caa a22 4500 606149627 CHVBK 20210128100535.0 cr unu---uuuuu 210128e20150401xx s 000 0 eng 10.1007/s00531-014-1126-2 doi (NATIONALLICENCE)springer-10.1007/s00531-014-1126-2 New palynology-based astronomical and revised 40Ar/39Ar ages for the Eocene maar lake of Messel (Germany) [Elektronische Daten] [Olaf Lenz, Volker Wilde, Dieter Mertz, Walter Riegel] The annually laminated oil shale from the Eocene maar lake at Messel (Federal State of Hessen, Germany) provides unique paleoenvironmental data for a time interval of ~640ka during the Paleogene greenhouse phase. As a consequence of orbitally controlled changes in the vegetation in the vicinity of the lake, the lacustrine laminites can now be astronomically tuned. Dating is based on the short eccentricity amplitude modulations of the regional pollen rain and their correlation to the astronomical La2010a/La2010d solutions in combination with a revised 40Ar/39Ar age of a basalt fragment from a lapilli tuff section below the first lacustrine sediments. Depending on different newly suggested ages for the Fish Canyon sanidine used as monitor for neutron irradiation, the age for the eruption at Messel is between 48.27±0.22 and 48.11±0.22Ma. This allows for the first time the exact correlation of a Paleogene lacustrine sequence to the marine record in Central Europe. The Messel oil shale becomes now slightly older than previously assumed and includes the Ypresian/Lutetian boundary that moves the base of the European Land Mammal Age Geiseltalian (MP 11) into the Lower Eocene. This opens a window for establishing an independent chronostratigraphic framework for Paleogene terrestrial records and their correlation to the marine realm. Furthermore, the study reveals that higher amounts of pollen from "wet” and thermophilous plants indicate less seasonal and more balanced precipitation and slightly higher temperatures during a well-expressed eccentricity minimum. Springer-Verlag Berlin Heidelberg, 2014 Paleogene nationallicence Maar lake nationallicence Palynology nationallicence 40Ar/39Ar age nationallicence Astronomical tuning nationallicence Milankovitch cycles nationallicence Lenz Olaf Angewandte Sedimentgeologie, Institut für Angewandte Geowissenschaften, Technische Universität Darmstadt, Schnittspahnstrasse 9, 64287, Darmstadt, Germany aut Wilde Volker Sektion Paläobotanik, Senckenberg Forschungsinstitut und Naturmuseum, Senckenberganlage 25, 60325, Frankfurt am Main, Germany aut Mertz Dieter Institut für Geowissenschaften, Johannes Gutenberg Universität Mainz, J.-J.-Becher-Weg 21, 55099, Mainz, Germany aut Riegel Walter Sektion Paläobotanik, Senckenberg Forschungsinstitut und Naturmuseum, Senckenberganlage 25, 60325, Frankfurt am Main, Germany aut International Journal of Earth Sciences Springer Berlin Heidelberg 104/3(2015-04-01), 873-889 1437-3254 104:3<873 2015 104 531 https://doi.org/10.1007/s00531-014-1126-2 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00531-014-1126-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lenz Olaf Angewandte Sedimentgeologie, Institut für Angewandte Geowissenschaften, Technische Universität Darmstadt, Schnittspahnstrasse 9, 64287, Darmstadt, Germany aut NATIONALLICENCE 700 1- Wilde Volker Sektion Paläobotanik, Senckenberg Forschungsinstitut und Naturmuseum, Senckenberganlage 25, 60325, Frankfurt am Main, Germany aut NATIONALLICENCE 700 1- Mertz Dieter Institut für Geowissenschaften, Johannes Gutenberg Universität Mainz, J.-J.-Becher-Weg 21, 55099, Mainz, Germany aut NATIONALLICENCE 700 1- Riegel Walter Sektion Paläobotanik, Senckenberg Forschungsinstitut und Naturmuseum, Senckenberganlage 25, 60325, Frankfurt am Main, Germany aut NATIONALLICENCE 773 0- International Journal of Earth Sciences Springer Berlin Heidelberg 104/3(2015-04-01), 873-889 1437-3254 104:3<873 2015 104 531