 | | Report (issue) | | Geological Survey of Finland Special Paper 35 Boris Saltikoff, Kauko Puustinen and Mikko Tontti Metallogenic...deposits in Finland Explanation to the Metallogenic Map of Finland Geological Survey of Finland Espoo 2006...metallic mineral deposits in Finland – Explanation to the Metallogenic Map of Finland. Geologian tutkimuskeskus...tutkimuskeskus – Geological Survey of Finland, Special Paper 35. 66 pages, 19 figures, 2 tables. This paper contains...contains explanations to the Metallogenic Map of Finland 1 : 1 000 000 (Saltikoff et al. 2002). The aim |  | | Journal (volume) | | Geological Survey of Finland Bulletin 305 The metallogeny of Finland by Aimo Mikkola Geologinen tutkimuslaitos.... Geological Survey of Finland, Bulletin 305 THE METALLOGENY OF FINLAND by AIMO MIKKOLA with 9 fig...1980 Mikkola, Aim o 1980. The metallogeny of Finland. Ceological Sllrvey land, Btilletin 305. 22 pages...metallogenic epochs and types of mineral deposits in Finland are discussed. Thc Archean iron and nickel-copper... minera l deposits, metallogeny, Precambrian, Finland. Pro]. Aimo Mikkola, Helsi"ki U"iversity Fin/and |  | | Journal (volume) | | Geological Survey of Finland 2018 Improving the environmental properties, utilisation potential and... Geological Survey of Finland, Bulletin The Bulletin of the Geological Survey of Finland publishes the results...performance of arsenic-containing tailings. SURVEY OF FINLAND Bulletin 408 Improving the environmental properties...prediction of mining wastes. Geological Survey of Finland, Bulletin 408, 108 pages, 50 figures and 17 tables...quality measured from waste facilities at Finnish mine sites. In addition, the use of reactive transport |  | | Book | | Mineral Deposits of Finland Edited by Wolfgang D. Maier Raimo Lahtinen Hugh O’Brien AMSTERDAM • BOSTON...Geological Survey of Finland, Espoo, Finland I. Haapala University of Helsinki, Helsinki, Finland T. Halkoaho...Geological Survey of Finland, Kuopio, Finland E. Hanski Oulu Mining School, Oulu, Finland A. Hartikainen Geological...Geological Survey of Finland, Kuopio, Finland C. Hartshorne AngloAmerican Exploration, London, UK T....Mawson Resources, Finland E. Heilimo Geological Survey of Finland, Kuopio, Finland P. Heino Yara Suomi |  | | Journal (article/letter/editorial) | | pages 1915–1918, 2003 Iron-rich precipitates in a mine drainage environment: Influence of pH on mineralogy...sulfide-rich lignite seam exposed in an abandoned mine in the Czech Republic show marked variations in...alkaline (pH 8.3) waters that have not been affected by mine drainage, the effluent pH rises to 7.3, the color...of the most common secondary minerals produced by mine drainage is complicated by their inherently poor...8:51 AM 1916 MURAD AND ROJÍK: INFLUENCE OF PH ON MINE DRAINAGE PRECIPITATE MINERALOGY FIGURE 1. Geological |  | | Journal (article/letter/editorial) | | Complex: the main mass and its differences on the north and south ranges, the offset dikes, the very important...stay relevant in today’s mining environment, the mine geologist needs to pay particular attention to these...would be an excellent purchase for a newly graduated mine or exploration geologist and a worthwhile reference...Jensen Juneau, Alaska, USA Mineral Deposits of Finland. Wolfgang D. Maier, Raimo Lahtinen, and Hugh O’Brien...even of Kylylahti, the only currently operating mine in the Outokumpu region. After all, the discovery |  | | Journal (article/letter/editorial) | | Complex: the main mass and its differences on the north and south ranges, the offset dikes, the very important...stay relevant in today’s mining environment, the mine geologist needs to pay particular attention to these...would be an excellent purchase for a newly graduated mine or exploration geologist and a worthwhile reference...Jensen Juneau, Alaska, USA Mineral Deposits of Finland. Wolfgang