Essays about: "Mineralisation"

Showing result 16 - 20 of 30 essays containing the word Mineralisation.

1. 16. 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

3. 17. Determining host rock protolith in an altered VMS deposit in the Rävliden area, North Sweden

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Zana Mataruga; [2016]
   Keywords : Rävliden; lithogeochemistry; immobile elements; protolith; alteration; Rävliden; lithogeokemi; immobila element; protolit; omvandlingar;

   Abstract : The Rävliden mine is located in the Skellefte district in northern Sweden. In close proximity lays the Kristineberg deposit containing zinc, copper and lead ore which has been mined since the 1940’s. The district is rich in massive sulphide deposits and the mining history can be dated back to the 1920’s. READ MORE

4. 18. 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

5. 19. Spatial Variability in Greenhouse Gas Production in Sediments of a Tropical Reservoir

   University essay from Uppsala universitet/Limnologi

   Author : Stina K. Björkman; [2015]
   Keywords : CH4 production; C N-ratio; water content; carbon mineralisation; tropical reservoir; greenhouse gas emission;

   Abstract : The objective was to study the spatial variability of organic matter degradation in the sediments of a tropical reservoir to answer the hypothesis that degradation is significantly higher in river inflow areas than in other parts of the reservoir. Sediment cores were collected from twelve sites in the nutrient poor drinking water reservoir Chapéu d’Uvas in Minas Gerais, Brazil. READ MORE

6. 20. REE mineralisation and metasomatic alteration in the Olserum metasediments

   University essay from Lunds universitet/Geologiska institutionen

   Author : Wayne Fullerton; [2014]
   Keywords : metasediment; metasomatism; mineralisation; monazite; Olserum; REE; xenotime; Earth and Environmental Sciences;

   Abstract : The Olserum mineralisation is situated in the metasediments of the Västervik formation, which repre-sents the southernmost continental margin of the Svecokarelian Domain. After deposition between 1.88 – 1.85 Ga these sediments were subsided to a depth of about 10 km and intruded by a series of granitoid melts. READ MORE