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Showing 1 to 20 of 27 for “"Paleocene-Eocene"”.

  1. A magmatic trigger for the Paleocene-Eocene Thermal Maximum?

    Dubin, Andrea R.Massachusetts Institute of Technology and Woods Hole Oceanographic Institution2015

    … of carbon into the ocean-atmosphere system. This Paleocene-Eocene Thermal Maximum (PETM) is often cited as an analogue of anthropogenic climate change. Many trigger mechanisms for the carbon release at the PETM have been proposed. Common to all scenarios is rapid release of isotopically light …

    woods-hole Repository record

  2. A magmatic trigger for the Paleocene-Eocene thermal maximum?

    Dubin, Andrea RoseMassachusetts Institute of Technology2015

    … of carbon into the ocean-atmosphere system. This Paleocene-Eocene Thermal Maximum (PETM) is often cited as an analogue of anthropogenic climate change. Many trigger mechanisms for the carbon release at the PETM have been proposed. Common to all scenarios is rapid release of isotopically light …

    mit Repository record

  3. Stratigraphy and Palaeoenvironment of the Paleocene/Eocene boundary interval in the Indus Basin, Pakistan

    Hanif, Muhammad2011

    Marine sedimentary sections across the Paleocene/Eocene (P/E) boundary interval are preserved in the Patala Formation (Upper Indus Basin) and Dungan Formation (Lower Indus Basin), Pakistan. The P/E interval of the Patala Formation is composed of limestone and shale inter-beds indicating deposition …

    plymouth Repository record

  4. Sedimentology and Stratigraphy of the Coalmont Formation, Northwestern, North Park, Colorado, U.S.A.

    Peterson, Christopher D.2013

    The Paleocene to Eocene Coalmont Formation, in the North Park portion of the Colorado Headwaters basin of north-central Colorado, preserves synorogenic strata from the Laramide orogeny. The Coalmont Formation consists of a variety of fluvial and lacustrine sedimentary facies that have not been …

    unr Repository record

  5. A stable isotope stratigraphy for the Axel Heiberg Fossil Forest and its application to Eocene climate

    Byrne, Monica C. (Monica Catherine)Massachusetts Institute of Technology2005

    The Eocene era was a warm, climatically dynamic transitional period between the Paleocene greenhouse world and the Oligocene icehouse world. This study details carbon and hydrogen isotopic and biomarker analyses of samples of lignite (bulk fossil leaves), wood, paleosol, and resinite from the …

    mit Repository record

  6. Paleogene-Early Neogene palynomorphs from the Eastern Equatorial Atlantic and Southeastern Florida, USA: Biostratigraphy and paleoenvironmental implications

    Awad, Walaa K.Missouri University of Science and Technology

    <p>"The transition from greenhouse conditions (Paleocene-Eocene Thermal Maximum, PETM) to icehouse conditions (Early Oligocene) is not well documented in tropical-subtropical regions. One hundred and five samples from Ocean Drilling Program (ODP) Site 959 (Hole 959A and Hole 959D) in the Cote …

    must-thes Repository record

  7. Inferring Extinct Reptilian Response To Global Warming: Insights From Modern Stable Isotope Ratios

    Riegler, Mitchell ScottVirginia Tech2018

    … this framework to extinct lizards from an Early Eocene (Wa4) assemblage, a key time between two major global warming events (Paleocene-Eocene Thermal Maximum and Early Eocene Climatic Optimum). I identify xenosaurid and glyptosaurine squamates and alethinophidian snakes. The xenosaurid is one of …

    vt Repository record

  8. A multi-proxy study of the Palaeocene - Eocene Thermal Maximum in northern Spain

    Manners, Hayley2014

    At the boundary between the Paleocene and Eocene epochs (ca. 56 Ma) a significant global warming event, termed the Paleocene-Eocene Thermal Maximum (PETM), occurred. Records of this event are characterised by a negative carbon isotope excursion (CIE) which has been associated with the release of …

    plymouth Repository record

  9. Carbon Cycle Trends Recorded By Organic Carbon Stable Isotopes In Paleocene Strata, Benton County, Mississippi: Implications For Chronostratigraphy Of The Porters Creek And Naheola Formations

    Gerweck, Erica2019

    The paleocene-eocene thermal maximum (petm) is one of the most studied carbon isotope excursions in earth's history. The petm occurred 55 million years ago when excess isotopically heavy carbon (c13) was added into earth's carbon cycle, resulting in ecological and environmental changes. The petm is …

    mississippi Repository record

  10. Applied palynology: Multidisciplinary case studies from Egypt, Gulf of Mexico and USA

    Zobaa, Mohamed K.Missouri University of Science and Technology2016

    … sub-basins with variable basin-fill histories. A Paleocene-Eocene age was proposed for the studied section based on palynomorphs. Recorded flora consisted primarily of Oak-Hickory-Pine woodland, with an herb/shrub understory. Palynologic analysis backed up by ¹⁴C dating of samples from New …

