Lower Devonian outcrops near Martelange, southeastern Belgium, near the border with Luxembourg.
Lower Devonian of the Ardennes
During the Lower Devonian in the Ardennes, massive
amounts of detritus were deposited and as a result sedimentary rocks measure up to
eight kilometres thickness in some areas. These rocks are generally characterised
as mainly comprising shaly and sandy, terrigenous sediments. Trilobites were among
the earliest inhabitants of the waters in which these rocks were formed. Early Devonian
outcrops abound in southern Belgium, in the Neufchâteau-Eifel Synclinorium and adjacent
Ardenne and Givonne anticlinoriums; furthermore they are present in several areas
in the North. There are many rivers such as the Ourthe, Semois, and Meuse, which
meander and cut through the thick Early Devonian sediments, creating beautiful valleys
with spectacular sceneries.
|
Formation |
Age |
Area |
|
Eau Noire Formation |
Emsian-Eifelian |
Dinant Synclinorium |
|
St-Joseph Formation |
Emsian |
Dinant Synclinorium |
|
Burnot Formation |
Emsian(?-Eifelian) |
Dinant Synclinorium |
|
Wépion Formation |
Emsian |
Dinant Synclinorium |
|
Hampteau Formation |
Emsian |
Dinant Synclinorium |
|
Hierges Formation |
Emsian |
Dinant Synclinorium |
|
Chooz Formation |
Emsian |
Dinant Synclinorium |
|
Vireux Formation |
Emsian |
Dinant Synclinorium |
|
Pesche Formation |
Pragian-Emsian |
Dinant Synclinorium |
|
Acoz Formation |
Pragian |
Dinant Synclinorium; Vesdre Nappe |
|
Pèrnelle Formation |
Pragian |
Dinant Synclinorium |
|
La Roche Formation |
Pragian |
Dinant Synclinorium |
|
Jupille Formation |
Pragian-Emsian |
Dinant Synclinorium |
|
Villé Formation |
Pragian |
Dinant Synclinorium |
|
Solières Formation |
Lochkovian-Pragian |
Various |
|
Nonceveux Formation |
Lochkovian-Pragian |
Various |
|
Mirwart Formation |
Lochkovian-Pragian |
Dinant Synclinorium; Halleux Anticline |
|
Saint-Hubert Formation |
Lochkovian-Pragian |
Ardenne Synclinorium; Dinant Synclinorium |
|
Bois d'Ausse Formation |
Lochkovian-Pragian |
Dinant Synclinorium; Vesdre Nappe |
|
Fooz Formation |
Lochkovian |
Dinant Synclinorium; Vesdre Nappe |
|
Marteau Formation |
Lochkovian |
Stavelot Massif |
|
Oignies Formation |
Lochkovian |
Dinant Synclinorium |
|
Mondrepuis Formation |
Pridolian-Lochkovian |
Ardenne Synclinorium; Dinant Synclinorium |
|
Fépin Formation |
Lochkovian (locally Pridolian) |
Rocroi Massif; Stavelot Massif |