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Personen: Geukens, Fernand
Cambrian
80
Earth sciences & physical geography
80
Ordovician
80
Physical
80
Physique
80
Rn
80
Sciences de la terre & géographie physique
80
chemical
80
chimie
80
mathematical & earth Sciences
80
mathématiques & sciences de la terre
80
Radon
68
Caledonian
64
Stavelot-Venn Massif
56
Wallonia (Belgium)
56
Permian
52
Cretaceous
44
Hercynian
44
geological mapping
44
periglacial morphologies
44
unconformities
44
Devonian
40
Lower Devonian
40
landslides
36
Tertiary
32
Graben
28
LIDAR
24
Silurian
24
active faults
24
graben
24
Dinant Synclinorium
20
LIDAR prospection
20
active fauts
20
Amblève & Hoëgne rivers
16
Carboniferous
16
Fe ores
16
Geological maps
16
Pb
16
Zn
16
mineral water (SPA)
16
tectonic window (Theux)
16
Au
12
Geological mapping
12
Quaternary
12
Variscan (Rheno-hercynian zone)
12
gold
12
metamorphism
12
radon
12
unconformity
12
Belgium (Wallonia
8