136W0558.txt

Feuille : 136W - LIMBOURG - 435
N°SGB : 136W0558
Secteur :


X : 260197
Y : 147178

Commune : Bilstain

Description lithologique : A. Demoulin, F. Quesnel, C. Dupuis, P. Gerrienne & J. Yans
Date : 2006

Nature : sondage
roche :
Formation :
localisation :


Références :




Description :

Adresse propriétaire : M. Bauduin, 087/762435


Six motored augerholes (s1-6) have been carried out along a ~500-m-long N-S line across a
surface sloping gently southward (~1.7%) northeast of the village of Bilstain. There,
sands and clays rest on the dolostones of the Dinantian 'Formation des
dolomies de la Vesdre' (s1-3, s5-6) or the limestones and shales of the upper Famennian
'Formation de Dolhain' (s4). They showed respectively:

s4: 4.5 m brown weathering clay, slightly sandy with rare quartz gravels from 0 to 0.9 m,
then plastic with ferruginous concretions and, at the base, limestone and shale debris, resting in situ on the limestone bedrock.

Référence : publication à paraître :
Geologica Belgica:
'Cenomanian sands and clays north of the Vesdre valley: the oldest known Cretaceous deposits in eastern Belgium'
par: A. Demoulin, F. Quesnel, C. Dupuis, P. Gerrienne & J. Yans