Search for dissertations about: "sea shells"

Showing result 1 - 5 of 6 swedish dissertations containing the words sea shells.

  1. 1. Post-Glacial History of Sea-Level and Environmental Change in the Southern Baltic Sea

    Author : Marloes Kortekaas; Kvartärgeologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; kartografi; klimatologi; Geofysik; fysisk oceanografi; physical oceanography; meteorology; Sedimentologi; Stratigrafi; Stratigraphy; Baltic Sea; geokemi; Petrologi; mineralogi; geochemistry; mineralogy; Petrology; greigite; mineral magnetics; sea-level changes; Holocene; Littorina transgression; geomorphology; pedology; cartography; climatology; meteorologi; Geophysics; Sedimentology; Optically Stimulated Luminescence OSL ; Fysisk geografi; geomorfologi; marklära; Physical geography;

    Abstract : A new palaeoenvironmental record of the post-glacial history of the southern Baltic Sea (~14 ka to present) is presented. During this period, large water level and salinity changes occurred in the Baltic Basin due to opening and closing of connections to the North Atlantic. READ MORE

  2. 2. Molluscs, Environment and Man - A Bioarchaeological Approach in Sweden

    Author : Birgitta M. Johansson; Birgit Arrhenius; Urve Miller; David S. Reese; Stockholms universitet; []
    Keywords : HUMANITIES; HUMANIORA; HUMANIORA; HUMANITIES; molluscs; role of shells; shell use; bioarchaeology; subfossil shells; environmental indicator; molluscs as food; personal ornaments; ethnography; Björkö-Birka.; Archaeology subjects; Arkeologiämnen;

    Abstract : The thesis aims to examine the role and use of molluscs in Swedish prehistory, in chorological and chronological aspects. Molluscs live in the sea, fresh water and on land. The Swedish mollusc fauna contains 623 taxa: 417 marine, 85 limnic and 121 terrestrial species. READ MORE

  3. 3. Tracking environmental changes of the Baltic Sea coastal zone since mid-Holocene

    Author : Wenxin Ning; Centrum för miljö- och klimatvetenskap (CEC); []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : In this thesis, I used two coastal sediment sequences from SE Sweden to study how Baltic Sea coastal environment has changed since the mid-Holocene. The results show the coastal environment has been influenced by multi-stressors, such as climate change, shoreline regression and anthropogenic activities. READ MORE

  4. 4. Seascape Dialogues : Human-sea interaction in the Aegean from Late Neolithic to Late Bronze Age

    Author : Christopher Nuttall; Michael Lindblom; Gunnel Ekroth; Matthew Haysom; Uppsala universitet; []
    Keywords : HUMANITIES; HUMANIORA; HUMANITIES; HUMANIORA; HUMANIORA; HUMANIORA; HUMANITIES; HUMANITIES; Seascapes; Aegean prehistory; Greece; material culture; Classical Archaeology and Ancient History; Antikens kultur och samhällsliv;

    Abstract : This thesis examines human-sea interaction based on embodied and embedded action in the littoral and island regions of the Aegean from Late Neolithic (4800 BCE) to the end of Late Bronze Age I (1600 BCE). Fundamental to this approach is the concept of seascapes, defined here as a place or agent created by a human mind set. READ MORE

  5. 5. Two-Stage Conversion of Land and Marine Biomass for Biogas and Biohydrogen Production

    Author : Valentine Nkemka; Bioteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; steam pretreatment; dry digestion; biogas; biohydrogen; Caldicellulosiruptor saccharolyticus; cadmium; anaerobic digestion;

    Abstract : The replacement of fossil fuels by renewable fuels such as biogas and biohydrogen will require efficient and economically competitive process technologies together with new kinds of biomass. A two-stage system for biogas production has several advantages over the widely used one-stage continuous stirred tank reactor (CSTR). READ MORE