Essays about: "echinoderms"

Found 4 essays containing the word echinoderms.

  1. 1. Microplastics in the Oresund Region of the Baltic Sea - sources and effects

    University essay from Lunds universitet/Miljövetenskaplig utbildning

    Author : Simon Bystedt; [2018]
    Keywords : Microplastic; microbeads; source; effects; wastewater; review; baltic; agriculture; sludge; Earth and Environmental Sciences;

    Abstract : Plastic production is only increasing, and it‟s not showing any signs of slowing down. Microplastics are particles smaller than 5 mm, either produced intentionally, or created from items being withered into small particles. READ MORE

  3. 2. Microscopic echinoderm remains from the Darriwilian (Middle Ordovician) of Västergötland, Sweden - faunal composition and applicability as environmental proxies

    University essay from Lunds universitet/Geologiska institutionen

    Author : Christoffer Kall; [2014]
    Keywords : holenkalksten; lannakalksten; ordovicium; mikroskopisk; echinodermer; sweden; täljsten; echinoderms; microscopic; proxy; ordovician; darriwilian; kunda; volkhov; baltoscandia; lanna limestone; holen limestone; hällekis; Earth and Environmental Sciences;

    Abstract : Mikroskopiska echinodermfossil har undersökts ur prover från täljstensintervallet och intillig-gande delar av ’lanna’- och ’holenkalkstenen’ i Hällekis stenbrott, Västergötland. Den undersökta sektionen är från översta volkhov och mellersta kunda, darriwilian (mellanordovicium). READ MORE

  4. 3. From red to grey and back again : a detailed study of the lower Kundan (Middle Ordovician) 'Täljsten' interval and its enclosing strata in Västergötland, Sweden

    University essay from Lunds universitet/Geologiska institutionen

    Author : Anders Lindskog; [2010]
    Keywords : täljsten; lithology; faunal changes; Lanna Limestone; Holen Limestone; Kinnekulle; Hällekis; Thorsberg; Ordovician; Sweden; lannakalkstenen; holenkalkstenen; mellanordovicium; Sverige; Earth and Environmental Sciences;

    Abstract : Lithologic and faunal characteristics of the anomalous lower Kundan (Darriwilian, Middle Ordovician) 'Täljsten' limestone interval and its enclosing strata have been studied at Kinnekulle (Västergötland, south-central Sweden). A 2.6 m thick rock succession has been sampled, resulting in thin-sections and acid-insoluble residues. READ MORE

  5. 4. Phosphatized echinoderm remains from upper Lower Ordovician strata of northern Öland, Sweden : preservation, taxonomy and evolution

    University essay from Lunds universitet/Geologiska institutionen

    Author : Magnus Svensson; [1999]
    Keywords : Echinodermata; Lower Ordovician; phosphatization; Gillberga; Öland; Sweden; stereom; Stylophora; Asterozoa; Crinozoa; Echinozoa; Cyclocystoidiea; Palaeozoic fauna; Earth and Environmental Sciences;

    Abstract : Phosphatization of late Early Ordovician echinoderm fragments from N Öland has resulted in excellent preservation of the echinoderm stereom ultra structure. The stereom investigated shows a close relationship to different types found in recent echinoderms. READ MORE