 | Roberts, M. D., Oliver, N. H. S., Fairclough, M. C., Holtta, P. S., Lahtinen, R. (2003) Geochemical and Oxygen Isotope Signature of Sea-FloorAlteration Associated with a Polydeformed and Highly Metamorphosed MassiveSulfide Deposit, Ruostesuo, Central Finland. Economic Geology, 98 (3) 535-556 doi:10.2113/gsecongeo.98.3.535 | Journal (article/letter/editorial) | | Metamorphosed Massive Sulfide Deposit, Ruostesuo, Central Finland MICHAEL D. ROBERTS,†,* NICHOLAS H.S....RAIMO LAHTINEN Geological Survey of Finland, FIN-02150 Espoo, Finland Abstract Massive sulfide deposits...deposits in the Vihanti-Pyhäsalmi district, central Finland, are hosted by a highly deformed and metamorphosed...rocks (MCOR and FCOR) in the vicinity of the Ruostesuo Zn-Cu deposit define mappable layers with distinctive...least altered metavolcanic rocks and COR rocks at Ruostesuo define three mafic suites (primitive basalts, |  | | Journal (volume) | | Geological Survey of Finland Bulletin 343 Tectono-metamorphic evolution of the Raahe-Ladoga zone Edited...tutkimuskeskus Espoo 1988 Geological Survey of Finland, Bulletin 343 TECTONO-METAMORPHIC EVOLUTION OF...the Raahe-Ladoga zone, eastern Finland. Geological Survey 01 Finland, Bulletin 343. 96 pages, 42 figures...can be divided into two distinct parts. In the north, the culmination of metamorphism was associated...this intrusion stage. The granulite areas in the north are characterized by metamorphic reactions that |  | | Journal (article/letter/editorial) | | mica schists, Puolankajiirvi Formation, Central Finland PEKKA TUISKU’, PIRKKO RUOSTESUO’and ANNA-MAIJA... 90570 Oulu, Finland ‘Department of Chemistry, University of Ouiu, 90570 Oulu. Finland 3Department of...Physics, Unive~ity of Helsinki, 00 170 Helsinki, Finland (Received August 12, 1986; accepted in revisedfirm...example KWAK (19741, INOUE 1639 P. Tuisku, P. Ruostesuo and A.-M. Hiikkinen 1640 and SUWA (1979), HAACK...geobarometer of NEWTONand HASELTON( 1982) and the ilmenite-magnetite oxygen barometer of SPENCERand LINDSLEY(198 |  | | 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 |  | | 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 (article/letter/editorial) | | the Early Proterozoic Puolankajarvi Formation, Finland - II. The pressure-temperature-deformation-composition...University of O h , Linnanmaa, SF-WS70, O h , Finland ABSTRACT The paragenetic relationships between...grid; P-T-D-X path; Puolankajiirvi Formation. Finland; sihnanite; staurolite. INTRODUCTION Thompson...assemblages OCCUJ mixed in the same areas. Tuisku, Ruostesuo & H e e n (1987) interpreted the late events as...these as for earlier assemblages; (4) magnetite-ilmenite oxygen barometry shows increased f4 in late assemblages; |  | | Journal (article/letter/editorial) | | remnant is exposed as a 2 km wide east west striking, north-dipping belt within a terrain dominated by syntectonically...sequence of supracrustal gneisses is cut by several north-east-striking shear zones at Kraaifontein with associated...present. Coarse intergrowths between staurolite and ilmenite occur in places. FIG. 2. Photomicrograph showing...1986b), containing 2.8 wt. % ZnO, and Swartkoppies, north ofGamsberg (A. Willner, pers. comm.). In the latter...of minor rutile in the prograde assemblage and ilmenite in the retrograde assemblage is consistent with |  | Hammerli, Johannes, Spandler, Carl, Oliver, Nicholas H.S., Sossi, Paolo, Dipple, Gregory M (2015) Zn and Pb mobility during metamorphism of sedimentary rocks and potential implications for some base metal deposits. Mineralium Deposita, 50 (6) 657-664 doi:10.1007/s00126-015-0600-5 | Journal (article/letter/editorial) | | lowgrade (∼350–400 °C) greenschist facies rocks in the north and west, to an upper amphibolite facies (∼650–700...staurolite for Zn (ESM Fig. A3). Fe-Ti oxides such as ilmenite also contain high Zn contents (400–4500 μg g−1)...Skarn zonation and fluid evolution in the groundhog mine, central mining district, New Mexico. Econ Geol...evidence for syntectonic mineralisation at the Elura mine, southeastern Australia. Mineral Deposita 25:304–312...sulfide anatexis. J Petrol 48:511–535 Tuisku P, Ruostesuo P, Häkkinen A-M (1987) The metamorphic behaviour |  | | Journal (article/letter/editorial) | | fine-grained sericite), staurolite, andalusite, ilmenite, and graphite. Staurolite, which formed during... 319-327. Interscience,New York. Tuisku, P., Ruostesuo,P., and Hiikkinen, A. (1987) The metamorphic behaviour...mica schists, Puolankajiirvi Formation, central Finland. Geochimicaet CosmochimicaAcra. 51. 