Essays about: "magmatic intrusion"

Showing result 1 - 5 of 15 essays containing the words magmatic intrusion.

  1. 1. Volcanic facies and hydrothermal alteration at the Norra volcanigenic massive sulfide deposit : Storuman area, Sweden

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Meseret Gebreyesus; [2020]
    Keywords : Volcanic massive sulfide deposit; alteration zonation; volcanic chemostratigraphy; facies architecture;

    Abstract : The Skellefte District, with a long and rich history of base metal extraction that commenced asearly as 1924, is rated amongst the leading mining provinces in Sweden and Europe. The districtrepresents a Paleoproterozoic volcanic arc hosting more than 85 known (gold-bearing) VMSdeposits and several economic grade orogenic gold occurrences. READ MORE

  3. 2. Fracture characterization in magmatic rock, a case study of the Sosa-dyke (Neuquén Basin, Argentina)

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Nilsson Jim; [2020]
    Keywords : dyke; magmatic intrusion; fractures; Sosa dyke; permeability; intrusion; magmatisk intrusion; sprickor; Sosa intrusionen; permeabilitet;

    Abstract : There are many examples worldwide were fossil magmatic intrusions influence the local water and energy supply. Due to that intrusions can act as a conductor and a reservoir, but also as a barrier for fluids and gases in the ground. The decisive feature between conductor or barrier in an intrusion is its fracture network. READ MORE

  4. 3. Structural control on the Peña del Seo tungsten-greisen vein deposit, northwest Spain

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Ida Kronsell; [2019]
    Keywords : Vein deposit Greisen Tungsten;

    Abstract : Tungsten is listed on the European Commission list of critical raw materials that are crucial to Europe’s economy. By raising awareness of tungsten as a critical raw material the EU can prioritise to enhance exploration, mining and recycling of tungsten. READ MORE

  5. 4. Petrology of platinum-group element mineralization in the Koillismaa intrusion, Finland

    University essay from Lunds universitet/Geologiska institutionen

    Author : Jon Gustafsson; [2019]
    Keywords : Platinum-group mineralization; Koillismaa-Näränkävaara Complex; platinum-group minerals; sulfur isotopes; Finland; Earth and Environmental Sciences;

    Abstract : The 2.44 Ga Koillismaa intrusion of the Koillismaa-Näränkävaara Layered Complex, in northeastern Finland, has been studied in order to assess the formation processes involved during platinum-group element (PGE) mineralization. READ MORE

  6. 5. 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