    must-thes Repository record

  11. Differential Thermal Isotope Analysis: A Method for the Study of Past Climates

    Walters, GregoryUniversity of Cambridge2023

    … research into climate conditions during the Paleocene-Eocene Thermal Maximum (PETM). Measurements of gypsum and clay samples demonstrate the ability of DTIA to separate out different dehydration steps for individual measurement, both for minerals with multiple water environments, and for …

    cambridge Repository record

  12. Paleoenvironment reconstruction in extreme climates using organic geochemical investigations

    Williams, Ross H. (Ross Hamilton)Massachusetts Institute of Technology2016

    … termed hyperthermals. The largest of these, the Paleocene-Eocene Thermal Maximum is perhaps the best analog to modern day anthropogenic climate change. It is paramount to understand the global effects of this event to elucidate potential changes in our near future. To further this area of …

    mit Repository record

  13. Cenozoic geology of the continental slope and rise off western Nova Scotia

    Swift, Stephen A.Massachusetts Institute of Technology and Woods Hole Oceanographic Institution1985

    … were cut during the late Maestrichtian-early Paleocene, Eocene-Oligocene, and Pleistocene. Extensions of Tertiary canyons onto the slope are poorly defined, but small Paleocene fans of interbedded chalk and mudstone on the upper rise indicate that slope canyons existed at that time. Abyssal …

    woods-hole Repository record

  14. Tertiary dinoflagellate, acritarch, and chlorophyte assemblages from the Oak Grove Core, Virginia Coastal Plain

    Witmer, Roger J.Virginia Polytechnic Institute and State University1987

    … Aquia, Marlboro Clay, and Nanjemoy Formations (Paleocene to Eocene) of the Pamunkey Group and the Calvert and Choptank Formations (Miocene) of the Chesapeake Group. The assemblages are composed of 176 dinoflagellate species and subspecies (82 genera), of which 20 species and subspecies and one …

    vt Repository record

  15. High-latitude sedimentation in response to climate variability during the Cenozoic

    Varela Valenzuela, Natalia InesVirginia Tech2024

    … a hydrothermal vent complex associated with the Paleocene-Eocene Thermal Maximum (PETM; ca. 56 Ma), a global warming event during which thousands of Gt C was released into the ocean-atmosphere on Kyr timescales. IODP Site U1568, strategically located near the hydrothermal vent complex and part of …

    vt Repository record

  16. Cenozoic deep-water agglutinated foraminifera in the North Atlantic

    Kaminski, Michael A.Massachusetts Institute of Technology and Woods Hole Oceanographic Institution1987

    … Significant faunal turnovers are observed at the Paleocene/Eocene, Ypresian/ Lutetian and Eocene/Oligocene boundaries. A reduction in diversity occurs at the Paleocene/Eocene boundary in all bathyal sections studied, and agglutinated forminifera disappear entirely from abyssal low-latitude DSDP …

    woods-hole Repository record

  17. Soil weathering under mountain pine beetle killed trees, Grand County, Colorado

    Denison, Christopher W., author, Sutton, Sally, advisor, Ridley, John, committee member, Stednick, John, committee memberColorado State University. Libraries2013

    … terrain and the study area is hosted by Paleocene - Eocene sedimentary rocks of the Coalmont Formation. Soils of Kauffman Creek are predominately inceptisols and entisols. The field site was chosen to show a range in pine beetle infestation and health conditions of pine trees on the …

    colostate Repository record

  18. Responses of a shallow-water ecosystem to the early Paleogene greenhouse environmental conditions : evolution of Larger Foraminifera and coral communities from the Northern Tethys

    Zamagni, JessicaUniversität Potsdam

    … The best documented of these events is the Paleocene-Eocene Thermal Maximum (PETM, ~55 Ma) when the magnitude of carbon addition to the oceans and atmosphere was similar to those expected for the future. This event initiated global warming, changes in hydrological cycles, biotic extinction …

    potsdam-diss Repository record

  19. La limite Paléocène-Eocène dans le Bassin de Douala Biostratigraphie et essai de reconstitution des paléoenvironnements

    Mbesse, CécileULiège - Université de Liège2013

    … du Nigeria voisin et celui contemporain du PETM (Paleocene-Eocene Thermal Maximum) dans l’Eocène basal de divers bassins nordiques passés en revue dans le travail. Sur les nonante-quatre espèces de sporomorphes identifiées, une cinquantaine de taxons a été retenue dans un objectif …

    liege Repository record

  20. La limite Paléocène-Eocène dans le Bassin de Douala Biostratigraphie et essai de reconstitution des paléoenvironnements

    Mbesse, Cecile OliveULiège - Université de Liège2013

    … du Nigeria voisin et celui contemporain du PETM (Paleocene-Eocene Thermal Maximum) dans l’Eocène basal de divers bassins nordiques passés en revue dans le travail. Sur les nonante-quatre espèces de sporomorphes identifiées, une cinquantaine de taxons a été retenue dans un objectif …

    liege Repository record

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