 | D’Orazio, Massimo, Biagioni, Cristian, Dini, Andrea, Vezzoni, Simone (2017) Thallium-rich pyrite ores from the Apuan Alps, Tuscany, Italy:constraints for their origin and environmental concerns. Mineralium Deposita, 52 (5) 687-707 doi:10.1007/s00126-016-0697-1 | Journal (article/letter/editorial) | | Thallium-rich pyrite ores from the Apuan Alps, Tuscany, Italy: constraints for their origin and environmental...southern sector of the Apuan Alps (AA) massif, Tuscany, Italy, is characterized by the occurrence of a series...marcasite ore samples from other mining districts of Tuscany have been collected in order to compare them with...radiogenic than those from the other deposits from Tuscany. Geochemical data of pyrite ores from AA give new...56126 Pisa, Italy 2 Istituto di Geoscienze e Georisorse, CNR, Via Moruzzi 1, 56124 Pisa, Italy Keywords |  | Jansson, N. F., Erismann, F., Lundstam, E., Allen, R. L. (2013) Evolution of the Paleoproterozoic Volcanic-Limestone-Hydrothermal Sediment Succession and Zn-Pb-Ag and Iron Oxide Deposits at Stollberg, Bergslagen Region, Sweden. Economic Geology, 108 (2) 309-335 doi:10.2113/econgeo.108.2.309 | Journal (article/letter/editorial) | | Sweden Abstract The Stollberg Zn-Pb-Ag and magnetite mining field is located in the Bergslagen region...marble and skarn horizon. Orebodies mainly contain magnetite and combinations of sphalerite, galena, pyrrhotite...elements are highly correlated in skarns, limestone, magnetite mineralization, and variably altered rhyolites...marble- and/or skarn1hosted magnetite deposits, strata-bound apatite-bearing magnetite-hematite deposits, and...and stratifrom hematite-magnetite banded iron formation. The first type has traditionally been divided |  | Frank, Katherine S., Spry, Paul G., Raat, Hein, Allen, Rodney L., Jansson, Nils F., Ripa, Magnus (2019) Variability in the Geologic, Mineralogical, and Geochemical Characteristics of Base Metal Sulfide Deposits in the Stollberg Ore Field, Bergslagen District, Sweden. Economic Geology, 114 (3) 473-512 doi:10.5382/econgeo.4646 | Journal (article/letter/editorial) | | south-central Sweden, a polydeformed ca. 1.9 Ga igneous province dominated by bimodal felsic and mafic rocks. Sulfide...metavolcanic (felsic-dominated)metasedimentary province on the Fennoscandian Shield in south-central Sweden...pyrrhotite, chalcopyrite, arsenopyrite, and magnetite) and magnetite bodies spatially related to skarn and...Arvanitidis and Rickard, 1981; Selinus, 1982, 1983; Ripa, 1988, 1994, 1996, 2012; Beetsma, 1992; Jansson...bulk rock chemical data of Selinus (1982, 1983), Ripa (2012) recognized a variety of different altered |  | | Journal (article/letter/editorial) | | Fe-Pb-Zn-Mn(-Ag) deposit, Bergslagen, Sweden M. Ripa Geological Survey of Sweden, Box 670, S-751 28 Uppsala...stratigraphically below and within the ore horizon (Ripa 1988). The altered footwall rocks, as well as the...some important sulphide ores; e.g. in the Falun mine. Geochemical studies of supracrustal and intrusive...represents the general traits of the entire ore-field (Ripa 1988). Strata strike to the north with steep easterly...High-resolution TEM studies of the gedrites (Ferrow and Ripa 1989, 1991) reveal that they are intergrowths of |  | | Journal (article/letter/editorial) | | (Weibull 1884 for magnetite, Weibull 1885 for carbonate, Frietsch 1982b for magnetite and sphalerite, Damman...sketch map of the Väster Silvberg ore field (af- ter Ripa 1988) with the mines (black squares) from which...and volcanic material (Geijer & Magnusson 1944, Ripa 1988), which lies within a succession of Proterozoic...canic rocks (1.90 –1.87 Ga: Ripa et al. 2008). There are magnetite ores, magnetite-sulfide ores and sulfide...and silicates (Geijer & Magnusson 1944, Grip 1978, Ripa et al. 2008). These skarn ores form lenticular to |  | | Journal (article/letter/editorial) | | Ore-forming Processes in the Apuane Alps (NW Tuscany, Italy): Constraints by Pb-lsotope Data* P. Lattanzi...z Museo di Mineralogia, Universit~ di Firenze, Italy, 3 IKP-ETH, Ziirich, Switzerland With 4Figures Received...208/204: 38.5-38.6), defining a high #, high W province suggestive of an evolution in a crustal environment...Pb-isotope data from deposits of the southern Tuscany * This paper was presented at the IGCP 291 Project...Apuane Alps are a mountain chain in northwestern Tuscany, Italy, which is worldwide renowned for the production |  | | Journal (article/letter/editorial) | | Volcano-Sedimentary Sequences of the Eastern Ligurian Ophiolites (Italy) MINERALIUM DEPOSITA © by Springer-Verlag 1980...Milano, Italy G. Garuti Istituto di Mineralogia e Petrografia, Universit~ di Modena, Italy Ik large...Minerals like lievrite, valleriite~ neodigenite and magnetite found at M. Ramazzo, seem to be related to the...chalcopyrite, whereas sphalerite, pyrrhorite, marcasite, magnetite, hematite, arsenopyrite, mackinawite, bornite...deposits l-Corchia 2-Molini 3-M. Ramazzo 4-Rovegno 5-Ripa della Fugaja 6-Reppia 7-Le Cascine 8-Rocca di Lagorara |  | | Report (chapter) | | Söderlund et al. 2005, 2006; Hogmalm et al. 2006; Ripa et al. 2012). A dyke swarm with an eastnortheasterly...locally referred to as Jotnian (see Chapter 10, Ripa & Stephens 2020), they are also commonly addressed...part of the Mesoproterozoic (1.3–1.1 Ga) Gardar Province in southernmost Greenland (Upton et al. 2003)...isotropic and both olivine- and magnetite-bearing (Lundqvist et al. 1990; Ripa et al. 2012). Pyroxene-phyric...University of Waterloo on February 9, 2020 316 M. RIPA & M. B. STEPHENS NORRBOTTEN Luleå VÄSTERBOTTEN |  | | Journal (article/letter/editorial) | | oxide ores, and enigmatic marble/skarn-hosted magnetite deposits occur in the Palaeoproterozoic Bergslagen...incompletely understood. At the Smältarmossen mine, magnetite was mined from a ca. 50-m-thick calcic skarn...massive magnetite formed by pervasive replacement of limestone. Tectonic fabrics in magnetite and skarn...suggested, our results are more compatible with magnetite formation at ca. 1.89 Ga in a contact metasomatic...Smältarmossen . Garpenberg . Bergslagen . Sweden . Magnetite . Skarn Introduction The Bergslagen region of |  | | Report (chapter) | | both socially and economically. This metallogenic province is commonly referred to as the Bergslagen ore...well-preserved 1.7 Ga (postSvecokarelian) magmatic province (Chapter 9, Ripa & Stephens 2020a). A narrow trail of the...Early Paleozoic sedimentary strata (Chapters 10 (Ripa & Stephens 2020b) and 18 (Wickström & Stephens 2020)...F2 structure with an ENE–WSW axial surface trace (Ripa et al. 2002; Jansson 2017; see also below); and...Romer & Smeds (1997) Romer & Smeds (1997) Persson & Ripa (1993) Stephens et al. (1993) Lundström et al. (2002) |  | | Journal (article/letter/editorial) | | August 20, 1990) LITHOS ABSTRACT Ferrow, E.A. and Ripa, M., 1991. Chemistry, reaction mechanisms and micro-structures...t e d , especially in 272 E.A. FERROW AND M. RIPA processes and alteration history of the Stollberg...the foot-wall rocks of the Stollberg ore-field (Ripa, 1988). The rocks are early Proterozoic pyroclastic...ore-field (Fe-Mn-Pb-Zn (-Ag) deposits; mainly magnetite ores ). 