D. Maier, Raimo Lahtinen, and Hugh O’Brien...even of Kylylahti, the only currently operating mine in the Outokumpu region. After all, the discovery |  | | Journal (article/letter/editorial) | | Complex: the main mass and its differences on the north and south ranges, the offset dikes, the very important...stay relevant in today’s mining environment, the mine geologist needs to pay particular attention to these...would be an excellent purchase for a newly graduated mine or exploration geologist and a worthwhile reference...Jensen Juneau, Alaska, USA Mineral Deposits of Finland. Wolfgang D. Maier, Raimo Lahtinen, and Hugh O’Brien...even of Kylylahti, the only currently operating mine in the Outokumpu region. After all, the discovery |  | | Journal (article/letter/editorial) | | c t Schwertmannite (SHM) precipitated from acid mine drainage often contains high levels of As(III)....after 120 days with traces of ferrihydrite and goethite in As(III)-free specimens, which was more prominent...75) that is abundant in oxidized and diluted acid mine-drainage (AMD) affected waters (Bigham et al., 1990)...2000). Upon ageing it typically transforms into goethite (a-FeOOH), the rate transformation increasing...(2005) observed complete transformation of SHM to goethite in deionized water at pH 7.2 after 100 days. In |  | | Journal (article/letter/editorial) | | imre region, Mátra Mountains, Hungary. The last mine was closed in 1986 without remediation. In 2006...abandoned shafts and adits still releasing acid mine-drainage owing to the large amount of oxidizing...opportunity for the systematic sampling of the products of mine-waste alterations. One of these accessible “natural...plumbojarosite, anglesite, quartz, the feldspars, goethite, hematite, pickeringite, alunogen, epsomite, hexahydrite...form euhedral crystals in the 0.1–3 mm range. Goethite is superparamagnetic and only identified by Mössbauer |  | | Journal (article/letter/editorial) | | supersaturated with respect to schwertmannite and also goethite and jarosite, but undersaturated with respect...deviates slightly into the stability field of goethite rather than jarosite. This suggests that the aquatic...eventually lead to the formation of jarosite instead of goethite. INTRODUCTION Microbiologically induced iron... 1986) and ironoxides and iron-sulfates in acid mine drainages (Clarke et al. 1997; Bigham and Nordstrom... Among these geochemical environments, the acid mine drainages have been most extensively investigated |  | | Conference Proceedings (Volume) | | Stockholm University, the Geological surveys of Finland and Norway, Luleå University of Technology and...photograph: View of the Aitik open pit copper mine in the very north of Sweden. Mining operations started in...modelling for VMS exploration in the Pyhäsalmi district, Central Finland ..................................ore body structural complexities: KDC East Gold Mine, South Africa . . ...............................gold exploration targeting in Wadi Halfa district, North Africa ........................................ |  | | Journal (article/letter/editorial) | | Dingwell Keywords: Schwertmannite Arsenite Acid mine drainage Surface precipitation Sorption isotherms...Iron oxides including ferrihydrite, hematite and goethite are predominant constituents in natural systems...reported as a brownish yellow precipitate in acid mine drainage precipitates (Bigham et al., 1990, 1994)...amounts of arsenate during its precipitation in acid mine drainage (AMD) areas and the arsenate retention...arsenopyrites enriched mine dumps simultaneously with precipitation of schwertmannite in acid mine discharges (Carlson |  | Miyata, Naoyuki, Takahashi, Ayato, Fujii, Tatsuo, Hashimoto, Hideki, Takada, Jun (2018) Biosynthesis of Schwertmannite and Goethite in a Bioreactor with Acidophilic Fe(II)-Oxidizing Betaproteobacterium Strain GJ-E10. Minerals, 8 (3) 98 doi:10.3390/min8030098 | Journal (article/letter/editorial) | | minerals Article Biosynthesis of Schwertmannite and Goethite in a Bioreactor with Acidophilic Fe(II)-Oxidizing...Abstract: Iron oxide minerals, schwertmannite and goethite, which are naturally occurring in acidic environments...microorganisms has been investigated, little is known about goethite biosynthesis under acidic conditions. To examine...production of goethite, and 90% pure goethite was obtained at 37 ◦ C and pH 3.5. The goethite phase was nano-sized...nanostructured goethite as well as schwertmannite. Keywords: acidophilic iron-oxidizing bacterium; goethite; metal |  | | Journal (article/letter/editorial) | | leading to As(III)-enriched precipitates around acid mine drainage environments that may become exposed to...Fe(II)-catalyzed pathway that generated lepidocrocite and goethite at pH 6 and 6.9 in the presence of 1 mM Fe(II)...SHM contained As(III) and platy for pure SHM. Goethite had a poor degree of crystallinity in As(III)...Keywords- schwertmannite, acid mine drainage, lepidocrocite, goethite, arsenic, Fe(II) catalyzed transformation...SO42- and Fe3+-enriched acidic water around acid mine drainage (AMD) localities (Bigham et al., 1990, |  | | Journal (article/letter/editorial) | | materials, and catalysers enhance the interest of mine ferric oxyhydroxysulphates [6–8]. Precipitation...facilitate the adsorption of heavy metals in acid mine drainage (AMD) systems [10] because of its high...pollutants in natural waters. Although remediation of mine sites is an engineering concern, designing a remediation...pointed that any other crystalline phases (hematite, goethite, etc.) have not been identified in the precipitates...very early stages growth. The EDS both phases, to goethite over the pH of 2–6. Caraballo al. [33] presented |  | | Journal (article/letter/editorial) | | mechanisms of schwertmannite transformation to goethite and hematite under alkaline conditions Lois E...Abstract The transformation of schwertmannite to goethite and/or hematite in high pH solutions was studied...hematite and goethite occurred via intermediate ferrihydrite. At temperatures ≤80 °C goethite was the only...crystallization product, while at temperatures >80 °C goethite and hematite crystallized almost simultaneously...in which goethite transformed to hematite. The activation energies of nucleation for goethite and hematite |  | Basson, I.J., McCall, M.-J., Andrew, J., Daweti, E. (2018) Structural controls on mineralisation at the Namib Lead and Zinc Mine, Damara Belt, Namibia. Ore Geology Reviews, 95. 931-944 doi:10.1016/j.oregeorev.2018.03.028 | Journal (article/letter/editorial) | | Controls on Mineralisation at the Namib Lead and Zinc Mine, Damara Belt, Namibia I.J. Basson, M.-J. McCall...Controls on Mineralisation at the Namib Lead and Zinc Mine, Damara Belt, Namibia, Ore Geology Reviews (2018)...Controls on Mineralisation at the Namib Lead and Zinc Mine, Damara Belt, Namibia I.J. Bassona,c,*, M.-J. McCalla...Gardner Williams Ave, Somerset West, South Africa b North River Resources, 84 Dr Frans Indongo Street, Windhoek...Africa Abstract The Namib Lead and Zinc (Pb-Zn) Mine is hosted within the Karibib Formation of the Swakop |  | | Journal (article/letter/editorial) | | molecules [Fe(H2O)6]3+ that crystalize as akaganéite, goethite (α-FeOOH) or hematite (α-Fe2O3) (Cai et al. 2001;...pH 3 is generally accompanied by maghemite and goethite that both frequently convert to hematite. Synthesis...Akaganéite can also be a precursor for nanophase goethite (Regenspurg et al. 2004), hematite (Glotch and...Cl− in akaganéite, followed by transformation to goethite and magnetite (Ahn et al. 2012). Réguer et al...sulfate levels (Bigham and Nordstrom 2000) and goethite and ferrihydrite are more stable under more neutral |  | | Report (chapter) | | properties. INTRODUCTION TO ACID