Essays about: "conodonts"

Showing result 1 - 5 of 11 essays containing the word conodonts.

  1. 1. Oolites from the Arabian platform: Archives for the aftermath of the end-Triassic mass extinction

    University essay from Lunds universitet/Geologiska institutionen

    Author : Johannes Greiff; [2021]
    Keywords : sedimentology; carbonates; geochemistry; oolites; ooids; thrombolites; microbialites; Triassic; Jurassic; Hettangian; extinction; United Arab Emirates; Wadi Ghalilah; Wadi Milaha; Earth and Environmental Sciences;

    Abstract : The end-Triassic mass extinction (ETME) which occurred around 201 Ma is known as one of “the big five” mass extinction events of the Phanerozoic eon. Its effects were most severe on marine ecosystems, resulting in a global decline of invertebrate taxa and the complete extinction of the conodonts. READ MORE

  3. 2. Carbon isotope chemostratigraphy of the Late Silurian Lau Event, Gotland, Sweden

    University essay from Lunds universitet/Geologiska institutionen

    Author : Hani Younes; [2012]
    Keywords : high-resolution correlation; conodonts; carbon isotope excursion; Gotland; extinction; Silurian; Lau Event; microbial resurgence; Earth and Environmental Sciences;

    Abstract : The positive δ13C excursion associated with the Late Silurian Lau Event (approximately 420 Ma) is recognized globally and considered to be one of the most prominent carbon isotope excursions of the Phanerozoic. Its maximum values are exceeded only by values from the Proterozoic. READ MORE

  4. 3. Maturity of kerogen, petroleum generation and the application of fossils and organic matter for paleotemperature measurements

    University essay from Lunds universitet/Geologiska institutionen

    Author : Yaser Abdullah Abdullah Al-Mashramah; [2011]
    Keywords : thermal alteration; thermal maturation; kerogen; petroleum generation; paleothermometres; vitrinite; conodonts; graptolites; palynomorphs; Earth and Environmental Sciences;

    Abstract : The origin, composition and maturity of kerogen, and its conversion to petroleum is reviewed. Various methods for estimating the maximum temperature to which kerogen and potential source rocks were subjected are also reviewed. READ MORE

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

    University essay from Lunds universitet/Geologiska institutionen

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

    Abstract : 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. READ MORE

  6. 5. Linguliform Brachiopods from the terminal Cambrain to lower Ordovician Tiñu section, Mexico

    University essay from Uppsala universitet/Paleobiologi; Uppsala universitet/Universitetsbiblioteket

    Author : Barbro Bornsäter; [2008]
    Keywords : Linguliform; Brachiopods; Acrotretid; Siphonotretid; Tiñu Formation; Cambrian; Ordovician; Linguliforma; Brachiopoder; Acrotretida; Siphonotretida; Tiñu formationen; Kambrium; Ordovicium;

    Abstract : Tiñuformationen i Oaxaca, Mexiko är den enda fossilförande enheten från undre paleozoikum mellan den Laurentiska plattformen i nordvästra Mexiko och de Gondwanska lagerföljderna i Sydamerika. Det har nyligen visats att Tiñusektionen är en koncentrerad passiv kantlagerföljd med Gondwanakaraktär. READ MORE