piedmonttreppen

A piedmonttreppen or piedmont benchland{{cite encyclopedia|author-last=Harris|author-first=Stuart A. |title=Treppen concept (penck) |encyclopedia=Geomorphology|series=Encyclopedia of Earth Science|year=1968 |isbn=978-3-540-31060-0 }} is a conceived landform consisting in a succession of benches at different heights and that forms in sequence during the uplift of a geological dome. The concept was first proposed in a posthumous publication by Walther Penck in 1924.{{cite encyclopedia|last=Young|first=R.W.|editor-last=Goudie|editor-first=A.S.|editor-link=Andrew Goudie (geographer)|encyclopedia=Encyclopedia of Geomorphology|title=Escarpment|year=2004|pages=337–340}}

Penck's type area for the piedmontreppen was the Black Forest of Germany.{{cite journal |last1=Spreitzer |first1=H. |date=1951 |title=Die Piedmonttreppen in der regionalen Geomorphologie |jstor=25635740 |journal=Erdkunde |volume=5 |issue=4 |pages=294–305 |language=de }} Outside Germany the South Swedish Dome has been identified as containing a piedmonttreppen, with the uppermost and oldest surface being the Sub-Cambrian peneplain. It is followed by three surfaces, one at 300 m a.s.l., another at 200 m and then the South Småland peneplain.{{cite journal |last1=Lidmar-Bergström |first1=Karna |last2=Olvmo |first2=Mats|last3=Bonow |first3=Johan M. |author-link=Karna Lidmar-Bergström|date=2017 |title=The South Swedish Dome: a key structure for identification of peneplains and conclusions on Phanerozoic tectonics of an ancient shield |journal=GFF }} There have been attempts at describing the southern portion of the Scandinavian Mountains as having a piedmonttreppen topography made up of paleic surfaces in the uplands and a strandflat at sea level. This idea has been strongly contested by Olaf Holtedahl.{{cite journal |last1=Holtedahl |first1=Olaf |date=1965 |title=The South-Norwegian Piedmonttreppe of W. Evers |journal=Norsk Geografisk Tidsskrift |volume=20 |issue=3–4 |pages=74–84 |doi=10.1080/00291956508551831}} Later authors also stress that the Scandinavian Mountains cannot be described as a series of domes.{{cite journal|author-last=Redfied|author-first=T.F.|author-last2=Osmundsen|author-first2=P.T. |date=2013 |title=The long-term topographic response of a continent adjacent to a hyperextended margin: A case study from Scandinavia|journal=GSA Bulletin |volume=125 |issue=1 |pages=184–200 |doi=10.1130/B30691.1}}