Essays about: "sedimentära strukturer"

Found 5 essays containing the words sedimentära strukturer.

  1. 1. Sedimentary Factories and Ecosystem Change in the Triassic-Jurassic Boundary Interval : Insights from the Skåne Area (Southern Sweden)

    University essay from Uppsala universitet/Paleobiologi

    Author : Gustav Nesset Mattsson; [2021]
    Keywords : CAMP; microbial structures; End-Triassic extinction event; sedimentary structures; MISS; Triassic-Jurassic boundary; CAMP; mikrobiella strukturer; Trias-jura-utdöendet; sedimentära strukturer; MISS; Trias- juragränsen;

    Abstract : The End-Triassic Extinction (ETE) has long remained one of the lesser known among the so-called “Big Five”. There exist several hypotheses regarding the probable cause of this extinction, which can mainly be divided into  events of  a decline in the rate of diversification  in the late Triassic contra a sudden and significant extinction event. READ MORE

  3. 2. Amphibolites, structures and metamorphism on Flekkerøy, south Norway

    University essay from Lunds universitet/Geologiska institutionen

    Author : Ina Vang; [2011]
    Keywords : amphibolite; structures; metamorphism; bedrock; Flekkerøy; southern Norway; Kristiansand; amfibolit; strukturer; metamorfos; berggrund; södra Norge; Earth and Environmental Sciences;

    Abstract : The island of Flekkerøy outside Kristiansand, southern Norway, consists of meta-greywacke, amphibolitic gneiss, granitic gneiss, tonalitic gneiss, hornblenditic mafite, pegmatite and metadolerite. The oldest rocks were probably formed around 1.5 Ga in an arc environment. During the Sveconorwegian orogeny, 1. READ MORE

  4. 3. Internal structures in detrital zircons from Hamrånge: a study of cathodoluminescence and back-scattered electron images

    University essay from Lunds universitet/Geologiska institutionen

    Author : Karolina Bjärnborg; [2008]
    Keywords : zircons; internal structures; BSE; CL; Hamrånge; zirkoner; inre strukturer; zonering; metamiktisering; Earth and Environmental Sciences;

    Abstract : Syftet med denna studie var att extrahera och undersöka de inre strukturerna hos zirkoner från skifferprover insamlade i Hamrångeområdet, norr om Gävle,. Fyra prover från tre olika lokaler valdes ut för undersökningen. Studierna genomfördes med optiskt mikroskop samt svepelektronmikroskop, där back-scatter och katodluminescens användes. READ MORE

  5. 4. Metamorphic study of metasediment from the Kangilinaaq Peninsula, West Greenland

    University essay from Lunds universitet/Geologiska institutionen

    Author : Lina Åberg; [2005]
    Keywords : West Greenland; Nagssugtoqidian Orogen; supracrustal rocks; Kangilinaaq Peninsula; metasedimentary rocks; pelites; correlation; Västra Grönland; Nagssugtoqidiska orogenesen; suprakrustala bergarter; metasedimentära bergarter; peliter; korrelation; Earth and Environmental Sciences;

    Abstract : The Nagssugtoqidian Orogen is represented by an approximately 300 km wide Palaeoproterozoic deformation and metamorphic belt that stretch through the southern and middle parts of west Greenland. The Orogen is characterized and dominated by metamorphosed Archaean orthogneisses with minor supracrustal sequences. READ MORE

  6. 5. A petrographical and geochemical study of granitoids from the southeastern part of the Linderödsåsen Horst, Skåne

    University essay from Lunds universitet/Geologiska institutionen

    Author : Charlotta Janson; [2004]
    Keywords : geography; geology; petrography; geochemistry; granitoids; Linderödsåsen Horst; Skåne; Earth and Environmental Sciences;

    Abstract : Den prekambriska, kristallina berggrunden i Skåne är blottad endast i de stora nordväststrykande horstar som är ungefär parallella med Tornquistzonen. På den sydostligaste delen av Linderödsåsen i sydöstra Skåne har Stenshuvuds porfyritiska granitoider, som tidigare antogs vara paleoproterozoiska vulkaniter, nyligen daterats till 1458 Ma (Cecys et al. READ MORE