Sökning: "Slite Beds"

Hittade 4 uppsatser innehållade orden Slite Beds.

1. 1. Five new cephalopod species from the Silurian of Gotland

   Magister-uppsats, Lunds universitet/Geologiska institutionen

   Författare :Mattias Jacobson; [1999]
   Nyckelord :Cephalopoda; Oncocerida; Silurian; Gotland; Sweden; Patagiumoceras urnulum; Patagiumoceras crebristriatum; Pentameroceras nondum; Pentameroceras tibia; Simonssonoceras triangulum; Earth and Environmental Sciences;

   Sammanfattning : Silurian oncocerid cephalopods, collected by Gustaf Lindström’s and co-workers at the end of the 19th century on the island of Gotland are described. The material is from the Samsugns quarries and found within large thanatocoenoses in the Wenlock Slite Beds. LÄS MER

3. 2. En silurisk transgressiv karbonatlagerföljd vid S:t Olofsholms stenbrott, Gotland

   Magister-uppsats, Lunds universitet/Geologiska institutionen

   Författare :Sigfinn J. Jensen; [1999]
   Nyckelord :Carbonate sediment; crinoid limestone; biostrome; stromatoporoids; tabulate corals; transgression; Slite Beds; Silurian; Wenlockian; Gotland; Earth and Environmental Sciences;

   Sammanfattning : An investigation of carbonate sediments from the upper part of the Slite Beds on Gotland shows that the deposition has occurred in a shallow oxidated marine environments. The sediments in S:t Olofsholms Quarry consist of six different lithologies: 1) Coarse-grained crinoid rudstone, 2) Fine-grained crinoid rudstone, 3) Coarse-grained crinoid grainstone, 4) Fine-grained crinoid grainstone, 5) Floatstone 6) Boundstone The sediments consist for the most part of crinoid fragments of sand to gravel size and were deposited during high energy conditions close to a reef. LÄS MER

4. 3. High-resolution methods for study of carbonate rock : a tool for correlating the sedimentary record

   Magister-uppsats, Lunds universitet/Geologiska institutionen

   Författare :Martin Stockfors; [1998]
   Nyckelord :method study; carbonate content; organic carbon content; magnetic susceptibility; grey scale image analysis; Slite Beds; Gotland; Sweden; Earth and Environmental Sciences;

   Sammanfattning : Geophysical and geochemical methods such as investigation of calcium carbonate content, organic carbon content, magnetic susceptibility and grey scale image analysis may be utilised as correlation tools of sedimentary carbonate rocks. Low carbonate content indicates high terrestrial input into a basin and is associated with clay horizons containing high amounts of organic carbon and also high magnetic susceptibility. LÄS MER

5. 4. The conodont genus Ctenognathodus in the Silurian of Gotland, Sweden

   Magister-uppsats, Lunds universitet/Geologiska institutionen

   Författare :Caroline Strömberg; [1997]
   Nyckelord :Conodonta; Prioniodinida; Ctenognathodus; Ligonodina confluens; functional morphology; ontogeny; palaeoecology; phylogeny; Högklint Beds; Tofta Beds; Slite Beds; Klinteberg Beds; Hemse Beds; Hamra Beds; Sundre Beds; Wenlock; Ludlow; Silurian; Gotland; Sweden; Earth and Environmental Sciences;

   Sammanfattning : Seven taxa of the conodont genus Ctenognathodus (Fay, 1959) sensu Viira, 1982b in the Silurian of Gotland have been described and their occurrence mapped geographically, stratigraphically and related to facies. In addition to C. murchisoni (Pander, 1856) three new species were found; C. n. LÄS MER