 | | Journal (article/letter/editorial) | | Structural Evolution of the Björkdal Gold Deposit, Skellefte District, Northern Sweden: Implications for Early...Luleå University of Technology, SE-971 87 Luleå, Sweden JEANETTE BERGMAN WEIHED,* Department of Earth...Uppsala University, Villavägen 16, SE-752 36 Uppsala, Sweden AND PETER SORJONEN-WARD Geological Survey of...Abstract The Björkdal gold deposit is situated in the eastern part of the Paleoproterozoic Skellefte district...district in northern Sweden. The Skellefte district constitutes a 1.89 to 1.88 Ga volcanic arc with numerous |  | | Report (chapter) | | magmatism and mineralization in the Bothnia–Skellefteå lithotectonic unit, Svecokarelian orogen PIETARI...Luleå, Sweden 3 Department of Earth Sciences, Uppsala University, SE-752 36 Uppsala, Sweden 4 Department...Finland 5 Geological Survey of Sweden, Box 670, SE-751 28 Uppsala, Sweden ‡ Pro Vice-Chancellor, Luleå...*Correspondence: pietari.skytta@utu.fi Abstract: The Bothnia–Skellefteå lithotectonic unit is dominated by turbiditic...90–1.86 Ga predominantly magmatic rocks (the Skellefte–Arvidsjaur magmatic province) are enclosed by |  | | Journal (article/letter/editorial) | | Tourmaline and Scheelite from the Björkdal Gold Deposit, Northern Sweden: Evidence of an Intrusion-Related...Abstract The Björkdal quartz vein-hosted gold deposit is located ~25 km northwest of Skellefte in northern...northern Sweden, within a Paleoproterozoic volcanosedimentary sequence at the margin of a quartz-monzodiorite...(030°– 050°) quartz veins from the eastern open pit within the Björkdal deposit contain quartz, scheelite...calcite, and sulfides, with visible gold. Vein quartz shows undulatory extinction and sutured margins |  | | Journal (article/letter/editorial) | | range of Precambrian geological environments in Sweden and Finland during the last two decades. Under-explored...Saattopora (Finland), Boliden, Ädelfors, and Enåsen (Sweden), and Eidsvoll and Bidjovagge (Norway), is now...Suurikuusikko (Finland), and Björkdal, Åkerberg, Harnäs, and Pahtohavare (Sweden) represent a new generation...interest. One hundred representative deposits in Sweden, Norway, Finland, and Russia are discussed in this...503,700 km2, of which 25.0 percent is located in Sweden, 24.9 percent in northwestern Russia, 23.1 percent |  | Billström, Kjell, Mattson, Benny, Söderlund, Ulf, Årebäck, Hans, Broman, Curt (2012) Geology and Age Constraints on the Origin of the Intrusion-Related, Sheeted Vein-Type Åkerberg Gold Deposit, Skellefte District, Sweden. Minerals, 2 (4) 385-416 doi:10.3390/min2040385 | Journal (article/letter/editorial) | | Sheeted Vein-Type Åkerberg Gold Deposit, Skellefte District, Sweden Kjell Billström 1,*, Benny Mattson 2...Box 50007, Stockholm 10405, Sweden Boliden Mineral AB, Boliden 93681, Sweden; E-Mails: benny.mattson@boliden...Lund University, Sölvegatan 12, Lund SE-22362, Sweden; E-Mail: ulf.soderlund@geol.lu.se Department of...Sciences, Stockholm University, Stockholm 10691, Sweden; E-Mail: curt.broman@geo.su.se * Author to whom...Early Proterozoic (~1.9 Ga) Skellefte mining district in northern Sweden hosts abundant base metal deposits |  | | Report (chapter) | | Introduction to the lithotectonic framework of Sweden and organization of this Memoir MICHAEL B. STEPHENS...SE-971 87 Luleå, Sweden michael@stephens.se Abstract: The solid rock geology of Sweden comprises three...Neoarchean magmatic rocks in the Fennoscandian Shield, Sweden used to generate the diagrams that illustrate the...solid rock beneath Quaternary drift on land in Sweden (79%). These rocks belong to the western part of...mass inside scattered outliers onshore in central Sweden and in larger outliers offshore to the east; Cambrian–Paleogene |  | | Journal (article/letter/editorial) | | Iceland, Sea-floor massive sulphide deposits, Norway, Sweden, Finland and Russia. A 1:10,000,000 scale map of...features of the territory, followed by a brief mining history (including the famous 1898 photograph of...