Sökning: "natural remanent magnetization"

Visar resultat 1 - 5 av 6 uppsatser innehållade orden natural remanent magnetization.

1. 1. Petrophysical Properties of Rocks in Central Kiruna Mining District, Sweden

   Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Simon Peter Dagbui; [2023]
   Nyckelord :Kiruna mining district; Common earth model; petrophysics; density; AMS; complex electrical resistivity; NRM; magnetization; IOA; Kirunavaara Mineralization;

   Sammanfattning : High economic and metallogenic significance of northern Norrbotten ore district in Sweden which hosts Kiruna mining district makes it a very important ore district in the world. Northern Norrbotten ore district contributes a combined 90 percent of iron production in Europe. LÄS MER

3. 2. Paleomagnetic and Thermomagnetic Studies on Rock Samples from COSC - 1 Drilling Project

   Master-uppsats, Uppsala universitet/Geofysik

   Författare :Wanyi Li; [2022]
   Nyckelord :Scandinavian Caledonides; remanent magnetization; AF demagnetization; temperature dependent magnetic susceptibility; Skandinaviska Kaledoniderna; remanent magnetism; växelfältsavmagnetisering; temperaturberoende av magnetisk susceptibilitet;

   Sammanfattning : The COSC-1 borehole located in the Lower Seve nappe of the Central Scandinavian Caledonides is intended to study the tectonic evolution of the Paleozoic orogen. The drilling project reached a depth of 2495.8m and obtained samples from different lithologal units of mica schist, amphibolite, gneiss, and mylonitic gneisses. LÄS MER

4. 3. Rock Magnetic Studies of Magnetite and Quartzite: Results at Ambient Conditions and From Diamond Anvil Pressure Experiments (~2 GPa)

   Master-uppsats, Uppsala universitet/Geofysik

   Författare :Dimitra Daniil; [2021]
   Nyckelord :magnetic susceptibility; remanent magnetization; mDAC; AF demagnetization; NRM; IRM; ARM; magnetisk susceptibilitet; magnetisk remanens; mDAC; AF demagnetisering; NRM; IRM; ARM;

   Sammanfattning : Numerous techniques are used to study the magnetic history and properties of rocks, which provides important data on the Earth’s interior. In this study we conducted a series of experiments on two different sample sets, comprising pure magnetite (Set1) and a mixture of magnetite-hemoilmenite-bearing quartzite (Set2), in order to gather information about their magnetic susceptibility and remanent magnetization. LÄS MER

5. 4. Petrophysic of the Host-rock to the Ore in the Lovisa Mine, Bergslagen

   Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Oscar Gilljam Päärt; [2019]
   Nyckelord :Petrophysics; density; magnetic volume susceptibility; natural remanent magnetization; Bergslagen; lithology; Petrofysik; densitet; magnetisk susceptibilitet; naturlig magnetisk remanens; Bergslagen; lithologi;

   Sammanfattning : The Bergslagen region has three base-metal mines operating today, and one of them is the Lovisa mine, which host a Zn-Pb-Ag deposit. The Lovisa mine is located in the Guldsmedshyttan area north of Lindesberg. LÄS MER

7. 5. A rock magnetic study of the Åkerberg gold deposit, northern Sweden

   Magister-uppsats, Lunds universitet/Geologiska institutionen

   Författare :Lars Dahlenborg; [2007]
   Nyckelord :NRM; gold ore; pyrrhotite; magnetite; Åkerberg; guldmalm; magnetkis; magnetit; Earth and Environmental Sciences;

   Sammanfattning : A rock magnetic study has been preformed of the Åkerberg gold deposit, located 30 km NE of Boliden in northern Sweden. The gold mineralization is located to a zone of subparallel quartz veins in a layered gabbro. Ground surveys show a lowering of the magnetic properties at the ore zone. LÄS MER