5 = approximate position of centre of...Pyrite Gedrite Staurolite Chlorite II Serpentine Magnetite Epidote Total opaques x X x × x × 54% X |  | | Report (chapter) | | Paleoproterozoic to early Mesoproterozoic magmatic province in northern Europe, located along roughly north–south-...Paleoproterozoic to early Mesoproterozoic magmatic province in the Fennoscandian Shield, northern Europe,...including the classic rapakivi granite complexes. This province extends southwards in a linear belt from the Gulf...Paleoproterozoic to early Mesoproterozoic magmatic province in northern Europe suggests development during...Paleoproterozoic to early Mesoproterozoic magmatic province in Sweden, along the coast of the Gulf of Bothnia |  | | Journal (article/letter/editorial) | | Kuhlemann and Zeeh (1995), the Levigliani and Ripa deposits (Italy) by Dini et al. (2001), the Linares deposit...sphalerite in the whole Serbo-Macedonian Metallogenic Province ∗ Corresponding author. Tel.: +381 11 3691 722;...Hg-rich zones from Fig. 2d. Province (SMMP). The ore deposits of this province lie in a number of geotectonic...small part of the Dinarides. This metallogenic province has been delineated mostly by reference to the...alteration halo, several small Fe deposits occur (magnetite and pyrrhotite), and less frequently Bi, W and |  | Jonsson, Erik, Högdahl, Karin, Majka, Jaroslaw, Lindeberg, Tomas (2013) ROQUESITE AND ASSOCIATED INDIUM-BEARING SULFIDES FROM A PALEOPROTEROZOIC CARBONATE-HOSTED MINERALIZATION: LINDBOM’S PROSPECT, BERGSLAGEN, SWEDEN. The Canadian Mineralogist, 51 (4) 629-641 doi:10.3749/canmin.51.4.629 | Journal (article/letter/editorial) | | with indium-bearing sulfides associated with magnetite in a carbonate-hosted, polymetallic sulfide mineralization...western part of the Paleoproterozoic Bergslagen ore province, Sweden. Here, roquesite occurs in indium-bearing...variable amounts of bismuth minerals, abundant magnetite, and locally cassiterite. The indium-bearing ore...Herzig 2002, and references therein). In the Toyoha mine, Japan, the world’s largest indium producer in the...that early-formed indium-free sphalerite (at Toyoha mine) reacted with later, indium-rich fluids, to form |  | | Journal (article/letter/editorial) | | deposit is a SVALS deposit, similar to the operating mine at Garpenberg and other deposits at Sala, Saxberget...and legacy 2D mine maps and mine sections to create a three-dimensional model of the mine. Microstructural...SSE-plunging synform (Weijermars 1987, unpublished mine report). Pyritic massive sulphides are thickened...cuts and other outcrops close (<1 km) to the Falun mine. The mapping in the open pit was limited by the...represents the location of the deepest available mine map. By contrast, the altered rocks and other lithologies |  | | Book (volume) | | MOUNTAIN GEOLOGY ’ PARTS NORTHERN 1 AND [ITALY II AND TUSCANY BY C. S. DU RICHE PRELLER, M.A., Ph.D...MOUNTAIN PaRts NORTHERN I anp ITALY GEOLOGY. II. AND TUSCANY. OTHER GEOLOGICAL SAME PUBLICATIONS...Filol. Florence.” 1881. The Central Apennines from Tuscany to the Adriatic: ‘“‘ Journ. Ital. Alpine Club,...