Essays about: "rock"

Showing result 1 - 5 of 605 essays containing the word rock.

  1. 1. Adapted data collection in field utilizing RMR and the Q-system

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

    Author : Amanda Olsson; [2024]
    Keywords : Rock mass classification; Q-slope; SMR; Slope stability;

    Abstract : The focus on slope stability has increased rapidly in Norway over the last years due to several unwanted landslides. In Norway, the most used method today to classify the rock mass and to determine the required reinforcement, is the Q-system. In addition to that the RMR method is also a commonly used method. READ MORE

  2. 2. Rock Wedge Stability Assessment : A Comparative Analysis of Limit Equilibrium and Discrete Element Methods

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

    Author : Vilma Nordh; [2024]
    Keywords : Numerical modelling; wedge stability; 3DEC; UnWedge;

    Abstract : Rock wedge stability is a common concern in underground excavations. Since the wedge stability influences the support design, it is important to use a wedge stability analysis method that can capture factors like excavation geometry, joint parameters and properties, rock mass properties, rock cover, and stress field as accurately as possible. READ MORE

  3. 3. Petrological, geochemical and structural evidence of fluid-rock interaction in the Siljan Ring

    University essay from Stockholms universitet/Institutionen för geologiska vetenskaper

    Author : William Crang; [2024]
    Keywords : methane; hydrothermal fluids; fluid-rock interaction; impact craters; reduction haloes; pyrite preservation; Siljan Ring;

    Abstract : The Siljan Ring in Dalarna, Sweden is the site of the largest meteor impact crater in Europe and has long been a topic of discussion regarding methane production. However, the source of this methane and the timing of production in relation to the impact remain unclear. READ MORE

  4. 4. Characterization of Cu-mineralized carbonate veins in the Alta-Kvænangen Tectonic Window, Norway

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

    Author : Ellen Svens; [2024]
    Keywords : Greenstone belt; IOCG; Svecokarelian orogeny; Alta-Kvænangen Tectonic Window; Bergmark anticline;

    Abstract : The Alta-Kvænangen Tectonic Window is part of a regional greenstone belt that formed around 2.3 Ga – 2.0 Ga. The Bergmark anticline in the area has gone through greenschist to amphibolite facies metamorphism and hosts Cu, Co and Au mineralizations in hydrothermal veins, albite felsite and chemical traps. READ MORE

  5. 5. Rock Art in No Man’s Land - A case study of the inland rock art at Högsbyn, Dalsland

    University essay from

    Author : Christoffer Magnusson; [2023-09-18]
    Keywords : sociokulturella system; socialsemiotik; 3D dokumentering; Brastad; Högsbyn; hällristningar i inlandet; kustnära hällristningar; Nordisk bronsålder;

    Abstract : Hällristningar från den nordiska bronsåldern har en hög koncentration i det kustnära Bohuslän. Forskningen har således fokuserat på detta område. Mindre uppmärksamhet har getts till hällristningar inåt land. READ MORE