Sökning: "orogenic gold"

Visar resultat 1 - 5 av 6 uppsatser innehållade orden orogenic gold.

1. 1. Geological characterization of rock samples by LIBS and ME-XRT analytical techniques

   Master-uppsats, Luleå tekniska universitet/Geovetenskap och miljöteknik

   Författare :Nsioh Elvis Nkioh; [2022]
   Nyckelord :geological characterization; analytical techniques; LIBS; ME-XRT; SEM; element maps; SEM-EDS; secondary electrons; rock samples; automated ore microscopy; SEM-Zeiss Merlin; element weight percentages; element oxide percentages; scanning techniques; analytical methods; laser induced breakdown spectrometry; multi energy x-ray transmission; scanning electron microscope; carbon coating; mineralogical classification; element composition; rock chemistry; rock chemical composition;

   Sammanfattning : One of the major challenges in earth sciences and mineral exploration has been to determine with high accuracy and at a fast rate the elemental composition as well as the general chemistry of a rock sample. Many analytical techniques e.g. LÄS MER

3. 2. The Structural Architecture of the Barsele Area, Sweden : Characterising the deformation events and mineralisation

   Master-uppsats, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

   Författare :Jaide Derbyshire; [2021]
   Nyckelord :Barsele; Structural Geology; Mineralisation; Deformation;

   Sammanfattning : Located at an important intersect between orogenic Au deposits in Sweden’s Gold Line and volcanicmassive sulphide (VMS) deposits in the Skellefte Mining District, the Barsele area is of high interest.Currently, the Barsele deposit consists of the Norra VMS deposit and 3 intrusive-hosted orogenic Audeposits: Avan, Central, and Skiråsen which are hosted in a 1876 ± 10 Ma early orogenic granodiorite(Thomas, et al. LÄS MER

4. 3. Volcanic facies and hydrothermal alteration at the Norra volcanigenic massive sulfide deposit : Storuman area, Sweden

   Master-uppsats, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

   Författare :Meseret Gebreyesus; [2020]
   Nyckelord :Volcanic massive sulfide deposit; alteration zonation; volcanic chemostratigraphy; facies architecture;

   Sammanfattning : The Skellefte District, with a long and rich history of base metal extraction that commenced asearly as 1924, is rated amongst the leading mining provinces in Sweden and Europe. The districtrepresents a Paleoproterozoic volcanic arc hosting more than 85 known (gold-bearing) VMSdeposits and several economic grade orogenic gold occurrences. LÄS MER

5. 4. Genetic relationships and origin of the Ädelfors gold deposits in Southeastern Sweden

   Master-uppsats, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

   Författare :Tobias Wiberg Steen; [2018]
   Nyckelord :Ädelfors; sulfur isotope ratio; pyrite chemistry; orogenic gold; gold; gold quartz vein; trace elements; gold mine; banded iron formation; SEM-EDS analysis; gold silver ratio; Ädelfors; svavelisotoper; pyritkemi; orogent guld; guldrik kvartsåder; guld; guldfyndighet; spårelement; bandad järnmalm; SEM-EDS analys; guld silver förhållande;

   Sammanfattning : Ädelfors is situated ca 17 km east of Vetlanda, Jönköping County, in the N-S striking Trans-scandinavian igneous belt and is a part of the NE-SW striking 1.83-1.82 Ga Oskarshamn-Jönköping belt emplaced during a continental subduction towards the Svecofennian continental margin. The continental arc hosts the 1. LÄS MER

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

   Master-uppsats, Stockholms universitet/Institutionen för geologiska vetenskaper

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

   Sammanfattning : 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. LÄS MER