In 815 Emperor Louis the Pious ( 778 840 ), son of Charlemagne, was hunting in the Hercynian Forest.
32.
The geology consists of Hercynian granite with shallow podzolic soils on the higher ground and deeper sandy soils on the lower ground.
33.
This filled with the products of erosion in the Hercynian mountains and the contemporaneously uplifted London-Brabant Massif to the north.
34.
The Rheic Ocean or Proto-Tethys Ocean was eliminated during the Hercynian / Variscan orogeny, and the Pangea supercontinent formed.
35.
They were formed during the Caledonian orogeny of the Silurian period and then rejuvenated in the Hercynian orogeny of the Upper Carboniferous period.
36.
This was described as being within the Hercynian forest and was possibly in the region of modern Bohemia, although this is not certain.
37.
To the Romans of the Republic, the forest was as much feared as the trackless Hercynian Forest would be when they encountered that.
38.
With the beginning of the Cenozoic era, some 70 million years ago, the process of erosion of the Hercynian mountain ranges changed.
39.
The Zonguldak basin was tectonically active during the late Paleozoic and this strongly influenced its structural and burial history due to the Hercynian orogeny.
40.
This intracontinental basin that has been subsided since the Permian period was formed from the Hercynian foreland basins and accumulated sediments of the Mesozoic era.
