136W0559.txt

Feuille : 136W - LIMBOURG - 435
N°SGB : 136W0559
Secteur :


X : 260096
Y : 147381

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:

s5 : 3.8 m of weathered material overlying the dolomitic bedrock, from top to bottom, 3.1 m slightly sandy
beige clay with a few ferruginous concretions, then 0.7 m chocolate brown dolomitic fine sand.

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