Kaledonisch

in geology designates “kaledonisch” an earth-history era approximately 500 million years ago (mA), and/or. the zone of a spacious Gebirgsbildung, the kaledonischen Orogenese arisen at that time.

After the development of the “Urkontinents “- which united still all current north continents - began at its edges long lasting mountain formations. One Kaledoni era and the developed mountains call this time period as Kaledoniden.

The name comes from latin. - celtic name Caledonia for Scotland. Of the north of the British islands over the Orkney - and Shetlandinseln until Norway are still best received the remainders of this Gebirgsbildung (Orogenese). But also central and north Sweden, north Finland, the bear island and west Spitzbergen are kaledonischen origin.

In Central Europe (in addition, in America) the system of the “kaledonischen mountains” was over-formed by later tectonics - above all the variszische and hercynische Orogenese - partial and slid over.

Only in “Paläo Europe “(northwest, the north and parts of Northern Germany) are their rocks evident and reach in the Norwegian mountains scarcely by means of 2000 meters (“kaledonische consolidation”). Their ceilings were eroded however since its education on less than half.

Schematically 4 global mountain formations are differentiated:
Name epoch before Mill. J. large mountains part of Europe
alpidisch Tertiary period 100 - today alps, Karpaten. Neo Europe
variszisch Devonian - Permian 400 - of 280 Rhine slate mountains Meso Europe
kaledonisch Ordovizium - Devonian 510 - 410 Norway, Scotland Paläo Europe
cadomisch Präkambrium > 600 Böhmi mass (parts) Ur-Europe (Fennosarmatia)

the associated phases are also calledconsolidation “: alpidische and/or. variskische consolidation, kaledonische consolidation, and präkambrische consolidation.

Where the kaledonischen Gesteinsformationen of younger slid over became, one finds them partly than trunk mountains (Central Germany) or in the underground - like it numerous, also recent formations world-wide happens. Thus are old kaledonische (and even older) remainders in the Böhmi mass: in the north of the down-Austrian forest quarter, where there are präkambrische rocks in parts up to 800 mA and even 1000 mA - thus from the time of the supercontinent Rodinia -, or within the range of the Böhmisch Mähri height.


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