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Earth sciences & physical geography
219
Physical
219
Physique
219
Sciences de la terre & géographie physique
219
chemical
219
chimie
219
mathematical & earth Sciences
219
mathématiques & sciences de la terre
219
Frasnian
159
Famennian
150
Givetian
150
mud mounds
150
Belgium
135
Devonian limestones
130
Geological map
130
Wallonia
115
Eifelian
90
red marble
80
Paleozoic
70
Red marble
60
Lower Devonian
55
Mud mounds
35
Tournaisian
30
Visean
30
geological map
30
Belgium (Wallonia)
25
Dînant synclinorium
25
Pb
25
Zn
25
crinoids
24
sponges
24
stromatactis
24
Carboniferous
20
Emsian
20
Famennian corals
20
Lower Famennian
20
Momignies
20
Namurian
20
Séloignes
20
Wallonia (Belgium)
20
iron ore
20
limestones
20
strike-slip
20
Belgian Famennian
16
Souverain-Pré Formation
16
Baculella
15
Caledonian
15
F
15
Hercynian
15
Ordovician
15