(The Moraine Walls and Lake Basins of Northern Italy. The Piedmontese Alps, Ligurian Apennines, Carrara...idem. The Ancient Sea and Lake Basins of Central Italy : idem. Italian Mountain Geology, Part II]. Wheldon |  | Maries, Georgiana, Malehmir, Alireza, Bäckström, Emma, Schön, Monika, Marsden, Paul (2017) Downhole physical property logging for iron-oxide exploration, rock quality, and mining: An example from central Sweden. Ore Geology Reviews, 90. 1-13 doi:10.1016/j.oregeorev.2017.10.012 | Journal (article/letter/editorial) | | author ϴ ϵ ϭϬ Highlights • exploration and mine planning ϭϭ ϭϮ • ϭϱ Deep exploration using...consisted of density, rock quality designation and magnetite Ϯϰ content measurements. Full-waveform sonic...rocks and proved their potential to be used for mine planning purposes. Ϯϲ The ore-bearing rocks are...potential to improve rock quality ϯϴ assessments for mine planning and exploration purposes. ϯϵ Keywords...properties can provide ϳϮ vital information for mine planning, by taking into account the different behavior |  | Allen, Rodney L., Lundstrom, Ingmar, Ripa, Magnus, Christofferson, Hans (1996) Facies analysis of a 1.9 Ga, continental margin, back-arc, felsic caldera province with diverse Zn-Pb-Ag-(Cu-Au) sulfide and Fe oxide deposits, Bergslagen region, Sweden. Economic Geology, 91 (6) 979-1008 doi:10.2113/gsecongeo.91.6.979 | Journal (article/letter/editorial) | | Hundv•g,4085Stavanger, Norway INGMAR LUNDSTROM, MAGNUS RIPA, Geological Surveyof Sweden, P.O.Box670,S-75128...theentiremineralized Sveeofennian magmatie reiron-formation, magnetite-calc-silicate skarn,manganiferousgionshownin Figure1...grade LensK (M. Ripa,unpub.data):1-4% Zn, 0.5-1% Pb, 10 g/t Ag,20-35%Fe, 7% Mn LensM (M. Ripa,unpub.data):3...data):3.2%Zn, 15.6%Pb, 320 g/t Ag LensL (M. Ripa,unpub.data):30%Fe, 12% Mn OsterSilvberg PyriticSAS Ash-siltstone...andgradedatafromBoliden AB,Hedstr6m et al.(1989),M. Ripa(unpub. data),andGeological Survey of Sweden (SGU)database |  | Gong, Zheng, Evans, David A.D., Elming, Sten-Åke, Söderlund, Ulf, Salminen, Johanna M. (2018) Paleomagnetism, magnetic anisotropy and U-Pb baddeleyite geochronology of the early Neoproterozoic Blekinge-Dalarna dolerite dykes, Sweden. Precambrian Research, 317. 14-32 doi:10.1016/j.precamres.2018.08.019 | Journal (article/letter/editorial) | | high-quality poles since they are usually enriched in magnetite grains. Also, baddeleyite grains in mafic intrusions...data (Ripa et al., 2012) and data from geological mapping of the Swedish Geological Survey (Ripa, personal...observations and the aeromagnetic anomaly map (Fig. 3; Ripa et al., 2012). AMS of Öje basalt is expected to...which provides clear evidence for the presence of magnetite. Minor drops in magnetic susceptibility are also...magnetic sulfides were broken down to form new magnetite, as suggested by the sharply increased susceptibility |  | | Journal (article/letter/editorial) | | Pegmont, and Pinnacles). Within the Curnamona Province, which hosts hundreds of minor BHT deposits, there... Above and along strike − 4 to 4‰ None, but magnetite common in ore 0 to 8‰ Ore in IF In Einasleigh...or above IF Above and below ore Ore in IF Magnetite schists, IF Minor Sulfur isotope compositions...28.7‰ VMS, SEDEX, BHT affiliations None, but magnetite common in ore 34, 35, 36, 37 38, 39, 40 Clastic...44, 45 Abbreviations: IF iron formation, Mag magnetite, Mc marcasite, Po pyrrhotite, Py pyrite Details |  | | Report (chapter) | | cratonic foreland to the orogen (see Chapter 13, Ripa & Stephens 2020d) as well as in, at least, the frontal...Mesoproterozoic rocks (see