| Moroni, Marilena, Rossetti, Piergiorgio, Naitza, Stefano, Magnani, Lorenzo, Ruggieri, Giovanni, Aquino, Andrea, Tartarotti, Paola, Franklin, Andrea, Ferrari, Elena, Castelli, Daniele, Oggiano, Giacomo, Secchi, Francesco (2019) Factors Controlling Hydrothermal Nickel and Cobalt MineralizationâSome Suggestions from Historical Ore Deposits in Italy. Minerals, 9 (7) 429 doi:10.3390/min9070429 | Journal (article/letter/editorial) | Piedmont. The third deposit is the poorly known, gabbro-hosted Piazza CuâAg-rich orebody located in one...exploitation of the Montevecchio PbâZnâAg vein district (Figure (Figure 1a), 1a), one one of of the the... Montevecchio Montevecchio mining mining district. district. (a) (a) Entrance Entrance of of an an old...the arsenideâsulfarsenide ore [27]; lower Co grades (0.2%) be lower found Co in very old(0.2%) reports...endSâOliu of the mining [28]. end of the mining district [28]. Fogu vein (Perda mine) indistrict the western | | | Journal (article/letter/editorial) | predate granite emplacement (Devonian and IP Lower Carboniferous sedimentary exhalative and vein parageneses)...cassiterite and tennantite. No In was detected in löllingite, arsenopyrite, rutile, haematite, magnetite,...China (Ishihara et al. 2008; 2011); at Freiberg, Germany SC R (Seifert and Sandmann 2006); Mount Pleasant...igneous rocks, mostly basalt lavas SC R and basalt-gabbro sills, are common (Leveridge and Hartley 2006)...continental collision during which SW England occupied a lower plate D position (Shail and Leveridge 2009). The | | Staude, Sebastian, Werner, Wolfgang, Mordhorst, Teresa, Wemmer, Klaus, Jacob, Dorrit E., Markl, Gregor (2012) Multi-stage AgâBiâCoâNiâU and CuâBi vein mineralization at Wittichen, Schwarzwald, SW Germany: geological setting, ore mineralogy, and fluid evolution. Mineralium Deposita, 47 (3) 251-276 doi:10.1007/s00126-011-0365-4 | Journal (article/letter/editorial) | vein mineralization at Wittichen, Schwarzwald, SW Germany: geological setting, ore mineralogy, and fluid...CoâAgâBiâU mining area (Schwarzwald ore district, SW Germany) hosts several unconformity-related vein-type...UniversitĂ€t TĂŒbingen, Wilhelmstrasse 56, 72074 TĂŒbingen, Germany e-mail: markl@uni-tuebingen.de W. Werner RegierungsprĂ€sidium...Bergbau (LGRB), Albertstr. 5, 79104 Freiburg i. Br., Germany UâBi, BiâAg, NiâAsâBi and CoâAsâBi. Important...to highly saline (around 25 wt.% NaCl+CaCl2) at lower temperatures (50â150°C) in Triassic to Cretaceous | | | Journal (article/letter/editorial) | Sn-sulïŹde mineralization, namely, in the Erzgebirge, Germany (Baumann, 1965; Seifert and Baumann, 1994; Seifert...China, and North Vietnam. The SE AltaiâNW Mongolia district is one of the best studied silver-ore districts...paper. 3.1. Silver ore district of SE Altai and NW Mongolia The silver ore district of SE AltaiâNW Mongolia...Precambrian metamorphosed volcanic-carbonate rocks, Lower Cambrian volcanic and clastic rocks, OrdovicianâEarly...Main features of the ore districts and deposits. District Ore cluster SE AltaiâNW Mongolia Yustid Tolbonur | | | Book (edition) | Mattagamite Froodite Arsenopyrite Glaucodot Gudmundite Löllingite Safflorite Rammelsbergite Pararammelsbergite...Affiliation/Address Luzerner Str. 10-12, D-12205 Berlin, Germany â Freie UniversitĂ€t Berlin, FB Geowissenschaften...Mineralogie, Malteserstr. 74-100, D-12249 Berlin, Germany Bundesanstalt fĂŒr Geowissenschaften und Dr. Frank...Stilleweg 2, D-30655 HanDr. Thomas OberthĂŒr nover, Germany Dr. Thomas Kenkmann Museum fĂŒr Naturkunde der ... zu Berlin, Invalidenstr. 