Essays about: "heavy minerals"

Showing result 11 - 15 of 20 essays containing the words heavy minerals.

  1. 11. OIL SHALE ASH UTILIZATION IN INDUSTRIAL PROCESSES AS AN ALTERNATIVE RAW MATERIAL

    University essay from KTH/Industriell ekologi

    Author : Hussain Azeez Mohamed; Leonel Campos; [2016]
    Keywords : ;

    Abstract : Oil shale is a fine-grained sedimentary rock with the potential to yield significant amounts of oil and combustible gas when retorted. Oil shale deposits have been found on almost every continent, but only Estonia, who has the 8th largest oil shale deposit in the world has continuously utilized oil shale in large scale operations. READ MORE

  3. 12. Effect of soil tillage system and straw retention on soil aggregation and water capacity

    University essay from SLU/Dept. of Biosystems and Technology (from 130101)

    Author : Emma Lindqvist; [2015]
    Keywords : soil; tillage; structure; aggregation; straw; water capacity;

    Abstract : Arable land supplies food and it is therefore important to develop the production and land-use in a sustainable way. To grow crops for food should be both economical and environmentally sustainable and the soil structure and quality should be taken in consideration when cultivating our land. READ MORE

  4. 13. Evaluation of sorption behavior of two reactive filter materials using dual column laboratory investigation.

    University essay from KTH/Mark- och vattenteknik

    Author : Daniel Megersa; [2015]
    Keywords : Onsite waste water treatment; Reactive filter materials; Polonite; Zeolite; Sorption; Ion-exchange; Adsorption; Precipitation; Dual-Column experiment;

    Abstract : Phosphorous and nitrogen are vital elements for the well-being of biological life. Industrial discharges, waste water infiltration systems, conventional waste water collection and treatment systems, agricultural runoffs and landfill leachates had been emitting significant quantity of these nutrients into water bodies. READ MORE

  5. 14. REE mineralisation and metasomatic alteration in the Olserum metasediments

    University essay from Lunds universitet/Geologiska institutionen

    Author : Wayne Fullerton; [2014]
    Keywords : metasediment; metasomatism; mineralisation; monazite; Olserum; REE; xenotime; Earth and Environmental Sciences;

    Abstract : The Olserum mineralisation is situated in the metasediments of the Västervik formation, which repre-sents the southernmost continental margin of the Svecokarelian Domain. After deposition between 1.88 – 1.85 Ga these sediments were subsided to a depth of about 10 km and intruded by a series of granitoid melts. READ MORE

  6. 15. A Russian record of a Middle Ordovician shower : extraterrestrial chromite in Volkhovian-Kundan (lower Darriwilian) strata at Lynna River, St. Petersburg Region

    University essay from Lunds universitet/Geologiska institutionen

    Author : Anders Lindskog; [2011]
    Keywords : Lynna River; extraterrestrial chromite; fossil meteorites; Volkhov; Kunda; Darriwilian; heavy minerals; Lenodus variabilis; Lynna; utomjordisk kromit; fossila meteoriter; tungmineral; Earth and Environmental Sciences;

    Abstract : Numerous fossil meteorites and high concentrations of sediment-dispersed extraterrestrial chromite (EC) grains with typical ordinary chondritic composition have previously been documented from 467±1.6 Ma Ma lower Kundan (Middle Ordovician) strata. READ MORE