DescriptionCliff of Steigerberg (rock formation, erosion).jpg
English: Fossil sea cliff at Steigerberg hill, Lower Oligocene (30 mya) coastal cliff made up of Lower Permian volcanic rocks (Kreuznach Rhyolite): Eroded paleocliff with intertidal zone (yellowish smooth rock) and supratidal zone (weatherd reddish rock above) showing two wave-cut notches (one at the mean high tide level at the top of the intertidal zone and a less pronounced one at the mean low tide level at the base of the intertidal zone). In the right lower foreground drilling marks from quarrying are visible. The left background of the image shows the sandy and gravely caprocks of the Alzey Formation. Mainz Basin, Rhineland-Palatinate, Germany[1]
Deutsch: Fossiles Kliff am Steigerberg, unter-oligozänes (30 mya) Kliff aus unterpermischem Vulkangestein (Kreuznacher Rhyolith): Erodiertes Paläokliff mit Intertidal (glatter gelblicher Fels) und Supratidal (verwitterter rötlicher Fels darüber) zusammen mit zwei Brandungshohlkehlen (eine an der mittleren Hochwassermarke direkt unterhalb des Supratidals und eine weniger stark ausgeprägte an der mittleren Niedrigwassermarke an der Basis des Intertidals). Im Bildvordergrund rechts unten sind von Steinbrucharbeiten herrührende Bohrmarken zu sehen. Im linken Bildhintergrund sieht man die sandigen und kiesigen Deckschichten der Alzey-Formation. Mainzer Becken, Rheinland-Pfalz[1]
↑ abStephane Rousse, Philippe Duringer, Karl R. G. Stapf (2012): An exceptional rocky shore preserved during Oligocene (Late Rupelian) transgression in the Upper Rhine Graben (Mainz Basin, Germany). Geological Journal, 47(4):388-408 DOI:10.1002/gj.1349
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