43, D-10115 Berlin, Germany Prof. Dr. Robert Marschik & Ludwig-Maximilians | | | Journal (volume) | . ..... . . . ........ . . 13 H ornbledite, gabbro and diorite . .. , .. . .... . .... . . . . ..... . . . . . . . . . . . . . . . . . . . . . . Löllingite ....................... . ..... . ...... . .... »tantalite» (columbite) and »arsenopyrite» (löllingite). Laitakari (1914) has to his credit a detailed...with the general geology of the PerĂ€seinĂ€joki district. The area investigated belongs to the map sheet...ses situated on the north side of the Kaatiala quarry there occur layers containing an abundance of muscovite | | | Journal (article/letter/editorial) | associations from Greenland, Canada, Morocco and Germany were investigated with respect to their sulfide...additional galena (along with unusual phases such as löllingite, djerfisherite, and thalcusite), especially in...Schweizerbartâsche Verlagsbuchhandlung, Stuttgart, Germany DOI: 10.1127/njma/2018/0095 eschweizerbart_xxx...et al. 2008) and from the Urach volcanic field, Germany (Wilson & doWnes 2006, lustrino & Wilson 2007)...sphalerite. 2.4. Urach, SW-Germany The Urach volcanic field in SW-Germany is part of the Paleogene volcanic | | | Journal (article/letter/editorial) | Co-rich chromian spinels from the Bou-Azzer mining district (Morocco): Constraints on their relationship with...mining district Morocco a b s t r a c t The CoâNi arsenides from the Bou-Azzer mining district contain...spinels from Tamdrost and AĂŻt-Ahmane ores have much lower contents in these elements. Zn and Mn concentration...Neoproterozoic tectonic evolution of the Bou-Azzer district The Bou-Azzer ore bodies . . . . . . . . . . ...Cu-rich sulphide ores in the Bou Azzer mining district (Morocco). Previous studies revealed unusually | | | Journal (article/letter/editorial) | sulïŹde minerals dominated by pyrite, arsenopyrite, löllingite and pyrrhotite. Two types of hydrothermal sericite...hornblendites intruded by porphyritic hornblende gabbro dykes and granite dykes. The clinopyroxenites consist...rocks or Palaeozoic magmatic rocks, and comprise gabbro-diorite complexes, diorite-granodiorite batholiths...dykes (Fig. 3). The gabbro-diorite complexes commonly have a core of hornblende gabbro surrounded by diorite...diorite and quartz diorite. The hornblende gabbro consists of medium-grained zoned plagioclase (58%), hornblende | | | Book (edition) | Mineralogie, Malteserstr. 74-100, D-12249 Berlin, Germany Earth Science Department / College of Science,...Feld 236, D-69120 Heidelberg, Germany Sodenstr. 19, D-12309 Berlin, Germany Graslitzer Str. 5, D-63791 Karlstein...Karlstein am Main, Germany Ludwig-Maximilians UniversitĂ€t, Department fĂŒr Geo- und Umweltwissenschaften...Ressourcengeologie, Luisenstr. 37, D80333 MĂŒnchen, Germany Bundesanstalt fĂŒr Geowissenschaften und Rohstoffe...Rohstoffe (BGR), Stilleweg 2, D-30655 Hannover, Germany Dr. Salah Al-Khirbash Prof. Dr. Rainer Altherr & | | Kovalchuk, E. V., Tagirov, B. R., Vikentyev, I. V., Chareev, D. A., Tyukova, E. E., Nikolsky, M. S., Borisovsky, S. E., Bortnikov, N. S. (2019) âInvisibleâ Gold in Synthetic and Natural Arsenopyrite Crystals, Vorontsovka Deposit, Northern Urals. Geology of Ore Deposits, 61 (5) 447-468 doi:10.1134/s1075701519050039 | Journal (article/letter/editorial) | in general: later Asrich arsenopyrite formed at lower temperature and sulfur fugacity (T = 250â370°C,...FeAsS, arsenian