Essays about: "seismisk"

Showing result 1 - 5 of 27 essays containing the word seismisk.

  1. 1. Lejarfjället Garnet(?) Peridotite – Origin and Petrological Characterization of Symplectitic Aggregates in Ultramafic Rocks

    University essay from Uppsala universitet/Mineralogi, petrologi och tektonik

    Author : Felicia Eriksson; [2022]
    Keywords : ultramafic; high-pressure metamorphism; peridotite; garnet breakdown; Scandinavian Caledonides; ultramafisk; högtrycks metamorfos; peridotit; granat; skandinaviska kaledoniderna;

    Abstract : Ultramafic rocks are abundant in the Earth’s mantle but rare on the surface. Since no in-situ samples from the mantle can be collected, mantle rocks provide knowledge of mechanisms operating in the mantle and large-scale processes that brought them up to the surface. READ MORE

  3. 2. The “ultramafic” Intrusion’s within the peridotite from Härbergsdalen : Petrological characterization of infiltration record within the lithospheric mantle

    University essay from Uppsala universitet/Mineralogi, petrologi och tektonik

    Author : Per Volter; [2022]
    Keywords : ;

    Abstract : The mantle constitutes ~80% of Earths volume, however, due to its location deep beneath Earth’s surface the mantle is inaccessible to study in situ. Despite this, we still have information about its composition thanks to seismic studies which haven proven the mantle to be in generally homogenous and dominated by a rock called peridotite. READ MORE

  4. 3. Reflection Seismic Survey for Characterising Historical Tailings and Deep Targeting at the Blötberget Mine, Central Sweden

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : EMMANUEL ALOFE; [2021]
    Keywords : reflection seismic; exploration; tailings; sustainability; circularity; tomography; reflektion seismisk; prospektering; gruvavfall; hållbarhet; cirkularitet; tomografi;

    Abstract : Iron has been an essential element to human development and iron-oxide deposits are known to host minerals that are labelled as critical raw materials (CRMs), especially in the EU. Therefore, ensuring a sustainable supply of CRMs require access to both primary and secondary sources of their host deposits such as iron oxides. READ MORE

  5. 4. Assessment of static performance of LKAB´s welded mesh : Laboratory testing and analysis

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

    Author : Fredrik Eriksson; [2020]
    Keywords : ;

    Abstract : Surface support is an areal support, which is installed on rock excavation surface to prevent bulking of rock mass and retain loose rock fragments. Welded wire mesh is one type of surface support. Literature study indicates that there is a wide range of testing methods on mesh. READ MORE

  6. 5. Cross-comparison of Non-Linear Seismic Assessment Methods for Unreinforced Masonry Structures in Groningen

    University essay from KTH/Betongbyggnad

    Author : Viktor Peterson; Zihao Wang; [2020]
    Keywords : Non-linear time-history analysis; non-linear pushover analysis; N2-method; equivalent frame model; continuum model; numerical seismic assessment; unreinforced masonry buildings; Olinjär tids-historikanalys; olinjär stjälpningsanalys; N2-metoden; ekvivalent rammodell; kontinuumelement modell; numerisk jordbävningsanalys; oarmerade murverksbyggnader;

    Abstract : A large amount of low-rise unreinforced masonry structures (URM) can be found in Groningen, the Netherlands. More and more induced earthquakes with short duration have been detected in this region due to gas exploitation. READ MORE