 | | Report (issue) | | Mining in Greenland GEOLOGY AND ORE Gold mineralisation and gold potential in South Greenland No. 1 -...in South Greenland Several decades of geological mapping and exploration in South Greenland have demonstrated...Internet: www.geus.dk/gmom. Geological setting South Greenland is dominated by the juvenile Palaeoproterozic...(1900–1750 Ma), which covers the southern tip of Greenland. The middle Proterozic Gardar province includes...pathfinder elements The gold potential of South Greenland is indicated in the geochemical mapping by the |  | Bell, Robin-Marie, Kolb, Jochen, Waight, Tod Earle, Bagas, Leon, Thomsen, Tonny B. (2017) A Palaeoproterozoic multi-stage hydrothermal alteration system at Nalunaq gold deposit, South Greenland. Mineralium Deposita, 52 (3) 383-404 doi:10.1007/s00126-016-0667-7 | Journal (article/letter/editorial) | | hydrothermal alteration system at Nalunaq gold deposit, South Greenland Robin-Marie Bell 1,2 & Jochen Kolb...Springer-Verlag Berlin Heidelberg 2016 Abstract Nalunaq is an orogenic, high gold grade deposit situated...situated on the Nanortalik Peninsula, South Greenland. Mineralisation is hosted in shear zone-controlled quartz...site of Greenland’s only operating metalliferous mine until its closure in 2014, having produced 10.67...a multistage hydrothermal alteration system at Nalunaq. A clinopyroxene-plagioclase-garnet(-sulphide) |  | | Journal (article/letter/editorial) | | mineralogy of goldbearing rocks from the Nalunaq gold deposit, Greenland T. A. Grammatikopoulos, L. Porritt...Porritt, J. S. Petersen and K. Christensen The Nalunaq deposit is a shear-zone hosted gold deposit, characterised...Nanortalik district in South Greenland. As a generic type, the Nalunaq gold mineralisation is a mesothermal...pyrrhotite, löllingite, pyrite, arsenopyrite, chalcopyrite, gold and electrum, scarce Bi-sulphosalts, covellite...and quartz veins (329020 and Quartz-1), from the Nalunaq gold deposit were examined to describe the host |  | | Report (issue) | | Assessment of orogenic gold mineralisation in Greenland No. 26 - February 2015 GO-26_GO-26 19/02/15...mineralisation in Greenland An orogenic gold deposit has been mined at Nalunaq (South Greenland) from 2004 to...potential for undiscovered orogenic gold deposits in Greenland, a workshop in Copenhagen (November 2014) investigated...that areas of South Greenland in relative proximity to the closed Nalunaq gold mine and the Archaean terranes...terranes of southern West and SouthWest Greenland have the highest potential for finding new orogenic |  | | Journal (article/letter/editorial) | | Mineral exploration in Greenland in the 1990s Downloaded by [Purdue University Libraries] at 20:36 21...The main exploration and research activities in Greenland in the 1990s fell into the following categories:...Tertiary Skaergaard intrusion. It continued in South Greenland, where all the gold occurrences in the Ketilidian...Prospecting for diamonds on the west coast of Greenland revealed occurrences of both micro- and macro-diamonds—in...encouraging. Several projects show promise, such as the Nalunaq gold deposit, the Citronen Fjord Zn–Pb deposit |  | | Journal (article/letter/editorial) | | Metallogeny of South Greenland: A review of geological evolution, mineral occurrences...Jochen, Thrane, Kristine, Metallogeny of South Greenland: A review of geological evolution, mineral occurrences...pertain. ACCEPTED MANUSCRIPT Metallogeny of South Greenland: A review of geological evolution, mineral occurrences...Thrane IP The Geological Survey of Denmark and Greenland, Øster Voldgade 10, DK-1350 Copenhagen K, Denmark...steenfelt@gmail.com; ast@geus.dk NU Abstract South Greenland has been the site of historic mining of cryolite |  | | Journal (article/letter/editorial) | | lead isotopes in Ketilidian Mobile Belt, South Greenland Downloaded by [University of California Santa...Palaeoproterozoic Ketilidian Mobile Belt of South Greenland within the past ten years. The mineralization...essence, therefore, gold deposition