Essays about: "mineral chemistry"

Showing result 16 - 20 of 40 essays containing the words mineral chemistry.

  1. 16. Geothermal Potential of Sub-Volcanic Intrusions in a Typical Caldera Setting

    University essay from Uppsala universitet/Mineralogi, petrologi och tektonik

    Author : Einar Bessi Gestsson; [2018]
    Keywords : sub-volcanic intrusions; thermometry; numerical modeling; geothermal energy; magmaintrusioner; termometri; numerisk modell; geotermisk energi;

    Abstract : Sub-volcanic intrusions can form an extensive network of sills, dikes and other intrusion types that make up a plumbing system beneath volcanoes. Such intrusions are the heat source for high-temperature geothermal systems in volcanic areas and therefore, it is of great importance to study them in relation to geothermal exploration and production. READ MORE

  3. 17. How does drainage affect hydrology and hydrochemistry in boreal peatlands?

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Albin Enetjärn; [2018]
    Keywords : trenching; ditching; draining; dikning; dikningseffekter; torvmark; markavvattning;

    Abstract : Boreal peatlands are substantial terrestrial carbon storages. They are also important for the function of several large-scale cycles and systems that humanity benefits from. Drainage affects peatlands by establishing a new, lower equilibrium for the groundwater table. READ MORE

  4. 18. Magmatic Sources and Processes Recorded by the Volcanics from the Izu Bonin Rear Arc

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : John Owen Edgar; [2017]
    Keywords : Izu-Bonin; plagioclase; magma; strontium; thermobarometry; rear arc; Izu-Bonin; plagioklas; magma; strontium; termobarometri; bakbåge;

    Abstract : The Izu rear-arc volcanism was investigated by IODP EXP350 in spring 2014. A total stratigraphy of1800 m was drilled, and contains volcaniclastic material within tuffaceous mudstone. READ MORE

  5. 19. Particle tracking in geometallurgical testing for Leveäniemi Iron ore, Sweden

    University essay from Luleå tekniska universitet/Mineralteknik och metallurgi

    Author : Efraín Cárdenas; [2017]
    Keywords : Geometallurgy; Process mineralogy; Particle tracking; Leveäniemi; Mass balance; Iron ore; HSC;

    Abstract : In a particle based geometallurgical model, the behavior of the particles can be used for forecast the products and quantify the performance of the different ore types within a deposit. The particle tracking is an algorithm developed by Lamberg and Vianna 2007 whose aim is to balance the liberation data in a mineral processing circuit composed by several processing units. READ MORE

  6. 20. Crystallization and Emplacement of the Monte Amarelo Dikes: Magma Storage Assessment on Fogo, Cape Verde Islands

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Olle Risby; [2017]
    Keywords : Fogo; magma storage model; thermobarometry; clinopyroxene; intrusion landslide.; Fogo; magmalagringsdjup; termobarometri; klinopyroxen; intrusion; skred;

    Abstract : The volcanic island of Fogo belongs to the Cape Verde archipelago, a two-tiered chain of islands situated 500 km west of the African coast. Fogo is regarded as one of the most active volcanoes in the world with 10 eruptions during the last 250 years. The former shield volcano Monte Amarelo reached 3500 m.a. READ MORE