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Showing result 1 - 5 of 11 essays matching the above criteria.

1. 1. Petrography, alteration and structure of the Bronäs Zn-Pb-Ag deposits, Bergslagen, Sweden

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

   Author : Tom Turner; [2020]
   Keywords : Bronäs; Sala;

   Abstract : This report aims to characterize the alteration styles and mineralization of the Zn-Pb-Ag Bronäs deposit, in the Sala area of the Bergslagen mining district, Sweden.  It presents data collected through 237m of lithological logging and subsequent lithogeochemical data, which, coupled with thin section and SEM analysis has led to the first geological descriptions of the rocks in the deposit. READ MORE

3. 2. Characterization of Fe-rich skarns and fluorapatite-bearing magnetite occurrences at the Zinkgruvan Zn-Pb-Ag and Cu deposit, Bergslagen, Sweden

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

   Author : Filip Ivarsson; [2019]
   Keywords : Zinkgruvan; Bergslagen; Magnetite; REE; Broken Hill-type; Skarn; SEDEX;

   Abstract : Zinkgruvan is a stratiform Zn-Pb-Ag and Cu sulphide deposit hosted by Paleoproterozoic strata in southern Bergslagen, Sweden. The deposit underwent medium-high grade regional metamorphism during the Svecokarelian orogeny, including partial melting of the host succession. READ MORE

4. 3. 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

5. 4. Att läsa brandspår i skogslandskapet: olika underlag för att förstå naturlandskapets branddynamik

   University essay from SLU/School for Forest Management

   Author : Anders Dahlberg; [2016]
   Keywords : ASIO; brandspårsfrekvens; skogsbrand;

   Abstract : The purpose of this study is to explore different methods to understand the local history of past fire disturbance regimes in a forest management unit. Focusing on the Bergslagen region in south-central Sweden, which has a very long history of forest management, the frequency of occurrence of fire scars on living trees, burned wood, and macroscopic charcoal in the litter layer and in small peat bogs, were studied in landscape strata different with different biophysical characteristics affecting the probability of fire. READ MORE

6. 5. Mineral Chemistry and Parageneses of Oxyborates in Metamorphosed Fe-Mn Oxide Deposits

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Zacharias Enholm; [2016]
   Keywords : Oxyborates; in situ boron analysis; microchemical analysis; Raman analysis; Fe-Mn oxide deposits; Långban; Nordmark; Jakobsberg; Oxyborater; in situ boranalys; mikrokemisk analys; Ramananalys; Fe-Mn-oxidmalmer; Långban; Nordmark; Jakobsberg;

   Abstract : Oxyborate minerals can represent the most important sink for boron in silica-undersaturated mineralised systems such as those of the Långban-type. Yet, their distribution, characteristics and parageneses are still not completely known. READ MORE