in South Greenland is restricted to a quite narrow time interval...isotopes from different occurrences in South Greenland indicate two main stages of gold emplacement.... Ta, Zr and rare-earth elements in the South Greenland uranium province.2,3,24,29,43 At the beginning |  | | Journal (article/letter/editorial) | | and genesis of Nalunaq Palaeoproterozoic shear zone-hosted gold deposit, South Greenland Downloaded by...Kaltoft, D. M. Schlatter and L. Kludt Synopsis The Nalunaq deposit is a shear zone-hosted gold deposit characterized...the east face and 1200 m on the north face of Nalunaq Mountain. Surface mapping, diamond drilling (78...South Greenland in the late stages of evolution of the Ketilidian Mobile Belt. South Greenland has recently...the west and east coasts of South Greenland.13,25,30–32 The Nalunaq deposit is the most prominent find |  | Dominy, , Glass, , O’Connor, , Lam, , Purevgerel, (2019) Integrating the Theory of Sampling into Underground Mine Grade Control Strategies: Case Studies from Gold Operations. Minerals, 9 (4) 238 doi:10.3390/min9040238 | Journal (article/letter/editorial) | | Integrating the Theory of Sampling into Underground Mine Grade Control Strategies: Case Studies from Gold...1.1. Rationale for this Contribution Underground mine grade control aims to deliver quality tonnes to...grade control samples relates to the following: mine development ore/waste decisions; investigation of...(production <250,000 t per annum) and some large mine operations rely on face samples for grade control...Sampling remains a critical component throughout the mine value chain. Without being able to analyse all material |  | | Journal (article/letter/editorial) | | Kangerluluk gold±copper mineralization (southeast Greenland): Pb and Nd isotopic constraints on its timing...Abstract The Ketilidian Mobile Belt (KMB) in South Greenland is dominated by the Palaeoproterozoic JulianehaÊb...Stendal (&) Geological Survey of Denmark and Greenland, Thoravej 8, 2400 Copenhagen NV, Denmark e-mail:...southern Greenland (Fig. 1), recently studied by the Geological Survey of Denmark and Greenland (GEUS;...South Greenland with marked gold occurrences. K Kangerluluk gold prospect (see Fig. 2); N Nalunaq. (Modi®ed |  | Kolb, Jochen, Keiding, Jakob K., Steenfelt, Agnete, Secher, Karsten, Keulen, Nynke, Rosa, Diogo, Stensgaard, Bo M. (2016) Metallogeny of Greenland. Ore Geology Reviews, 78. 493-555 doi:10.1016/j.oregeorev.2016.03.006 | Journal (article/letter/editorial) | | Metallogeny of Greenland Jochen Kolb, Jakob K. Keiding, Agnete Steenfelt, Karsten Secher...Rosa, Diogo, Stensgaard, Bo M., Metallogeny of Greenland, Ore Geology Reviews (2016), doi: 10.1016/j.oregeorev...pertain. ACCEPTED MANUSCRIPT Metallogeny of Greenland JOCHEN KOLB1, JAKOB K. KEIDING1,2, AGNETE STEENFELT1...Economic Geology, Geological Survey of Denmark and Greenland, Øster Voldgade 10, 1350 Copenhagen K, Denmark...TE D MA Corresponding author: jkol@geus.dk Greenland is the largest island on Earth, with 80% of its |  | | Journal (article/letter/editorial) | | represented by base metals sulphides (galena, pyrite, chalcopyrite, sphalerite, bornite) as well as by electrum...intrusion in the Fiskefjord region, southern West Greenland Paul EB Armitage*1 and Iain McDonald2 1 Paul...throughout the Fiskefjord region of southern West Greenland. A chain of fragments defines the Amikoq complex...of mafic dykes and intrusions in southern West Greenland and implications for a possible reconstruction...mineralogical characteristics of Nalunaq gold deposit, South Greenland: implications for gold location |  | | Journal (article/letter/editorial) | | in the evaluation of a deposit and planning of a mine or quarry, completely separate from the exploration...and genesis of Nalunaq Palaeoproterozoic shear zone-hosted gold deposit, South Greenland’, Appl. Earth...surrounding the Main Vein of the Nalunaq gold deposit, South Greenland, Master’s dissertation, University... UK. Roybn, T. 1993. ‘Nalunaq Gold Project. Nanortalik Penninsula SW