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Abstract

The relation between Scandinavian landforms and Cenozoic uplift events is examined by analysis of digital elevation data in a regional geological context as well as in a geomorphological process perspective. Re-exposed flat sub-Cambrian and sub-Mesozoic hilly relief aids in deciphering uplift and erosional events. The highly dissected mountains of the Northern Scandes (NS) rise maximally 1500 m above a slightly tilted lowest level continuing in the Muddus plains eastwards at 300-550m above sea level (a.s.l.). This level is correlated with the lowest, slightly warped level of the Palaeic relief at 1000 -1300 m a. s.l. of the Southern Scandes (SS), over which mountains of similar height rise. This lowest surface is thought to be the end result of Paleogene erosion to the general base level. Northern Scandinavia with the NS and the Muddus plains acted as a block that was progressively tilted to the SE, whereas the Southern Scandes experienced continuous doming, with a major uplift event of about 1000 m in Neogene time causing deep valley incision in the uplifted plateau. The South Swedish Dome emerged from its Palaeozoic and Mesozoic cover in Neogene time and still retains well-preserved re-exposed palaeosurfaces.

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