(Mo), followed by the equally quite famous in the mining and exploration community, Cantung and Mactung...The same author follows with a brief history of mining and a description of the ca. 3.7 Ga Isua Algoma-type...begins with an Introduction on the geology and mining history of Norway by Rognvald Boyd. Peter Ihlen |  | Bauer, Tobias E., Skyttä, Pietari, Hermansson, Tobias, Allen, Rodney L., Weihed, Pär (2014) Correlation between distribution and shape of VMS deposits and regional deformation patterns, Skellefte district, northern Sweden. Mineralium Deposita, 49 (5) 555-573 doi:10.1007/s00126-013-0503-2 | Journal (article/letter/editorial) | | and regional deformation patterns, Skellefte district, northern Sweden Tobias E. Bauer & Pietari Skyttä...Berlin Heidelberg 2014 Abstract The Skellefte district in northern Sweden is host to abundant volcanogenic...of the volcanic stratigraphy. Subsequently, the district was subjected to deformation (D2) during crustal...comparison with undeformed equivalents in the Hokuroko district, Japan allow an estimation of apparent strain... Luleå University of Technology, 971 87 Luleå, Sweden e-mail: tobias.bauer@ltu.se P. Skyttä : T. Hermansson |  | | Journal (article/letter/editorial) | | estimation of undiscovered VMS deposits in Skellefte district (Sweden) Emmanuel John M. Carranza a,⁎, Martiya... The Netherlands Geological Survey of Sweden, Uppsala, Sweden a r t i c l e i n f o Article history:...of undiscovered VMS endowment in the Skellefte district (Sweden). The results of analyses of the spatial...geological controls on VMS mineralization in the district, and we used them to define spatial recognition...map of prospective areas occupying 15% of the district and having fittingand prediction-rates of 100% |  | Olivo, G. R., Isnard, H., Williams-Jones, A. E., Gariepy, C. (2007) Pb ISOTOPE COMPOSITIONS OF PYRITE FROM THE C QUARTZ-TOURMALINE VEIN OF THE SISCOE GOLD DEPOSIT, VAL D'OR, QUEBEC: CONSTRAINTS ON THE ORIGIN AND AGE OF THE GOLD MINERALIZATION. Economic Geology, 102 (1) 137-146 doi:10.2113/gsecongeo.102.1.137 | Journal (article/letter/editorial) | | 137–146 Pb ISOTOPE COMPOSITIONS OF PYRITE FROM THE C QUARTZ-TOURMALINE VEIN OF THE SISCOE GOLD DEPOSIT, VAL...3P8 Abstract The Siscoe mine was one of the richest in the Val d’Or mining camp, producing 27.5 tonnes...silver from 1929 to 1949. The C quartz-tourmaline vein at the Siscoe mine, which is the youngest auriferous...regional foliation (S2), and several auriferous quartz-carbonate veins, and is interpreted to be a shear...hydrothermal pyrite separates taken from the C quartz-tourmaline vein and its wall rock. Pyrite is abundant |  | Mercier-Langevin, Patrick, McNicoll, Vicky, Allen, Rodney L., Blight, James H. S., Dubé, Benoît (2013) The Boliden gold-rich volcanogenic massive sulfide deposit, Skellefte district, Sweden: new U–Pb age constraints and implications at deposit and district scale. Mineralium Deposita, 48 (4) 485-504 doi:10.1007/s00126-012-0438-z | Journal (article/letter/editorial) | | deposit, Skellefte district, Sweden: new U–Pb age constraints and implications at deposit and district scale...altered quartz and feldspar porphyritic rhyolite in the deposit footwall in the volcanic Skellefte group...