Chemical and ecological evolution of the Miocene Ries impact crater lake, Germany: A reinterpretation based on the Enkingen (SUBO 18) drill core
2013; Geological Society of America; Volume: 125; Issue: 7-8 Linguagem: Inglês
10.1130/b30731.1
ISSN1943-2674
AutoresGernot Arp, Martin Blumenberg, Bent Hansen, Dietmar Jung, Claudia Kolepka, O. K. Lenz, Nicole Nolte, Klaus Poschlod, A. Reimer, Volker Thiel,
Tópico(s)Paleontology and Stratigraphy of Fossils
ResumoResearch Article| July 01, 2013 Chemical and ecological evolution of the Miocene Ries impact crater lake, Germany: A reinterpretation based on the Enkingen (SUBO 18) drill core Gernot Arp; Gernot Arp † 1Georg-August-Universität Göttingen, Geowissenschaftliches Zentrum, Goldschmidtstrasse 3, 37077 Göttingen, Germany †Corresponding author e-mail address: garp@gwdg.de. E-mail addresses: Blumenberg—mblumen@gwdg.de; Hansen—bhansen@gwdg.de; Jung—dietmar.jung@lfu.bayern.de; Kolepka—claudia.kolepka@web.de; Lenz—lenz@geo.tu-darmstadt.de; Nolte—nnolte1@gwdg.de; Poschlod—klaus.poschlod@lfu.bayern.de; Reimer—areimer@gwdg.de; Thiel—vthiel@gwdg.de Search for other works by this author on: GSW Google Scholar Martin Blumenberg; Martin Blumenberg † 1Georg-August-Universität Göttingen, Geowissenschaftliches Zentrum, Goldschmidtstrasse 3, 37077 Göttingen, Germany †Corresponding author e-mail address: garp@gwdg.de. E-mail addresses: Blumenberg—mblumen@gwdg.de; Hansen—bhansen@gwdg.de; Jung—dietmar.jung@lfu.bayern.de; Kolepka—claudia.kolepka@web.de; Lenz—lenz@geo.tu-darmstadt.de; Nolte—nnolte1@gwdg.de; Poschlod—klaus.poschlod@lfu.bayern.de; Reimer—areimer@gwdg.de; Thiel—vthiel@gwdg.de Search for other works by this author on: GSW Google Scholar Bent T. Hansen; Bent T. Hansen † 1Georg-August-Universität Göttingen, Geowissenschaftliches Zentrum, Goldschmidtstrasse 3, 37077 Göttingen, Germany †Corresponding author e-mail address: garp@gwdg.de. E-mail addresses: Blumenberg—mblumen@gwdg.de; Hansen—bhansen@gwdg.de; Jung—dietmar.jung@lfu.bayern.de; Kolepka—claudia.kolepka@web.de; Lenz—lenz@geo.tu-darmstadt.de; Nolte—nnolte1@gwdg.de; Poschlod—klaus.poschlod@lfu.bayern.de; Reimer—areimer@gwdg.de; Thiel—vthiel@gwdg.de Search for other works by this author on: GSW Google Scholar Dietmar Jung; Dietmar Jung † 2Bayerisches Landesamt für Umwelt, Geologischer Dienst, Hans-Högn-Straße 12, 95030 Hof/Saale, Germany †Corresponding author e-mail address: garp@gwdg.de. E-mail addresses: Blumenberg—mblumen@gwdg.de; Hansen—bhansen@gwdg.de; Jung—dietmar.jung@lfu.bayern.de; Kolepka—claudia.kolepka@web.de; Lenz—lenz@geo.tu-darmstadt.de; Nolte—nnolte1@gwdg.de; Poschlod—klaus.poschlod@lfu.bayern.de; Reimer—areimer@gwdg.de; Thiel—vthiel@gwdg.de Search for other works by this author on: GSW Google Scholar Claudia Kolepka; Claudia Kolepka † 1Georg-August-Universität Göttingen, Geowissenschaftliches Zentrum, Goldschmidtstrasse 3, 37077 Göttingen, Germany †Corresponding author e-mail address: garp@gwdg.de. E-mail addresses: Blumenberg—mblumen@gwdg.de; Hansen—bhansen@gwdg.de; Jung—dietmar.jung@lfu.bayern.de; Kolepka—claudia.kolepka@web.de; Lenz—lenz@geo.tu-darmstadt.de; Nolte—nnolte1@gwdg.de; Poschlod—klaus.poschlod@lfu.bayern.de; Reimer—areimer@gwdg.de; Thiel—vthiel@gwdg.de Search for other works by this author on: GSW Google Scholar Olaf Lenz; Olaf Lenz 3Technische Universität Darmstadt, Institut für Angewandte Geowissenschaften, Angewandte Sedimentgeologie, Schnittspahnstrasse 9, 64287 Darmstadt, Germany Search for other works by this author on: GSW Google Scholar Nicole Nolte; Nicole Nolte † 1Georg-August-Universität Göttingen, Geowissenschaftliches Zentrum, Goldschmidtstrasse 3, 37077 Göttingen, Germany †Corresponding author e-mail address: garp@gwdg.de. E-mail addresses: Blumenberg—mblumen@gwdg.de; Hansen—bhansen@gwdg.de; Jung—dietmar.jung@lfu.bayern.de; Kolepka—claudia.kolepka@web.de; Lenz—lenz@geo.tu-darmstadt.de; Nolte—nnolte1@gwdg.de; Poschlod—klaus.poschlod@lfu.bayern.de; Reimer—areimer@gwdg.de; Thiel—vthiel@gwdg.de Search for other works by this author on: GSW Google Scholar Klaus Poschlod; Klaus Poschlod † 4Bayerisches Landesamt für Umwelt, Geologischer Dienst, Haunstetterstrasse 112, 86161 Augsburg, Germany †Corresponding author e-mail address: garp@gwdg.de. E-mail addresses: Blumenberg—mblumen@gwdg.de; Hansen—bhansen@gwdg.de; Jung—dietmar.jung@lfu.bayern.de; Kolepka—claudia.kolepka@web.de; Lenz—lenz@geo.tu-darmstadt.de; Nolte—nnolte1@gwdg.de; Poschlod—klaus.poschlod@lfu.bayern.de; Reimer—areimer@gwdg.de; Thiel—vthiel@gwdg.de Search for other works by this author on: GSW Google Scholar Andreas Reimer; Andreas Reimer † 1Georg-August-Universität Göttingen, Geowissenschaftliches Zentrum, Goldschmidtstrasse 3, 37077 Göttingen, Germany †Corresponding author e-mail address: garp@gwdg.de. E-mail addresses: Blumenberg—mblumen@gwdg.de; Hansen—bhansen@gwdg.de; Jung—dietmar.jung@lfu.bayern.de; Kolepka—claudia.kolepka@web.de; Lenz—lenz@geo.tu-darmstadt.de; Nolte—nnolte1@gwdg.de; Poschlod—klaus.poschlod@lfu.bayern.de; Reimer—areimer@gwdg.de; Thiel—vthiel@gwdg.de Search for other works by this author on: GSW Google Scholar Volker Thiel Volker Thiel † 1Georg-August-Universität Göttingen, Geowissenschaftliches Zentrum, Goldschmidtstrasse 3, 37077 Göttingen, Germany †Corresponding author e-mail address: garp@gwdg.de. E-mail addresses: Blumenberg—mblumen@gwdg.de; Hansen—bhansen@gwdg.de; Jung—dietmar.jung@lfu.bayern.de; Kolepka—claudia.kolepka@web.de; Lenz—lenz@geo.tu-darmstadt.de; Nolte—nnolte1@gwdg.de; Poschlod—klaus.poschlod@lfu.bayern.de; Reimer—areimer@gwdg.de; Thiel—vthiel@gwdg.de Search for other works by this author on: GSW Google Scholar Author and Article Information Gernot Arp † 1Georg-August-Universität Göttingen, Geowissenschaftliches Zentrum, Goldschmidtstrasse 3, 37077 Göttingen, Germany Martin Blumenberg † 1Georg-August-Universität Göttingen, Geowissenschaftliches Zentrum, Goldschmidtstrasse 3, 37077 Göttingen, Germany Bent T. Hansen † 1Georg-August-Universität Göttingen, Geowissenschaftliches Zentrum, Goldschmidtstrasse 3, 37077 Göttingen, Germany Dietmar Jung † 2Bayerisches Landesamt für Umwelt, Geologischer Dienst, Hans-Högn-Straße 12, 95030 Hof/Saale, Germany Claudia Kolepka † 1Georg-August-Universität Göttingen, Geowissenschaftliches Zentrum, Goldschmidtstrasse 3, 37077 Göttingen, Germany Olaf Lenz 3Technische Universität Darmstadt, Institut für Angewandte Geowissenschaften, Angewandte Sedimentgeologie, Schnittspahnstrasse 9, 64287 Darmstadt, Germany Nicole Nolte † 1Georg-August-Universität Göttingen, Geowissenschaftliches Zentrum, Goldschmidtstrasse 3, 37077 Göttingen, Germany Klaus Poschlod † 4Bayerisches Landesamt für Umwelt, Geologischer Dienst, Haunstetterstrasse 112, 86161 Augsburg, Germany Andreas Reimer † 1Georg-August-Universität Göttingen, Geowissenschaftliches Zentrum, Goldschmidtstrasse 3, 37077 Göttingen, Germany Volker Thiel † 1Georg-August-Universität Göttingen, Geowissenschaftliches Zentrum, Goldschmidtstrasse 3, 37077 Göttingen, Germany †Corresponding author e-mail address: garp@gwdg.de. E-mail addresses: Blumenberg—mblumen@gwdg.de; Hansen—bhansen@gwdg.de; Jung—dietmar.jung@lfu.bayern.de; Kolepka—claudia.kolepka@web.de; Lenz—lenz@geo.tu-darmstadt.de; Nolte—nnolte1@gwdg.de; Poschlod—klaus.poschlod@lfu.bayern.de; Reimer—areimer@gwdg.de; Thiel—vthiel@gwdg.de Publisher: Geological Society of America Received: 12 May 2012 Revision Received: 03 Dec 2012 Accepted: 04 Dec 2012 First Online: 08 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 © 2013 Geological Society of America GSA Bulletin (2013) 125 (7-8): 1125–1145. https://doi.org/10.1130/B30731.1 Article history Received: 12 May 2012 Revision Received: 03 Dec 2012 Accepted: 04 Dec 2012 First Online: 08 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Gernot Arp, Martin Blumenberg, Bent T. Hansen, Dietmar Jung, Claudia Kolepka, Olaf Lenz, Nicole Nolte, Klaus Poschlod, Andreas Reimer, Volker Thiel; Chemical and ecological evolution of the Miocene Ries impact crater lake, Germany: A reinterpretation based on the Enkingen (SUBO 18) drill core. GSA Bulletin 2013;; 125 (7-8): 1125–1145. doi: https://doi.org/10.1130/B30731.