Analyse structurale........................................................ 243.1. Le socle paléozoïque ............................................. 243.2. La couverture méso-cénozoïque............................ 254. Les ressources du sous-sol ............................................ 264.1. Aspects hydrogéologiques..................................... 26A- L’aquifère du calcaire carbonifère ................... 26B- Les phénomènes karstiques .............................. 2743

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