pyrite FeS2, and less frequent löllingite FeAs2. Arsenopyrite is one of the major ore minerals...at the cation site. The study of arsenopyrite, löllingite, As-rich pyrite, marcasite, and pyrrhotite synthesized...N, 60°12âČ56âČâČ E) is situated in Krasnoturinsk District, Sverdlovsk oblast, in the Auerbakh volcanoplutonic...been molded into bars. The Turyaâ Aurbakh ore district hosting this deposit corresponds to the eponymous | | Vikentyev, I.V., Tyukova, E.E., Vikent'eva, O.V., Chugaev, A.V., Dubinina, E.O., Prokofiev, V.Yu., Murzin, V.V. (2019) Vorontsovka Carlin-style gold deposit in the North Urals: Mineralogy, fluid inclusion and isotope data for genetic model. Chemical Geology, 508. 144-166 doi:10.1016/j.chemgeo.2018.07.020 | Journal (article/letter/editorial) | PT 1. Introduction The Turya-Auerbakh mineral district in the Krasnoturyinsk area, Ekaterinburg region...Uralian Fault in the west (Fig. 1). The mineral district, including the Vorontsovka Au deposit, covers...mineralisation. For the Turya-Auerbakh mineral district, copper±iron-skarn and gold (Vorontsovka) deposits...MANUSCRIPT 5 potassic basalt, trachybasaltic andesite, gabbro-diabase, hornblende, and biotite lamprophyre. The...phase of the Auerbakh Complex is the Middle Emsian gabbro-diorite; the Late Emsian coarse-grained granodiorite | | Juul-Pedersen, Astrid, Frei, Robert, Appel, Peter W.U., Persson, Mac Fjellerad, Konnerup-Madsen, Jens (2007) A shear zone related greenstone belt hosted gold mineralization in the Archean of West Greenland. A petrographic and combined PbâPb and RbâSr geochronological study. Ore Geology Reviews, 32 (1) 20-36 doi:10.1016/j.oregeorev.2007.01.002 | Journal (article/letter/editorial) | various mineral associations, but its presence in löllingiteâarsenopyriteâpyrrhotite parageneses is prevalent...model for the deposition of the gold-bearing löllingiteâarsenopyriteâpyrrhotite assemblage on StorĂž:...stage, gold-bearing arsenopyrite was replaced by löllingite and pyrrhotite. This took place during regional...within löllingite as discrete grains. During subsequent retrograde metamorphic conditions, löllingite and...as discrete grains or films along arsenopyriteâlöllingite grain boundaries. During a later event a garnet | | | Book (volume) | phisches Institut der UniversitĂ€t Heidelberg (Germany), my research training with professors like P....approach (from outcrop through to orebody and district scales, to support textural interpretation), the...(Fig. 112.3, vol. 1). In some minerals, like löllingite, it is convenient to use the analyzer (+p setting...center, zoned bravoite crystal. Rub.sn, Maubach, Germany (osp). b Aggregate of subtly zoned pyrite (with... Zoned crystals of safflorite (sf, core) and löllingite (lo, periphery), included in groundmass of rammelsbergite | | ScherstĂ©n, Anders, Szilas, Kristoffer, Creaser, Robert A., NĂŠraa, Tomas, van Gool, Jeroen A.M., Ăstergaard, Claus (2012) ReâOs and UâPb constraints on gold mineralisation events in the Meso- to Neoarchaean StorĂž greenstone belt, StorĂž, southern West Greenland. Precambrian Research, 200. 