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract Scientific drilling conducted at the inner slope of the Miocene central Ries impact crater recovered a partial section of crater lake sediments. Four sequences were recovered, composed of suevite-derived sandstones, thin lignite seams, bituminous shales, and marlstones to claystones. These flooding-evaporation sequences reflect the impact of short-term climatic fluctuations on a hydrologically closed basin. The superimposed trend from sequences rich in bituminous shales in the lower parts of the section to sequences dominated by organic-poor claystones and intercalated lignites in the upper parts of the section resembles that of the 300-m-thick central crater basin succession, which has previously been considered to reflect a climate-controlled development from an alkaline saline lake to a freshwater lake with temporary coal swamps. In the sediment core of Enkingen, however, the change from bituminous shales to organic-poor claystones with intercalated lignites is associated with a general increase in salinity, as indicated by (1) palynomorphs, (2) increase in δ13C of the lipid biomarker archaeol (bis-O-phytanylglycerol), and (3) the occurrence of 13C-enriched C20/C25-archaeol (O-phytanyl-O-sesterterpanylglycerol) specific to halophilic Archaea. In addition, the unidirectional trend in 87Sr/86Sr of carbonates, declining from ratios of Variscan basement rocks toward marine ratios, indicates a change from (1) weathering of crystalline rocks and suevite to (2) ejected Jurassic sediments (Bunte Breccia) in the catchment area as the major source of ion influx to the lake. From that trend, a change in lake water composition and a general increase in ion concentrations are inferred. These new results can be applied to a reassessment of major parts of the lacustrine succession of the Ries crater. We use these data to propose a new hypothetical model for the chemical and ecological evolution of the Ries crater lake: (1) After the establishment of a stratified brackish eutrophic soda lake due to silicate weathering and evaporation, the increasing influx of waters from the Bunte Breccia carbonate and authigenic silicate precipitation led to a mesotrophic halite lake with marine-like ion ratios and concentrations. (2) Further increase in ions, among them Mg2+ and Sr2+, resulted in hypersaline conditions with gypsum precipitation, low primary production, and phreatic Sr-rich dolomitization in marginal carbonates. (3) The final, sudden change to oligotrophic freshwater conditions is explained by the formation of an outlet late in the lake history. We conclude that the chemical and ecological evolution of the Ries lake therefore appears to have been mainly controlled by the weathering history of the catchment area, with climate fluctuations causing superimposed cycles. Similarly, changes in terrestrial palynomorph associations may at least partly reflect a change in soil types in the catchment area, from fertile, moist soils on suevite to dry karst soils and soils on Bunte Breccia. These interpretations imply that the initial suevite blanket of the Ries crater was much more continuous and widespread than previously assumed. 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