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Fauna, stratigraphy and sepositional environment of the Hettangian-Sinemurian (Early Jurassic) of Adnet (Salzburg, Austria)

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  • Archaeology
  • Earth Science

Abstract

,G ABHANDLUNGEN DER GEOLOGISCHEN BUNDESANSTALT Abh. Geol. B.-A. ISSN 0378-08641 ISBN 3-85316-007-7 Geologie ohne Grenzen Festschrift 150 Jahre Geologische Bundesanstalt Band 56/2 S. 143-271 Wien, Dezember 1999 Redaktion: Harald Lobitzer & Pavol Grecula Fauna, Stratigraphy and Depositional Environment of the Hettangian-Sinemurian (Early Jurassic) of Adnet (Salzburg, Austria) FLORIAN BÖHM, OSKAR EBLI, LEOPOLD KRYSTYN, HARALD LOBITZER, MILOS RAKÜS and MILOS SIBLIK 53 Text-Figures, 4 Tables and 30 Plates Dedicated to the Memory of Edith Khstan-Tollmann (1934-1995) Northern Calcareous Alps Adnet Liassic Stratotype Biostratigraphy Fades Foraminifera Ammonites Brachiopods Österreichische Karte 1 : 50.000 Ferromanganese Crust Blatt 94 Stable Isotopes Contents Zusammenfassung 144 Abstract 145 1. Introduction 145 1.1. Regional Setting 146 1.2. Previous Research 146 2. Stratigraphy and Sedimentology 148 2.1. Lithostratigraphic Units 148 2.1.1. Kendlbach-Formation 148 2.1.2. Adnet-Group 148 2.1.2.1. Schnöll-Formation (Hettangian) 148 2.1.2.2. Lower Adnet-Formation (Sinemurian-Carixian) 149 2.2. Description of the Outcrops 151 2.3. Interpretation of the Field Observations 159 2.4. Microfacies 164 2.4.1. Kendlbach-Formation 164 2.4.2. Adnet-Group 164 2.4.2.1. Schnöll-Formation 164 2.4.2.2. Lower Adnet-Formation 166 2.5. Nannofacies 166 2.6. Stable Isotopes 166 2.6.1. Material and Methods 166 2.6.2. Results 166 2.6.3. Discussion 167 2.7. Ferromanganese Crusts 170 2.7.1. Material and Methods 170 2.7.2. Results 170 2.7.3. Discussion 172 3. Fauna and Flora 174 3.1. Micropalaeontology 174 3.1.1. Calcareous Nannoplankton 174 3.1.2. Algae 175 Addresses of authors: Dr. FLORIAN BÖHM, GEOMAR, Forschungszentrum für Marine Geowissenschaften, Wischhofstr. 1-3, Gebäude 4, D-24148 Kiel. Dr. OSKAR EBLI, Universität München, Institut für Paläontologie und historische Geologie, Richard Wagner Str. 10, D-80333 München. Univ.-Prof. Dr. LEOPOLD KRYSTYN,

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