Search for dissertations about: "Fossil"

Showing result 6 - 10 of 1047 swedish dissertations containing the word Fossil.

  2. 6. Holocene Climate in Central and Southern Sweden : Quantitative Reconstructions from Fossil Data

    Author : Karin Antonsson; Keith Bennett; Heikki Seppä; Andy Lotter; Uppsala universitet; []
    Keywords : Quaternary geology; pollen analysis; climate reconstructions; transfer functions; vegetation dynamics; Sweden; Kvartärgeologi;

    Abstract : In quantitative palaeoecology modern species-environmental relationships can be statistically modelled, and recent development has made the calibration models more statistically robust. These models are used to transform fossil assemblages to quantitative estimates of past environmental conditions. READ MORE

  4. 7. Evolutionary Progression of the Iconic Australasian Kangaroos, Rat-Kangaroos, and their Fossil Relatives (Marsupialia: Macropodiformes)

    Author : Wendy den Boer; Benjamin Kear; Christine Janis; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; macropodiforms; kangaroos; rat-kangaroos; fossil ancestors; post-cranial; eco-morphology; systematic; phylogeny; Earth Science with specialization in Historical Geology and Palaeontology; Geovetenskap med inriktning mot historisk geologi och paleontologi;

    Abstract : The exceptionally diverse macropodiform’s (kangaroos, rat-kangaroos and their fossil allies) currently have a fossil record that spans from the late Oligocene to the Holocene with an Australasian widespread fossil occurence. The origins of the macropodiforms are believed to have been during the Eocene possibly having split from the Phalangeridae. READ MORE

  5. 8. Environmental records of carbonaceous fly-ash particles from fossil-fuel combustion

    Author : Maria Wik; Lars Ericson; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Carbonaceous particles; soot; anthropogenic particles; oil and coal combustion; fossil fuel combustion; lake sediments; lake acidification; forest soils; historical monitoring;

    Abstract : Fossil fuel combustion produces fly-ash particles that are released into the atmosphere and deposited in the environment. A particularly characteristic kind of fly-ash is spheroidal carbonaceous particles. They are composed of an amorphous carbon matrix in which other elements are dispersed. READ MORE

  6. 9. Fossil Capital : The Rise of Steam-Power in the British Cotton Industry, c. 1825-1848, and the Roots of Global Warming

    Author : Andreas Malm; Humanekologi; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Fossil economy; steam-power; water-power; cotton industry; Britain; capital accumulation; global warming;

    Abstract : The more we know about the catastrophic implications of climate change, the more fossil fuels are burnt in the world. How did we get caught up in this mess? This thesis returns to a crucial moment in the emergence of the fossil economy: the rise of steam-power. READ MORE

  7. 10. Decoding the fossil record of early lophophorates : Systematics and phylogeny of problematic Cambrian Lophotrochozoa

    Author : Aodhán D. Butler; Michael Streng; Lars E. Holmer; Russell Garwood; Maggie Cusack; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Brachiopoda; Chengjiang; Lagerstätte; Cambrian Explosion; palaeobiology; stem-group; entoproct; phoronid; tommotiid; exceptional preservation; Earth Science with specialization in Historical Geology and Palaeontology; Geovetenskap med inriktning mot historisk geologi och paleontologi;

    Abstract : The evolutionary origins of animal phyla are intimately linked with the Cambrian explosion, a period of radical ecological and evolutionary innovation that begins approximately 540 Mya and continues for some 20 million years, during which most major animal groups appear. Lophotrochozoa, a major group of protostome animals that includes molluscs, annelids and brachiopods, represent a significant component of the oldest known fossil records of biomineralised animals, as disclosed by the enigmatic ‘small shelly fossil’ faunas of the early Cambrian. READ MORE