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A pop-up structure carried on a back-thrust/fore-thrust couplet. The result is a hanging slice of rock. The image here shows pop-up stacking of the Cretaceous Urgonian limestone (seen in the Bornes gorge, NW French Subalps), which forms cliffs about 200m high (the view is rather foreshortened from the valley bottom). Notice that both thrusts "obey" the rules in that they repeat stratigraphy.
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| синметаморфни структури | гънкови структури | главно меню |