Essays about: "sphalerite"

Showing result 11 - 15 of 20 essays containing the word sphalerite.

1. 11. Ore mineralogy and silver distribution at the Rävliden N volcanogenic massive sulphide deposit, Skellefte district, Sweden

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

   Author : Simon Johansson; [2017]
   Keywords : Rävliden N; Boliden Mineral AB; Volcanogenic massive sulphide deposit; Ore mineralogy; Silver; Remobilisation;

   Abstract : The Rävliden North deposit (Rävliden N) is a volcanogenic massive sulphide (VMS) deposit in the western part of the Skellefte district, northern Sweden. The district is one of Sweden’s major metallogenic provinces with a significant amount of VMS deposits. READ MORE

3. 12. Geometallurgical approach to understand how the variability in mineralogy at Zinkgruvan orebodies affects the need for copper activation in the bulk rougher-scavenger flotation

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

   Author : Ivan Belo Fernandes; [2017]
   Keywords : Geometallurgy; Zinkgruvan; Zn-Pb flotation; ore variability; mineral chemistry; pyrrhotite; magnetic separation;

   Abstract : Zinkgruvan is a Pb-Zn-Ag deposit located in south-central Sweden, owned and operated by Lundin Mining. The ore is beneficiated by a collective-selective flotation circuit, recovering both galena and sphalerite in a bulk rougher-scavenger flotation stage and later on separating them into two final products. READ MORE

4. 13. Defining The Geochemical Footprint For Gold Mineralisation Around Birthday Reef.Reefton Goldfield, New Zealand

   University essay from Stockholms universitet/Institutionen för geologiska vetenskaper

   Author : Jonathan Hamisi; [2016]
   Keywords : Orogenic gold; hydrothermal alteration; Reefton; mass changes; geochemical footprint; vectors; exploration; Blackwater;

   Abstract : Abstract Orogenic gold deposits from the Reefton goldfield in New Zealand hosted in Ordovician metasediments of the Greenland group have produce 67 tons of gold before 1951. The Blackwater mine in Waiuta account for about 1/3 of the gold production at Reefton prior 1951. READ MORE

5. 14. Compositional Systematics of Sphalerites from Western Bergslagen, Sweden

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Aristeidis Kritikos; [2016]
   Keywords : Western Bergslagen; sphalerite; critical elements; trace elements; substitution mechanisms; EMPA; LA-ICP-MS; Västra Bergslagen; zinkblände; kritiska metaller; spårelement; substitutionsmekanismer; EMPA; LA-ICP-MS;

   Abstract : Sphalerite is, apart from being the main global source of zinc (Zn), also one of the main source for the critical elements indium (In), gallium (Ga) and germanium (Ge), which can be extracted as by-products during Zn mining. In the westernmost part of the Palaeoproterozoic Bergslagen ore province, Sweden, In-anomalies have been reported from sulphide mineralizations. READ MORE

6. 15. Alteration of the Bjursås Ore Field, Oxberg, Bergslagen District, Sweden

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Tomas Lindeberg; [2015]
   Keywords : Bergslagen; Bjursås; Oxberg; alteration; base metals; VHMS; Large box plot; chemostratigraphy; Bergslagen; Bjursås; Oxberg; omvandling; basmetaller; VHMS; Large låddiagram; kemistratigrafiskt-tvärsnitt; vektorer;

   Abstract : The Bjursås ore field is located within the Bergslagen domain of central Sweden just northwest of the town of Falun. The field hosts small scale mines such as the 17th century Floberg copper mine and has been the focus of mineral exploration on several occasions during the 20th and early 21th century, with no major economic deposits being uncovered as of yet. READ MORE