149-162 doi:10.1016/j.precamres.2011.12.014 | Journal (article/letter/editorial) | throughout north central StorĂž. Anorthosite and gabbro in antiformal fold cores on Qingaaq and Aappalaartoq...Escher and Pulvertaft (1995). (e.g. the anorthositeâgabbro complex), or intrusive felsic sheets into the amphibolite...at StorĂž occurs commonly with arsenopyrite ± löllingite (Juul-Pedersen et al., 2007; Nutman et al., 2007)...occurrence is located tectonicstratigraphically lower along the contact between the biotite gneisses of...expose anorthositeâgabbro rocks at the tectonostratigraphic base. These anorthositeâgabbro rocks are presumably | | | Journal (issue) | Museum Toronto, Ontario Steven R. Morehead Green Valley, AZ Donald R. Peacor University of Michigan Ann...Behnke Northbrook, IL Werner Lieber Heidelberg, W. Germany Eric Offermann Arlesheim, Switzerland Jeffrey A...Garvin & G. Tribbey The minerals of the Hunting Hill quarry, Rockville, Maryland . . . . . . . . . . . . ....and core of the pegmatite has been uncovered, the lower part remaining inaccessible to observation. Overall...and urtites. (3) Upper zone. (4) Middle zone. (5) Lower zone. (6) Porphyritic and non-porphyritic nepheline | | McFarlane, C. R. M., Mavrogenes, J., Lentz, D., King, K., Allibone, A., Holcombe, R. (2011) Geology and Intrusion-Related Affinity of the Morila Gold Mine, Southeast Mali. Economic Geology, 106 (5) 727-750 doi:10.2113/econgeo.106.5.727 | Journal (article/letter/editorial) | maldonite, aurostibite, rare tellurobismuthite, and löllingite, suggesting a proximal intrusion-related source...whereas KFMASH assemblages in the surrounding district (e.g., biotite-chlorite-muscovite-quartz-K-feldspar)...upper contacts and flat lower contacts with the host rocks. The upper and lower margins are also more strongly...aurostibite (AuSb2), tellurobismuthite (Bi2Te3), löllingite (FeAs2), pyrrhotite, and chalcopyrite. Gold hosted...locally contains partially resorbed cores of löllingite, itself containing elongate to polygonal inclusions | | | Journal (article/letter/editorial) | nT). Rocks of ore-bearing intrusions of the Dukuk gabbroâcortlandite complex are characterized by low magnetic...intrusions of the cortlanditeâhornblenditeâ pyroxeniteâgabbroâdiorite association of the Dukuk Complex. The composition...direction. The minor intrusions are composed of gabbro, pyroxenite, hornblendite, and cortlandite (Fig...complexes: (6) Dukuk gabbroâcortlandite, (7) moderately alkaline clinopyroxeniteâgabbroâmonzonite; (8) axes...a Triton thermal ionization mass spectrometer (Germany). The Shanuch deposit yielded the following isochron | | Volkov, A. V., Savva, N. E., Sidorov, A. A., Prokofâev, V. Yu., Goryachev, N. A., Voznesensky, S. D., Alâshevsky, A. V., Chernova, A. D. (2011) Shkolânoe gold deposit, the Russian Northeast. Geology of Ore Deposits, 53 (1) 1-26 doi:10.1134/s1075701511010065 | Journal (article/letter/editorial) | for several years, a followup exploration of the lower levels is required. A comprehensive study of the...in the Tenâke District of the Magadan Region at a distance of 60 km from the district centerâthe settlement...Geological scheme of the Upper Kolyma ore district. (1) River valley; (2) volcanic sequence; (3) Late Cretaceous...depth of 42 km (Fig. 5). Eight reliably determined lower edges of density inhomogeneities are revealed. Two...the stock were formed in the following sequence: gabbro and gabbrodioriteâdioriteâ granodioriteâadamellite | | | Journal (volume) | rock grades locally into a dark hornblende-augite gabbro. The dioritegabbro pluton is surrounded by an archshaped...Rappuvuori granite intrusion between the diorite-gabbro Geological Survey of Finland, Bulletin 314 areas...