(1) volcanism and hydrothermal activity in the Skellefte group were initiated Editorial handling: F. Tornos...considered to be the onset of volcanism in the Skellefte group; (2) the volcano-sedimentary succession...of the Skellefte district; and (3) an early (synvolcanic) deformation event in the Skellefte group is |  | | Journal (article/letter/editorial) | | start up, because of faulty resource models and mine plans based on poor, or non-existent, geological...models. © 2016 Institute of Materials, Minerals and Mining and The AusIMM Published by Taylor & Francis on...tend to evolve from early carbonate-, to later, quartz-dominated types. In detail, gold frequently occurs...Some of the largest gold deposits, such as Björkdal in Sweden, are orogenic in style, but gold is controlled...lithology change. The competent granodiorite at Björkdal occurs immediately beneath a ductile marble. Vein |  | | Corporate Document | | 3 December 2003 Fennoscandian Exploration and Mining 2003 Rovaniemi, Finland December 2003 GTK CONTENTS...3.3.2 Pirilä, Rantasalmi 4. SWEDEN 4.1 Aitik 4.2 Pahtohavare 4.3 Björkdal 4.4 Åkerberg 4.5 Nautanen, Gällivare...described in this paper. In addition, some samples from Sweden, Czech Republic, Russian Far East, Ukraine, and...alteration, quartz-carbonate veins and intense ductile deformation. Mineral assemblage: quartz - K feldspar...granodioritic mineral assemblage due to alteration: quartz - albite - muscovite - biotite - K feldspar - tourmaline |  | | Book | | Centre of Advanced Mining and Metallurgy Luleå University of Technology Luleå Sweden ISSN 2365-0559 Mineral...acknowledged with the third Fennoscandian Exploration and Mining Special Award for his outstanding lifetime contributions...59 73 The Fennoscandian Shield 5 The Skellefte District . . . . . . . . . . . . . . . . . . . . ...established cover four major mineral belts in Europe: Skellefte-Vihanti-Pyhäsalmi in Fennoscandia, Forsudetic...at visualizing the geological evolution of the district. 3-D predictivity maps are also presented using |  | | Journal (volume) | | enrichment, epigene processes, Precambrian , Finland, Sweden, Norway, Canada, Australia Pekka A. Nurmi: Geological...Finland , Bulletin 351 from typical lodes either by mine geologists or the authors. All sampies were to be...number of gold mines: Enäsen (in 1984) and Björkdal (1988) in Sweden; as weIl as Bidjovagge (1985) in Norway;...Svecofennian complex in southwestern Finland and southern Sweden (Fig. 1). Gold mineralization in the Archean greenstone... Sampled for Ihls study Oth er -tr Operat ing mine Fig. 1. Major geologieal provinees and loeation |  | | Journal (article/letter/editorial) | | Stachel and coworkers18) and the diamonds from Premier mine in South Africa, which are particularly beautiful...The youngest are E-type diamonds from the Orapa mine, Botswana, at 990 m.y.,14 the oldest the 3300-m...perovskite-structured MgSiO3 and CaSiO3, or corundum or quartz (once stishovite). Note that ferropericlase without...clinopyroxenites through potassic melasyenites to quartz-syenites. Compositions at Loch Borralan also include...giving the 1–3 wt% Nb2O5 normally required for a mining operation. During these latter stages, pyrochlore |  | | Journal (article/letter/editorial) | | History, P.O. Box 50 007, SE-104 05 Stockholm, Sweden b c a r t i c l e i n f o Article history: Received...Somero-Tammela gold zone is closely related to quartz veins and controlled by WSW–ENE to SW–NE trending...gold-bearing quartz vein with the youngest zircon rim of 1832 ± 15 Ma give a maximum age of quartz vein emplacement...1786 ± 7 Ma mean 207 Pb/206 Pb age of a pegmatitic quartz-feldspar dyke providing a minimum age for mineralization...4 ± 5.4 Ma 39 Ar–40 Ar age of hornblende from a quartz vein. 1.78 and 1.76 Ga 39 Ar–40 Ar biotite cooling |  | | Journal (issue) | | Silviu UDUBAȘA, Gheorghe UDUBAȘA Keeping alive the mining tradition/heritage: the museum mines and geoparks...Mircea GEORGESCU The sustainable development in mining ……………………………………………………….…...................... ...GIS mineral potential modeling in the Skellefte District (Sweden) ……...……………………..................... ...Silviu UDUBAȘA, Gheorghe UDUBAȘA Keeping alive the mining tradition/heritage: the museum mines and geoparks...Mircea GEORGESCU The sustainable development in mining ……………………………………………………….….... 11 Gheorghe ILINCA |  | Cave, Ben J., Pitcairn, Iain K., Craw, Dave, Large, Ross R., Thompson, Jay M., Johnson, Sean C. (2017) A metamorphic mineral source for tungsten in the turbidite-hosted orogenic gold deposits of the Otago Schist, New Zealand. Mineralium Deposita, 52 (4) 515-537 doi:10.1007/s00126-016-0677-5 | Journal (article/letter/editorial) | | scheelite from late-metamorphic veins at the Macraes Mine, the latter of which is enriched in REEs, Y and...Sciences, Stockholm University, 10691 Stockholm, Sweden 3 Geology Department, University of Otago, PO... including the currently producing Macraes gold mine. A full range of metamorphic grades is exposed in...place concurrent with the recrystallisation of quartz, calcite and the breakdown of organic matter, with...Terrane metasediments are typically composed of quartz, albite, K-mica, chlorite, prehnite, pumpellyite |  | | Journal (article/letter/editorial) | | his suite of compositional data from Tunaberg, Sweden, supported the idea of a single solid-solution...documentation of BixTey compounds in Tunaberg, Sweden, and the earlier work of Cabri & Laflamme (1976)...small Au–Ag–Cu–Te–Se deposit of Glava, Värmland, Sweden (Oen & Kieft 1984), in which it is the most common...the Glava Au–Ag–Cu–Te–Se deposit, southcentral Sweden. Tbs: tellurobismuthite, Hs: hessite, Pz: petzite...native bismuth (Bi) and galena (Gn) from the Clogau mine, Dolgellau gold belt, North Wales, U.K. [Section |  | Goldmann, Simon, Melcher, Frank, Gäbler, Hans-Eike, Dewaele, Stijn, Clercq, Friso, Muchez, Philippe (2013) Mineralogy and Trace Element Chemistry of Ferberite/Reinite from Tungsten Deposits in Central Rwanda. Minerals, 3 (2) 121-144 doi:10.3390/min3020121 | Journal (article/letter/editorial) | | Abstract: Tungsten mineralization in hydrothermal quartz veins from the Nyakabingo, Gifurwe and Bugarama...Burundi) and is generally found in hydrothermal quartz vein deposits. Along the “tungsten belt” in central...central Rwanda, tungsten mineralization is hosted by quartz veins and is often present in the particular form...hydrothermal deposition of the tungsten minerals in the quartz veins [2,3,5,10–13], and the anomalous high tungsten...[1] and several tungsten deposits in the Kigezi district in southwest Uganda (e.g., Ruhizha, Nyamalilo |  | Fu, Yu, Sun, Xiaoming, Zhou, Haoyang, Lin, Hai, Jiang, Liyi, Yang, Tianjian (2017) In-situ LA-ICP-MS trace elements analysis of scheelites from the giant Beiya gold–polymetallic deposit in Yunnan Province, Southwest China and its metallogenic implications. Ore Geology Reviews, 80. 