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Paleogeography of the Upper Rhine Graben (URG) and the ...

ORIGINAL PAPERJean-Pierre Berger Bettina ReichenbacherDamien Becker Matthias Grimm Kirsten GrimmLaurent Picot Andrea Storni Claudius PirkenseerChristian Derer Andreas SchaeferPaleogeography of the Upper Rhine Graben (URG) and the SwissMolasse Basin (SMB) from Eocene to PlioceneReceived: 23 October 2003 / Accepted: 1 December 2004 / Published online: 25 May 2005 Springer-Verlag 2005 AbstractTwenty paleogeographic maps are presented forMiddle Eocene (Lutetian) to Late Pliocene times accord-ing to the stratigraphical data given in the companionpaper by Berger et al. this volume. Following a firstlacustrine-continental sedimentation during the MiddleEocene, two and locally three Rupelian transgressiveevents were identified with the first corresponding with theEarly Rupelian Middle Pechelbronn beds and the secondand third with the Late Rupelian Serie Grise (Fis-chschiefer and equivalents). During the Early Rupelian(Middle Pechelbronn beds), a connection between NorthSea and URG is clearly demonstrated, but a generalconnection between North Sea, URG and Paratethys, viathe Alpine sea, is proposed, but not proved, during the lateRupelian.

ORIGINAL PAPER Jean-Pierre Berger Æ Bettina Reichenbacher Damien Becker Æ Matthias Grimm Æ Kirsten Grimm Laurent Picot Æ Andrea Storni Æ Claudius Pirkenseer

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Transcription of Paleogeography of the Upper Rhine Graben (URG) and the ...

1 ORIGINAL PAPERJean-Pierre Berger Bettina ReichenbacherDamien Becker Matthias Grimm Kirsten GrimmLaurent Picot Andrea Storni Claudius PirkenseerChristian Derer Andreas SchaeferPaleogeography of the Upper Rhine Graben (URG) and the SwissMolasse Basin (SMB) from Eocene to PlioceneReceived: 23 October 2003 / Accepted: 1 December 2004 / Published online: 25 May 2005 Springer-Verlag 2005 AbstractTwenty paleogeographic maps are presented forMiddle Eocene (Lutetian) to Late Pliocene times accord-ing to the stratigraphical data given in the companionpaper by Berger et al. this volume. Following a firstlacustrine-continental sedimentation during the MiddleEocene, two and locally three Rupelian transgressiveevents were identified with the first corresponding with theEarly Rupelian Middle Pechelbronn beds and the secondand third with the Late Rupelian Serie Grise (Fis-chschiefer and equivalents). During the Early Rupelian(Middle Pechelbronn beds), a connection between NorthSea and URG is clearly demonstrated, but a generalconnection between North Sea, URG and Paratethys, viathe Alpine sea, is proposed, but not proved, during the lateRupelian.

2 Whereas in the southern URG, a major hiatusspans Early Aquitanian to Pliocene times, Early andMiddle Miocene marine, brackish and freshwater faciesoccur in the northern URG and in the Molasse Basin(OMM, OSM); however, no marine connections betweenthese basins could be demonstrated during this time. Afterthe deposition of the molasse series, a very complexdrainage pattern developed during the Late Miocene andPliocene, with a clear connection to the Bresse Grabenduring the Piacenzian (Sundgau gravels). During the LateMiocene, Pliocene and Quaternary sedimentation per-sisted in the northern URG with hardly any present drainage pattern of the Rhine river (fromAlpine area to the lower Rhine Embayment) was notestablished before the Early Graben Molasse Paleogene Neogene PaleogeographyIntroductionSeveral paleogeographic reconstructions were publishedfor the URG and the Molasse Basin during the last10 years (Berger1996; Kuhlemann and Kempf2002;Schlunegger and Pfiffner2001; Sissingh1998,2003).

3 Here, we present the results of 4 years of research car-ried out in the frame of the EUCOR-URGENT project,giving a very detailed paleogeographic frame of thestudied area for Middle Eocene to Late Pliocene maps were prepared according to the stratigraphicdata published by Berger et al. in this volume. To avoidrepetition and redundancy between the two papers,references pertaining to stratigraphic and facies data aregenerally not repeated here but can be found in thecompanion paper by Berger et al. (2004).Eocene (Maps 1 3)Map 1 LutetianLithostratigraphy (for details, see Berger et , thisvolume)Helvetic and Subalpine Molasse: Steinbach/GallensisFormation, Bu rgen Fm. and ?Klimsenhorn Fm., Berger (&) D. Becker A. Storni C. PirkenseerDepartment of Ge osciences/Ge ologie,University of Fribourg-Pe rolles,1700 Fribourg-Suisse, GermanyE-mail: ReichenbacherInstitut fu r Pala ontologie der Universita tMu nchen,Richard-Wagner-Strasse 10,80333 Mu nchen, GermanyM.

4 Grimm K. GrimmInstitut fu r Geowissenschaften der Universita t Mainz,55099 Mainz, GermanyL. PicotAustrian Academy of Sciences, Institute of limnology,Mondseestrasse 9, 5310 Mondsee-Austria, GermanyC. Derer A. SchaeferGeologisches Institut, Universita t Bonn, Nussallee 8,53115 Bonn, GermanyInt J Earth Sci (Geol Rundsch) (2005) 94: 697 710 DOI


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