Greenland’, Internal Report, Nunaoil...A/S. Alteration stages in the Nalunaq Gold Deposit, south Greenland R. M. Bell1,2, J. Kolb1 1 Geological |  | | Report (issue) | | copy.qxp 12/02/08 10:58 Side 1 Minerals in Greenland No. 12 - February 2008 GO_12.qxp:GO-02 copy...copy.qxp 12/02/08 10:59 Side 2 Minerals in Greenland Minerals are an integrated part of the geological...history. The variation and wealth of minerals in Greenland have been significant in rendering the country...mining, and following a brief break since 1990, Greenland now seems to be entering a new phase of mineral...new mines: a gold mine in South Greenland in 2005 and an olivine mine in West Greenland in 2005. From being |  | | Journal (article/letter/editorial) | | is found in contact with sulphide minerals: chalcopyrite and pyrrhotite in the Peridotite Zone; and pyrrhotite...pyrrhotite with pentlandite, pyrite and chalcopyrite in Gabbronorite I of the Lower Banded Series. The...controlled, discordant, and coarse grained carbonate-chalcopyrite veins with albite-ferroan dolomite haloes locally...geometallurgy is not new, but its modern holistic mine value chain application can be considered a critical...provide the practitioner with a means to optimise the mine schedule and metallurgical processes. The geometallurgical |  | Holwell, D. A., Jenkin, G. R. T., Butterworth, K. G., Abraham-James, T., Boyce, A. J. (2013) Orogenic gold mineralisation hosted by Archaean basement rocks at Sortekap, Kangerlussuaq area, East Greenland. Mineralium Deposita, 48 (4) 453-466 doi:10.1007/s00126-012-0434-3 | Journal (article/letter/editorial) | | basement rocks at Sortekap, Kangerlussuaq area, East Greenland D. A. Holwell & G. R. T. Jenkin & K. G. Butterworth...Sortekap in the Kangerlussuaq region of east Greenland, 35 km north–northeast of the Skaergaard Intrusion...mineralisation in the metamorphic basement rocks of east Greenland. The mineralisation can be classified as orogenic...together with arsenopyrite and minor pyrite and chalcopyrite in thin alteration selvages in the immediate...exploration in the underexplored area of east Greenland between 62 and 69°N, where other, similar supracrustal |  | | Conference Proceedings (Volume) | | Cover photograph: View of the Aitik open pit copper mine in the very north of Sweden. Mining operations started...The Platinova Reef, Skaergaard Intrusion, East Greenland: an example of the formation of low volume, high...Various alteration stages in the Nalunaq gold deposit, south Greenland .................................processes in the orogenic gold deposit of the Pampalo mine, Hattu schist belt, eastern Finland . . ..........hosted Amphibolite Ridge gold occurrence in south Greenland ............................................. |  | | Journal (article/letter/editorial) | | with inclusions of pyrrhotite, native gold, chalcopyrite, sphalerite and folded sedimentary matrix; (5)...granular pyrite in association with quartz, rutile, chalcopyrite and rare arsenopyrite; (4) syntectonic euhedral...subhedral pyrite with inclusions of pyrrhotite and chalcopyrite; (5) subhedral, corroded and/or euhedral py5...inclusions of rutile, gold tellurides, native gold, chalcopyrite, sphalerite, fahlores and galena in association...quartz-magnetite, quartz-pyrite-molybdenite-chalcopyrite with the bulk of the contained gold, quartz |  | | Journal (article/letter/editorial) | | (possibly syngenetic) generation of pyrite and chalcopyrite mineralization occurs in the supracrustal units...KRISTER SUNDBLAD deposit. The ore consists of chalcopyrite, pyrite, and pyrrhotite, native gold, and several...ppm Au (Wanhainen et al., 1999). Disseminated chalcopyrite, pyrite, pyrrhotite, and native gold are hosted...gold from the massive pyrite-sphaleritegalena-chalcopyrite ore in Falun as a byproduct of the copper production...to 1860, but after 1863, gold-rich parts of the mine (the so-called “Östra Hårdmalmerna”) were discovered |  | | Report (issue) | | Tungsten potential in Greenland No. 25 - February 2014 GEOLOGY AND ORE 25 / 2014 Tungsten