828-837 doi:10.1016/j.oregeorev.2016.08.030 | Journal (article/letter/editorial) | | mineral in various hydrothermal deposits, such as D quartz vein-, skarn- and porphyry-type deposits (Ghaderi...southeastern part of the ACCEPTED MANUSCRIPT mining area, the Lower Triassic Qingtianbao Formation...alkaline rocks include (quartz) syenite-, SC R biotite-K-feldspar- and quartz-albite porphyries (Xu et...stages: (1) prograde skarn, (2) retrograde skarn, (3) quartz-sulfide, and (4) supergene stage. Prograde skarn...occurred during the late retrograde stage. The quartz-sulfide stage is featured by the mineralization |  | Graupner, Torsten, Niedermann, Samuel, Rhede, Dieter, Kempe, Ulf, Seltmann, Reimar, Williams, C. Terry, Klemd, Reiner (2010) Multiple sources for mineralizing fluids in the Charmitan gold(-tungsten) mineralization (Uzbekistan) Mineralium Deposita, 45 (7) 667-682 doi:10.1007/s00126-010-0299-2 | Journal (article/letter/editorial) | | assemblages present within the Charmitan gold(-tungsten) quartz-vein mineralization have been investigated for...reconstruction of the paragenetic relationships of quartz, scheelite, sulphides and native gold within the...Erlangen, Germany ore-forming fluids. The vein quartz is classified into four generations based on microscopic...microscopic and cathodoluminescence investigations. Quartz I shows intense brittle deformation as associated...Charmitan gold deposit in the Nuratau Mountains gold district in Western Uzbekistan (South Tien Shan orogenic |  | Zhang, Zhiyuan, Xie, Guiqing, Mao, Jingwen, Liu, Wengang, Olin, Paul, Li, Wei (2019) Sm-Nd Dating and In-Situ LA-ICP-MS Trace Element Analyses of Scheelite from the Longshan Sb-Au Deposit, Xiangzhong Metallogenic Province, South China. Minerals, 9 (2). 87pp. doi:10.3390/min9020087 | Journal (article/letter/editorial) | | commonly present in stibnite, pyrite, calcite, and quartz veins, indicating that Sch2 is later than Sch1...absence of intrusion within the mining district [28]. within the mining district [28]. Figure 1. (a) Tectonic...constrained the chronology of the Longshan Sb-Au deposit. Quartz fluid inclusion Rb-Sr and pyrite Re-Os studies...mineralized veins cutting granite porphyries and quartz porphyries are observed in the Fuzhuxi and Liaojiaping...Sb-Audeposit deposit(3.7 (3.7 Mt Mt @4.5 @4.5 wt. % two mining The Longshan % Sb Sb and and 4.6 4.6 g/t g/tAu |  | Song, Guoxue, Cook, Nigel J., Li, Guangming, Qin, Kezhang, Ciobanu, Cristiana L., Yang, Yueheng, Xu, Yingxia (2019) Scheelite geochemistry in porphyry-skarn W-Mo systems: A case study from the Gaojiabang Deposit, East China. Ore Geology Reviews, 113. 103084 doi:10.1016/j.oregeorev.2019.103084 | Journal (article/letter/editorial) | | Exposed sedimentary rocks in the Gaojiabang ore district include Cambrian, Ordovician, and Silurian rocks...intrusion that occupies the eastern part of the ore district (Fig. 2a). The Huangboling Formation is the main...4b). Retrograde assemblages comprise tremolite, quartz, fluorite, epidote, calcite, chlorite, hornblende...banded and massive skarns, sometimes coexisting with quartz within veins (Fig. 4c, f, i) that crosscut the...and scheelite; and veins (Fig. 4a, c-e, g, h). Quartz-vein type W-Mo ores are mostly Mo-dominant, and |
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