Sökning: "landväxter"

Hittade 5 uppsatser innehållade ordet landväxter.

1. 1. Geobiological Impacts of PalaeozoicLand Plant Evolution

   Master-uppsats, Uppsala universitet/Paleobiologi

   Författare :Camille Valette; [2021]
   Nyckelord :land plants; geobiological impacts; extinction; Palaeozoic; paleobotany; landväxter; geobiologiska effekter; utrotning; Paleozoikum; paleobotanik;

   Sammanfattning : For two centuries, questions about the origin of terrestrial plants and their impacts on the Earth systemhave occupied palaeobotanists. This essay attempts to synthesise the state of research to date, and outlineareas where major questions remain. LÄS MER

3. 2. Japanese knotweed: the "nightmare plant" haunting Scania

   Master-uppsats, Lunds universitet/Examensarbeten i biologi

   Författare :Mikael Ståhlberg; [2020]
   Nyckelord :Biology and Life Sciences;

   Sammanfattning : Invasive alien species (IAS) are one of the most important direct drivers of biodiversity loss and changes in ecosystem services. Over the last 20 years IAS are estimated to have cost the EU at least 12 billion euro per year. These costs continue to increase. LÄS MER

4. 3. Sequence stratigraphy, palynology and biostratigraphy across the Ordovician-Silurian boundary in the Röstånga-1 core, southern Sweden

   Master-uppsats, Lunds universitet/Geologiska institutionen

   Författare :Ahmed Salah Badawy; [2012]
   Nyckelord :avsättningsmiljöer; stratigrafi; Sweden; Scania; Röstånga; Silurian; Ordovician; TAI; Thermal Alteration Index; palynology; sea level changes; stratigraphy; depositional environments; havsnivåförändringar; palynologi; Ordovicium; Silur; Skåne; Sverige.; Earth and Environmental Sciences;

   Sammanfattning : 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

5. 4. The spore record of early land plants from upper Silurian strata in Klinta 1 well, Skåne, Sweden

   Master-uppsats, Lunds universitet/Geologiska institutionen

   Författare :Kristina Mehlqvist; [2009]
   Nyckelord :Silurian; spores; flora; palynology; Klinta 1 drillcore; silur; sporer; palynologi; Klinta borrkärna 1; Earth and Environmental Sciences;

   Sammanfattning : Prover från Öved-Ramsåsagruppen i Skåne från övre Silur har undersökts palynologiskt, främst med avseende på sporer från landväxter. Sedimenten består av karbonater med silisiklastiskt innehåll och paleomiljön har tolkats till ett strandnära marint ekosystem. LÄS MER

7. 5. Late Triassic and Early Jurassic palynology of the Höganäs Basin and the Ängelholm Trough, NW Scania, Sweden

   Magister-uppsats, Lunds universitet/Geologiska institutionen

   Författare :Linda M. Larsson; [2003]
   Nyckelord :Transitional interval; Pinuspollenites-Trachysporites Zone; Scania; Rhaetian; Palynology; Hettangian; Cerebropollenites macroverrucosus Zone; Helsingborg Member; Döshult Member; Earth and Environmental Sciences;

   Sammanfattning : A palynological study has been conducted on Late Triassic and Early Jurassic outcrop- and borehole sections of the Höganäs and Rya formations, NW Scania. The diverse and generally well preserved palynomorph assemblages can be divided into three miospore zones: (1) the latest Rhaetian-?Hettangian Transitional interval; (2) the Hettangian Pinuspollenites-Trachysporites Zone; and (3) the Sinemurian Cerebropollenites macroverrucosus Zone. LÄS MER