1639-1650. |  | | Journal (article/letter/editorial) | | aqueous fluid; hb, hornblende; hem, hematite; ilm, ilmenite; ky, kyanite; law, lawsonite; liq, silicate melt;...2003), spinel–magnetite (White et al., 2002), and ilmenite– hematite (White et al., 2002). Albite, the aluminosilicates...varies between 0.13 and 0.29 for the magnetite–ilmenite-bearing COG. A value towards the lower end of...are cordierite, cummingtonite, garnet, gedrite, ilmenite, muscovite, paragonite, plagioclase, rutile and...involves gedrite, cordierite, plagioclase and ilmenite ([i9]) is calculated to be stable at 6 kbar and |  | Pitra, P., Boulvais, P., Antonoff, V., Diot, H. (2008) Wagnerite in a cordierite-gedrite gneiss: Witness of long-term fluid-rock interaction in the continental crust (Ile d'Yeu, Armorican Massif, France) American Mineralogist, 93 (2) 315-326 doi:10.2138/am.2008.2597 | Journal (article/letter/editorial) | | thin-section. Accessory phases include wagnerite, ilmenite, pyrrhotite, rutile, zircon, monazite, and white...chlorite; cor = corundum; ctd = chloritoid; ilm = ilmenite; ky = kyanite; mu = muscovite; oa = orthoamphibole;...numerous tiny inclusions of biotite, chlorite and ilmenite. Formulae were calculated from stoichiometry to...granoblastic aggregates that include biotite, chlorite, ilmenite and locally quartz. It is frequently found in...found in textural equilibrium with chlorite and ilmenite. Values of XFe increase rimwards from 0.72 to |  | | Journal (article/letter/editorial) | | rims around biotite in the matrix (analysis G5). Ilmenite is close to stoichiometry in samples A and B,...00 (0.00) 0.00 (0.00) 0.00 (0.00) 0.49 (0.02) Ilmenite (3 oxygen, 2 cations) A n=2 (1 s) C n=53 (1 s)...because quartz is in excess in all assemblages. Ilmenite is present but could not be analysed in sample...the standard deviation was not available (e.g. ilmenite , plagioclase ), the error has been D A set to...Ti, Al, Fe, Mn, Mg, Ca, Na and K as rows, and ilmenite, staurolite, kyanite, biotite, chlorite, garnet |  | Driouch, Youssef, Debat, Pierre, Ganne, Jérôme, Béziat, Didier, Kriegsman, Leo M., Martignole, Jacques (2017) The Cordierite-Orthoamphibole Rocks of the Variscan Dome of Gavarnie-GèDre-Héas: The Gedrite of Gèdre (Hautes Pyrénées, France) The Canadian Mineralogist, 55 (2) 245-281 doi:10.3749/canmin.1600032 | Journal (article/letter/editorial) | | garnet (Grt) þ spinel (Spl) þ corundum (Crn) þ ilmenite (Ilm) and sulfides (Sulf), but lacking quartz...partial melting conditions in its central part (north of the Gavarnie and Gèdre valleys; Debat et al...staurolite (St) þ Bt þ Grt þ Ged þ Crd þ Spl þ ilmenite (Ilm) þ Crn (Debat et al. 1971, Driouch 1997)...recognized in the Oam layers of the migmatites. Ilmenite Small grains of Ilm (,0.1 mm) appear in the whole...of the enclave except in domain 1 (Fig. 7A–B). Ilmenite is associated with: (1) Ged and Crd in domain |  | | 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 |  | | Journal (article/letter/editorial) | | Editor: D. Rickard Abstract The Challenger Gold Mine, South Australia, is hosted in granulite-facies...McFarlane et al. / Chemical Geology 243 (2007) 64–89 North America and Australia. If we endeavour to make the...other regions (with the notable exception of Ruostesuo, Finland; Broken Hill, Australia; Renco, Zimbabwe)...(qz), plagioclase (pl), K-feldspar (Kfs), and ilmenite (ilm) with cordierite (crd) typically confined...only sparse pyrrhotite. The relationship of the mine-scale geometry to the regional structural framework |  | | Journal (volume) | | Geological Survey of Finland Bulletin 336 The development of geological sciences in Finland Edited by Heikki... Geological Survey of Finland, Bulletin 336 THE DEVELOPMENT OF GEOLOGICAL SCIENCES IN FINLAND Edited by HEIKKI...Mineral exploration and geologieal surveys in Finland before 1886 ... ... ............. . .. .. . . ...Preeambrian in Finland .... Maunu Härme: The hi story of petrologie study in Finland ....... . ........ Kai Hytönen: The hi story of mineralogy in Finland 1918- 1984 . . ... ... Kalevi Virkkala: History of |  | Palin, R. M., White, R. W., Green, E. C. R., Diener, J. F. A., Powell, R., Holland, T. J. B. (2016) High-grade metamorphism and partial melting of basic and intermediate rocks. Journal of Metamorphic Geology, 34 (9) 871-892 doi:10.1111/jmg.12212 | Journal (article/letter/editorial) | | garnet, biotite, muscovite, quartz, sphene, or ilmenite present at different pressures. The H2 O-saturated...2011); magnetite–spinel (White et al., 2002); ilmenite–hematite (White et al., 2000); C1̄ plagioclase...biotite (bi), chlorite (chl), magnetite (mt), ilmenite (ilm), hematite (hem), plagioclase (pl), K-feldspar...epidote, augite, biotite, muscovite, quartz, and/or ilmenite) correlate well with observations that mineral...