Chapters 9 (Ripa & Stephens 2020a) and 10 (Ripa & Stephens 2020b), respectively)...in the eastern cratonic foreland (see Chapter 13, Ripa & Stephens 2020d). Profile lines in (b) and (c) are...foreland to the Sveconorwegian orogen (see Chapter 13, Ripa & Stephens 2020d). Muscovite defining the mylonitic...west-central Sweden (c. 1.71–1.68 Ga: see Chapter 9 (Ripa & Stephens 2020a) in this Memoir). Supracrustal |  | Kampmann, Tobias C., Jansson, Nils F, Stephens, Michael B., Majka, Jarosław, Lasskogen, Jonas (2017) Systematics of Hydrothermal Alteration at the Falun Base Metal Sulfide Deposit and Implications for Ore Genesis and Exploration, Bergslagen Ore District, Fennoscandian Shield, Sweden. Economic Geology, 112 (5) 1111-1152 doi:10.5382/econgeo.2017.4504 | Journal (article/letter/editorial) | | spatial relationships also have implications for near-mine exploration, since quartz-rich footwall rocks locally...(Bergslagen ore district) Active base metal sulfide mine ( ! (! ! ( ! (! (! ( ! ( ! ( ( ! 15.5° E 15...containing mainly hornblende, plagioclase, and minor magnetite; the two types of dikes apparently showing a composite...data in and around the open pit, a study of legacy mine maps, and the logging of drill cores situated less...mineralization (Fig. 2); pre-D1 emplacement accessory magnetite and sulfides plagioclase>K-feldspar>quartz occur; |  | Hou, Tong, Zhang, Zhaochong, Du, Yangsong, Li, Shunting (2009) Geology of the Gushan iron oxide deposit associated with dioritic porphyries, eastern Yangtze craton, SE China. International Geology Review, 51 (6) 520-541 doi:10.1080/00206810902823941 | Journal (article/letter/editorial) | | occurs as large veins consisting predominantly of magnetite (hematite) with minor apatite. The brecciated...of wall-rocks that are cemented by finegrained magnetite. Stockwork iron ores occur as irregular veins...Gushan apatite-magnetite (hematite) deposit is situated in Dangtu County, Anhui Province, in the south...the P-richest magnetite-apatite deposits in the area. Production from the Gushan iron mine has developed...there is a specific mineral assemblage, i.e. magnetite-hematite-apatite, called ‘Kiruna’-type iron deposits |  | | Journal (article/letter/editorial) | | fluorbritholite-(Ce), tremolite, a serpentine mineral, magnetite, dollaseite-(Ce) and dolomite. The mineral is...västmanlandite-(Ce) (v) grain, with inclusions of magnetite (m), dollaseite-(Ce) (d) and serpentine plus relics...Holotype material (cat. no. 01+0081) from the Malmkärra mine, Norberg district, Västmanland (lat. 60°3’N, long... 1983, 1988; Allen et al., 1996; Persson, 1997; Ripa et al., 2002): The oldest identified bedrock comprises... 1961). The deposits consist of disseminated magnetite-amphibole skarn replace- Fig. 2. Mg and Fe contents |  | | Journal (article/letter/editorial) | | located in the Palaeoproterozoic Bergslagen ore province, south central Sweden, comprise both stratabound...metasupracrustal-hosted deposits in the Bergslagen province, thereby suggesting a common origin from ca. 1...processes. Keywords Hällefors district Æ Bergslagen province Æ Massive sulphides Æ Sulphur isotopes Æ Laser...exploration models. The ca. 1.9 Ga Bergslagen ore province (Fig. 1), located in south central Sweden, is...in the westernmost part of the Bergslagen ore province (Fig. 2), are characterized by an unusual Pb– |
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Ripa Mine, Ripa, Seravezza, Lucca Province, Tuscany, Italy