Essays about: "diagenesis"

Showing result 1 - 5 of 7 essays containing the word diagenesis.

  1. 1. Ancient plant cuticle chemistry: preservation and characterization of organic matter as biomarker of past UV-B radiation

    University essay from KTH/Kemi

    Author : Larissa Lopes Cavalcante; [2021]
    Keywords : UACs; fossil cuticle; p-coumaric acid; ferulic acid; UV-B proxy; micro-FTIR; confocal Raman microscope; UAF; fossil kutikula; p-kumarinsyra; ferulinsyra; UV-B-proxy; mikro-FTIR; konfokalt Raman-mikroskop;

    Abstract : Biologiska processer hos olika organismer påverkas av ultraviolett-B-strålning (UV-B). Kunskapen om förändringar i UV-B-flödet som nått planetens yta under det geologiska tidsspann sedan flercelligt liv uppstod är dock begränsad. READ MORE

  3. 2. First-arrival traveltime tomography of active-source data in the Kansanshi copper mine, northern Zambia

    University essay from Uppsala universitet/Geofysik

    Author : Vessela Hobson; [2019]
    Keywords : refraction seismics; tomographic inversion; Zambian Copperbelt; copper;

    Abstract : Sedimentary rock-hosted deposits are a major source of copper and cobalt, with the Neoproterozoic central African Copperbelt being among the largest Cu-Co provinces in the world, accounting for around 15% of its copper resource. The deposits occur primarily in the carbonates and siliciclastic sediments overlying the basement, and formed during early diagenesis (around 820 Ma) and late diagenesis/metamorphism during the Pan-African Orogeny (580-520 Ma). READ MORE

  4. 3. Paleontology and Sedimentology of the Alum Shale Formation at Björnberget, Västerbotten County, Sweden

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Mannelqvist Alexander; [2016]
    Keywords : Brachiopoda; Acrotretida; New species; New locality; Alum Shale Formation; Brachiopoda; Acrotretida; ny art; ny lokal; Alunskifferformationen;

    Abstract : A new locality of the Alum Shale Formation at Björnberget, Västerbotten County, of the lower allochthon of the Caledonian front is described herein. Two new species of acrotretid brachiopods were found. Tingitanella vilhelminia n. sp. READ MORE

  5. 4. The Ordovician Orthoceratite Limestone and the Blommiga Bladet hardground complex at Horns Udde, Öland

    University essay from Lunds universitet/Geologiska institutionen

    Author : Magnus Eriksson; [2010]
    Keywords : Orthoceratite Limestone; hardground; Lanna; Volkhov; Dapingian; Gastrochaenolites oelandicus; Blommiga Bladet; sea-level; Ortoceratitkalkstenen; hårdbotten; havsnivå; Earth and Environmental Sciences;

    Abstract : Blommiga Bladet, Flowery Sheet in English, is an Early Ordovician (basal Dapingian) hardground complex in the lowermost part of the Orthoceratite Limestone in southern Sweden. It formed in an epicontinental sea, across Baltoscandia and has been described also from Russia as “Steklo”, from Estonia as “Pustakkith” and from deep borings in Poland, thus covering an area exceeding 500,000 km². READ MORE

  6. 5. Correlation between diagenesis and sedimentary facies of the Bentheim Sandstone, the Schoonebeek field, The Netherlands

    University essay from Lunds universitet/Geologiska institutionen

    Author : Pär Malmborg; [2002]
    Keywords : Bentheim Sandstone; sedimentary facies; diagenesis; petroleum reservoir; Lower Cretaceous; Valanginian; Lower Saxony Basin; Schoonebeek; Gildehaus; Earth and Environmental Sciences;

    Abstract : The Valanginian (Lower Cretaceous) Bentheim succession of the Schoonebeek field is deposited in a shallow-marine environment along the southern and southwestern coast of the Lower Saxony Basin in eastern Netherlands. Three cores from Schoonebeek field, selected by NAM (Nederlandse Aardolie Maatschappij), and a number of samples from an outcrop in the Bentheim Sandstone at Gildehaus were studied. READ MORE