–quartz ± epidote, garnet, muscovite, quartz, ilmenite, sphene, H2 O. Epidote–amphibolite-facies assemblages |  | | Journal (volume) | | Geological Survey of Finland, Bulletin 35~~ STRATIGRAPHY ()F THE NORTHERN END lOF TIHE EARLY PROTEROZOIC...and associated gneiss complexes, Finland. Geological Survey of Finland, Bulletin 358, 105 pages, 55 figures...(4) The Korvuanjoki Group is met with only in the north and was deposited unconformably on the Kurkikyla...relic of metapsephites and metapsammites in the north, is included tentatively in the Kaleva tectofacies...lithostratigraphy, Proterozoic, Archaean, Kainuu, Finland Kauko Laajoki, University of Oulu, Department |  | ZHENG, Y. C., GU, Lianxing, TANG, Xiaoqian, WU, Changzhi, LI, Chunhai, LIU, Sihai (2011) Geology and Geochemistry of Highly Metamorphosed Footwall Alteration Zones in the Hongtoushan Volcanogenic Massive Sulfide Deposit, Liaoning Province, China. Resource Geology, 61 (2) 113-139 doi:10.1111/j.1751-3928.2011.00154.x | Journal (article/letter/editorial) | | Province, is located in the Hunbei Archean terrane of North China craton (NCC). The NCC is the largest and oldest...been mined Mine shut down Mine shut down Mine shut down Mine shut down Mine shut down Mine shut down ...small-size tight folds (F1), which plunge to the north at 20 to 30°. D2 resulted in medium- to large-scale...Cu grades (2.51 to 3.50 wt%) are distributed at mine levels above 0 m, whereas those with higher Zn grades...(CDT). No granite intrusions have been found in the mine area. There are, however, numerous diabase dikes |  | | Journal (article/letter/editorial) | | ex~~rnent~ study of Nb and Ta pa~itioning between Z-rich mine& silicate liquids at high pressure and temperature...metamorphic history of granulitic breccias from North Ray crater, Station 11,Apollo 16 131 J.K. RUSSELL...LEINEN:The origin of paleochemical signatures in North Pacific pelagic clays: Partitioning experiments...granitic pegmatites of the Ertij%rviarea, southern Finland ,...._ ..,_,........ ._,, ..,.. ......_..,._.I...chemistry in hematite and goethite from 623 the Apex Mine, Utah, and some new data on germanium in aqueous |  | | 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...classification of ore potential black shales in Finland . . ............................................submarine caldera associated mineralization in north-west Wales .................................. ...hydrothermal vents created by IODP Exp. 331 in the Iheya North field, Okinawa Trough ......................... |  | | Journal (volume) | | »Anvisning pa malm och bergarter uti storfurstendömet Finland», osat I ja II, ilmestyivät vuosina 1824 ja 1825...mineraaleista teoksessaan »Beskrifning öfver de i Finland fun na mineralien>, jonka ensimmäinen painos ilmestyi...our knowledge of the geology and the minerals of Finland has increased tremendously, but the data collected...the need for an index of minerals occurring in Finland and for some source of information on the works...from my post as head of the Geological Survey of Finland, I began to compile a reference work designed to |  | Figueiredo e Silva, Rosaline C., Lobato, Lydia M., Zucchetti, Marcia, Hagemann, Steffen, Vennemann, Torsten (2020) Geotectonic signature and hydrothermal alteration of metabasalts under- and overlying the giant Serra Norte iron deposits, Carajás mineral Province. Ore Geology Reviews, 120. 103407 doi:10.1016/j.oregeorev.2020.103407 | Journal (article/letter/editorial) | | Archean substratum of the Carajás domain to the north, authors offer insights into the ancient craton...pseudomorphs after olivine, together with fine-grained ilmenite. Amygdales are common in volcanic and volcaniclastic...some dusty hematite is also common. Finegrained ilmenite is scattered throughout the groundmass, with local...mafic minerals are replaced mainly by chlorite, ilmenite is surrounded by titanite, whilst hematite and...carbonate, albite and white mica. Sulfides, titanite, ilmenite, zircon, monazite and magnetite are subordinate |  | | Book | | avec l'editeur. Gold-rich specimen fro1n the Don,e Mine, Tim1nins, Ontario that was presented to GSC in...Mineral Deposit Types published by the Decade of North American Geo logy (DNAG), it is in fact very different... may change the para1neters of the mathematical mine n1odel referred to above. Modifications to the 1nine...l-producing mines closed and only one (Voisey's Bay Ni-Cu mine in Labrador) opened. On the brighter side, the potential...Cycle PRODUCTION North America Pangea Rodinia Nuna Kenorland TOTAL RESERVES North America Pangea Rodinia |
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