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Introduction to the geological zones of Austria
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Introduction to the geological zones of Austria Austria can be separated into three main geological parts: - Austria divisa est in partes tres ;-) * Alps (most parts of the Eastern Alps, northern rim of Southern Alps) * Molasse Zone and Tertiary basins in the East * Southern parts of the Bohemian Massif Alps The Alps represent an orogeny consisting of folds and thrusts, which was created by the collision of Africa and N-Europe. This collision is, of course, a slow process, which started in the Upper Jurassic (ca. 150 Ma ago) and is still in action today. As a consequence, the strata of a sea basin ("Tethys"), that had been deposited since Permian times (230 Ma), were folded and thrust on top of each other (thrust sheets or nappes). Those nappes which used to be situated in the south were thrust above the ones in the north. So the southernmost part (the...
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