SULFATE ENVIRONMENTS Mine drainage The best known examples of acid sulfate...may be as many as 500,000 inactive or abandoned mine sites in the United States alone (Lyon et al. 1993)...been seriously damaged by mine effluents. Contamination of natural waters by mine drainage has killed enormous...be unfit for recreational activities. Most acid mine waters have pH values in the range of 2 to 4 (Nordstrom... Bigham & Nordstrom Plumlee et al. 1999). Acid mine drainage occurs when acid production exceeds the |  | | Journal (article/letter/editorial) | | predominate on the smoothly dipping flanks to the north, whereas pillow mounds and basaltic rock fragments...Fe–Mn coating. (b) mound sample; note brownish goethite and jarosite encrustations on the surface; vugs...minerals which are found to be jarosite and/or goethite under optical b ccp sp2 sp1 sil sil sfs...454/2a. (b) Framboidal pyrite (py-framb) within goethite (gt) and jarosite (jar) in iron rich mound sample...Smith and Huston, 1992; Zaw et al., 1999), Pyhäsalmi (Finland; Osorio and Mäki, 2003), Tynagh (Ireland; |  | | Journal (volume) | | Central Finland by Kimmo Virtanen Geologian tutkimuskeskus Espoo 1994 Geological Survey of Finland, Bulletin...PRECIPITATES IN MIRES OF THE RUUKKI-VIHANTI AREA, CENTRAL FINLAND by KIMMO VIRTANEN with 51 figures and 1 1 tab1es...preeipitates in mires ofthe Ruukki-Vihanti area, Cenrral Finland. Ceological Stllve,' ofFinlund, Bullelin 375, 69...and their oxidation products. In so me plaees in Finland they are found as interlayers in peat. All the...more common in the study ar-ea than elsewhere in Finland, ar'e not velY common there either. AU the major |  | | Book | | Painopaikka | Printing house: Lönnberg Print & Promo, Finland ISBN 978-952-217-253-2 (sid.) ISBN 978-952-217-254-9...Geological Survey of Finland Espoo 2017 SUOMEN KORUKIVET Gemstones of Finland Kari A. Kinnunen Risto... In addition, the rock types commonly used in Finland as gemstones, are now documented in detail. Photography...demonstrate that more gemstones are known from Finland than from other Nordic countries.The great activity...gemstones and precious stones Thulite of the Talvivaara mine . . . . . . . . . . . . . . . . . 196 13 Striped |  | Miot, Jennyfer, Lu, Shipeng, Morin, Guillaume, Adra, Areej, Benzerara, Karim, Küsel, Kirsten (2016) Iron mineralogy across the oxycline of a lignite mine lake. Chemical Geology, 434. 28-42 doi:10.1016/j.chemgeo.2016.04.013 | Journal (article/letter/editorial) | | Iron mineralogy across the oxycline of a lignite mine lake Jennyfer Miot a,⁎, Shipeng Lu b,c,1, Guillaume...Available online 19 April 2016 Keywords: Schwertmannite Mine lake Iron snow STXM HRTEM Iron reducing bacteria...formed in the water column of some acidic lignite mine lakes. We investigated the evolution of Fe mineralogy...place at acid rock or mine drainages (Lu and Wang, 2012) or in acidic lignite mine lakes (Blodau, 2006)...mineralization occurs in acidic lignite mine lakes formed in former coal mine pits (Blodau, 2006; Küsel, 2003) |  | YU, CHANGYUAN, ZHANG, JING, WU, XIAOLEI, LAN, YEQING, ZHOU, LIXIANG (2014) Cr(VI) removal by biogenic schwertmannite in continuous flow column. GEOCHEMICAL JOURNAL, 48 (1) 1-7 doi:10.2343/geochemj.2.0278 | Journal (article/letter/editorial) | | oxyhydroxysulfate, existing mainly in iron- and sulfate-rich mine drainage (Bigham et al., 1990, 1994), acid-sulfate...resulting in the transformation of schwertmannite to goethite (Regenspurg et al., 2004), which also decreases...contaminated soils and natural water such as acidic mine drainage. Thus, we demonstrate the utility of an...formed by bacterial oxidation of Fe(II) in acid mine waters. Geochim. Cosmochim. Acta 54, 2743–2758....Schwertmannite, a new iron oxyhydroxysulfate from Pyhäsalmi, Finland, and other localities. Mineral. Mag. 58, |
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