Abstract
, B. (2009): Tidal sediments in the Upper MarineMolasse (OMM) of the Allgau area (Lower Miocene, Southwest-Germany). N. Jb. Geol. Palaont.Abh., 254 : 151163; Stuttgart.Abstract: Evidence for tidal influences in the Upper Marine Molasse (OMM) of the Allgau area(Southwest German part of the Molasse Basin) is presented. The studied sections in the EllhoferTobel ravine reveal an approximately 140 m thick succession of marine sediments. Four differentfacies types are distinguished in this succession: 1) a Glauconitic Sandstone Facies, 2) a HeterolithicFacies, 3) a Cross-Stratified Sandstone Facies and 4) a Conglomeratic Facies. These lithofaciesrepresent different near coastal and shallow marine environments. A tidal influence is indicated bythe presence of the Heterolithic Facies which contains associated epsilon cross-stratification andmegaripples (or subaquatic dunes). A general current direction from south to north is consistentdocumented by subaquatic dune foresets and the orientation of ripple foresets. If the coastalenvironment near the southern coast of the Molasse Sea had a rather simple tidal current regime thisdominant northerly current direction could be interpreted as ebb currents. Keywords: Early Miocene, Molasse Basin, Allgau, Upper Marine Molasse (OMM), tidal sediments.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.