(pegmatite) in mica sch ist near th e K eskimetsĂ€ quarry (46). Note the fault on the right. Length of h...tZ7:L Mie a sehist, vertical section (;;:~~ Quarry, horizontal seetion f Drill hole, vertieal section...10 m thick. In the western part of the 'l argest quarry the pegmatite turns sharply southwaI1ds (Lonka | | 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) | e-actinolite-pyrrhotite(-chloriteplagioclase-löllingite-tourmaline-titanite), which is best developed...accompanied by brittle deformation. A ca. 1745-Ma lower greenschist facies hydrothermal epidote-calcite-zoisite...exhumation from amphibolite facies conditions to lower greenschist facies conditions in an orogenic belt...lesser volumes of tonalite, diorite and subordinate gabbro and mafic dykes (Chadwick and Garde 1996; Garde...Stratigraphic column location Fig. 2 Map of the Kirkespir valley showing the geology of Nalunaq, Kirkespir and Ship | | Valkama, M., Sundblad, K., Cook, N. J., Ivashchenko, V. I. (2016) Geochemistry and petrology of the indium-bearing polymetallic skarn ores at PitkĂ€ranta, Ladoga Karelia, Russia. Mineralium Deposita, 51 (6) 823-839 doi:10.1007/s00126-016-0641-4 | Journal (article/letter/editorial) | Heidelberg 2016 Abstract The historic mining district of PitkĂ€ranta in the Ladoga region, Fennoscandian... Introduction PitkĂ€ranta is a historic mining district along the northeastern shore of Ladoga, Karelia...1810 and 1904 (TrĂŒstedt 1908). The PitkĂ€ranta district extends over a 25-km-long N-S trending zone in...Winberg, Hopunvaara and Lupikko. The PitkĂ€ranta district also includes a number of smaller mines and prospects... 1883) when Alfred Elis Törnebohm visited the district as a consultant in 1889. One result of Törnebohmâs | | | Journal (article/letter/editorial) | the evolving batholith, including the Stendalen gabbro; and (3) extensive areas of Ketilidian supracrustal...peninsula; Ni, Niaqornaarsuk peninsula; S, Stendalen gabbro; T, gold occurrences within Taartoq greenstone...occurrences at Nalunaq, Ipatit, Lake 410 (Nanortalik district, southwest coast) and Kutseq (southeast coast)...32,46 The gold mineralization of the Nanortalik district and Kutseq area is related to metapelites and...0.1â2 m wide.15,32,33 Gold is associated with löllingite and traces of BiâSb. Fluid inclusions in quartz | | | Journal (article/letter/editorial) | Zeiss, Jena, Germany), and with the electron microscope LEO-1450 (Karl Zeiss, Jena, Germany) in the Geological...KolmozeroâVoronya belt were intruded by: âą âą âą âą âą Gabbro, pyroxenite, and peridotite co-magmatic to the...conditions of the lower amphibolite Ga) and andPaleoproteroPaleoproterozoic tions of the lower amphibolitefacies:...little lower (530°C P =At 3â4the kbar. the late of metamorphism, the temperature a little lower (530 âŠ...minerals are native bismuth, gudmundite, tennantite, löllingite lillianite, and pentlandite [9,36]. The oxidation | | | Journal (article/letter/editorial) | strike length of âŒ25 km, located in the Kurnool district of Andhra Pradesh. In the northern part of the...second phases of granitic activity in the area. Gabbro and dolerite dikes cut across (Fig. 2) all the...titanite ± chlorite ± Feâ sulfides (arsenopyrite, löllingite). shear zones Mineralization not Mg amphibole...kbar/400â450°C directly associated with veins pyrite + löllingite ± chalcopyrite ± pyrite) Vertically extensive...Gavanikonda blocks of Jonnagiri schist belt, Kurnool district, Andhra Pradesh. Rec Geol Surv Ind 129:29â31 Jairam |
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Gabbro Quarry, Radau valley, Bad Harzburg, Goslar District, Lower Saxony, Germany