potential...potential in Greenland Tungsten-associated mineralising systems are evident in central East and South Greenland...Greenland and present in several other regions of Greenland. This is one of the conclusions from a workshop...potential in Greenland’ was arranged by the Geological Survey of Denmark and Greenland (GEUS) and the...tungsten deposits in the top 1 km of the crust in Greenland and to rank the most prospective areas. The procedures |  | | Journal (article/letter/editorial) | | Palaeoproterozoic Ketilidian Orogen, southeastern Greenland: Evidence from the geochemistry of mafic to intermediate...Palaeoproterozoic Ketilidian Orogen, southeastern Greenland: Evidence from the geochemistry of mafic to intermediate...Palaeoproterozoic Ketilidian Orogen, southeastern Greenland: Evidence from the geochemistry of mafic to intermediate...Shaanxi, China Geological Survey of Denmark and Greenland, Øster Voldgade 10, 1350 Copenhagen d Jo K...Archaean Thrym Complex, exposed in southeastern Greenland, is part of the North Atlantic Craton. Its southernmost |  | Jiao, Qianqian, Deng, Teng, Wang, Lixing, Xu, Deru, Chi, Guoxiang, Chen, Genwen, Liu, Meng, Chen, Yansheng, Gao, Yiwen, Zou, Shaohao (2017) Geochronological and mineralogical constraints on mineralization of the Hetai goldfield in Guangdong Province, South China. Ore Geology Reviews, 88. 655-673 doi:10.1016/j.oregeorev.2017.03.002 | Journal (article/letter/editorial) | | 2) the 45 Nalunaq Palaeoproterozoic shear zone-hosted gold deposit in south Greenland which has a ...include native gold, pyrite, pyrrhotite and 245 chalcopyrite, with minor arsenopyrite, galena and sphalerite...sulfide minerals 251 (pyrite, pyrrhotite, chalcopyrite, arsenopyrite, galena, and sphalerite) intergrown...pyrite, hexagonal pyrrhotite (Fig. 285 8a), chalcopyrite, and arsenopyrite (Figs. 6l and 8b). Individual...minor 300 sphalerite (Figs. 8m–n), galena, chalcopyrite and monoclinic pyrrhotite. The sphalerite grains |  | | Journal (article/letter/editorial) | | related to the nugget effect during the mine value chain Stage of mine value chain Challenge Exploration/evaluation...north-ore drive on the 549 m level. (B) Imperial Gold Mine, Charters Towers, Australia. Photograph of west...Production costs can be between 40 and 70% of the mine site revenue, thus even a 15% decrease in grade...understanding and reporting of grade uncertainty through the mine development chain is clearly a key issue for any...line with the expected long-term average from the mine of between 7?5 and 8?5 g/t Au. The results achieved |  | | Journal (article/letter/editorial) | | of the flat-topped hills in the vicinity of the mine are believed to be remnants of sheets of travertine...sufficiently frequent that efforts were made to mine them in their own right. (Remember that much of...University of Edinburgh, Scotland A detailed analysis of mine plans and grade data, building on previous work...hydrothermal systems in concentrations that are economic to mine. Small, discrete grains of gold can be readily extracted...2002, 653–62. 4. Lowther J. M. et al. The Galmoy mine: some geological aspects of development from 1995 |  | Dominy, Simon, Platten, Ian, Glass, Hylke, Purevgerel, Saranchimeg, Cuffley, Brian (2021) Determination of Gold Particle Characteristics for Sampling Protocol Optimisation. Minerals, 11 (10) 1109 doi:10.3390/min11101109 | Journal (article/letter/editorial) | | case study from the former high-grade Crystal Hill mine, Australia. Visible gold-bearing laminated quartz...a liberation diameter value of 850 µm for run of mine (ROM) ore. XCT data were integrated with field observations...across 0.7 m of LV, which provides 44 kg across four mine faces. An assay protocol using the PhotonAssay technique...importance of fit-for-purpose sampling throughout the mine value chain; from exploration, through to evaluation...process plants; poor mine-to-mill reconciliation; stalled projects or reduced mine life; and incorrect |
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