Sökning: "Llandovery"
Hittade 5 uppsatser innehållade ordet Llandovery.
1. Sequence stratigraphy, palynology and biostratigraphy across the Ordovician-Silurian boundary in the Röstånga-1 core, southern Sweden
Master-uppsats, Lunds universitet/Geologiska institutionenSammanfattning : A multiproxy study on sedimentary rocks spanning the Ordovician-Silurian boundary has been performed on material from the Röstånga-1 core, with the aims to improve the biostratigraphical and sedimentological framework and to interpret the depositional environment during this interval in Earth’s history. The sedimentary succession in the Röstånga-1 core is developed in the Scanian Lithofacies Belt and is considered an excellent upper Middle Ordovician-Lower Silurian reference section for southernmost Sweden. LÄS MER
2. A Lower Silurian (Llandoverian) halysitid fauna from the Berge Limestone Formation, Norderön, Jämtland, central Sweden
Magister-uppsats, Lunds universitet/Geologiska institutionenSammanfattning : Halysitid corals from the Llandoverian (Early Silurian) Berge Limestone Formation in Jämtland, central Sweden, are described. The investigation of the halysitid corals was done on material derived from the Norderön Island in Lake Storsjön, central Sweden. LÄS MER
3. Silurian graptolites from Bohemia, Czech Republic
Magister-uppsats, Lunds universitet/Geologiska institutionenSammanfattning : The only relatively undisturbed Ordovician to Middle Devonian sequence in the Bohemian Massif is preserved in the central parts of the Prague Basin. This part stretches c. 35 km from Prague in the north towards Zelkovice in the southwest. During Ordovician and Silurian times this area is thought to have been a part of the northern Gondwana margin. LÄS MER
4. Lower Silurian polychaetaspid and ramphoprionid polychaetes from Gotland : aspects on taxonomy and palaeoecology
Magister-uppsats, Lunds universitet/Geologiska institutionenSammanfattning : The Silurian strata of Gotland yield a wide variety of polychaete jaws. The investigated polychaetes include the family Polychaetaspidae with the two genera Polychaetaspis and Kozlowskiprion, and the monotypic family Ramphoprionidae with the genus Ramphoprion. LÄS MER
5. Silurian conulariids from the Lower Visby Beds on Gotland
Magister-uppsats, Lunds universitet/Geologiska institutionenSammanfattning : The Silurian conulariid fauna in the Lower Visby Beds (uppermost Llandovery to lowermost Wenlock) on Gotland includes seven species: Ctenoconularia monile Lindström 1884, Ctenoconularia sp. a, Ctenoconularia sp. b, Conularina sp. a, Conularia scalaris Holm 1893, Metaconularia aspersa Lindström 1884 and Metaconularia sp. LÄS MER