Sökning: "stromatoporoids"

Hittade 1 uppsats innehållade ordet stromatoporoids.

1. 1. 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