 | Selby, David, Creaser, Robert A., Stein, Holly J., Markey, Richard J., Hannah, Judith L. (2007) Assessment of the 187Re decay constant by cross calibration of Re–Os molybdenite and U–Pb zircon chronometers in magmatic ore systems. Geochimica et Cosmochimica Acta, 71 (8) 1999-2013 doi:10.1016/j.gca.2007.01.008 | Journal (article/letter/editorial) | | Norges geologiske undersøkelse, 7491 Trondheim, Norway Received 28 February 2006; accepted in revised...British Columbia and reported in Murphy (1997) and Bakke (1995). d Re–Os data from Alberta (Selby and Creaser...Columbia) has not been published, but is discussed in Bakke, 1995; Murphy, 1997. At Fort Knox, Tintina Gold...pluton, dated at 92.5 ± 0.2 [0.3] Ma by U–Pb zircon (Bakke, 1995; Murphy, 1997; J.K. Mortensen, pers. comm...Øvre Myssa, Gursli district, Rogaland, Norway Southern Norway is characterized by widespread veinstyle |  | Rosenberg, J. L., Spry, P. G., Jacobson, C. E., Cook, N. J., Vokes, F. M. (1998) Thermobarometry of the Bleikvassli Zn-Pb-(Cu) deposit, Nordland, Norway. Mineralium Deposita, 34 (1) 19-34 doi:10.1007/s001260050183 | Journal (article/letter/editorial) | | of the Bleikvassli Zn-Pb-(Cu) deposit, Nordland, Norway Received: 18 June 1997 / Accepted: 14 May 1998...undersùkelse, P.O. Boks 3006 Lade N-7002 Trondheim, Norway F.M. Vokes Institutt for Geologi og Bergteknikk...naturvitenskapelige Universitet, N-7034 Trondheim, Norway 5.0 kbar and 8.5 1.2 kbar, respectively. Pressures...Ag from 4.9 Mt mined between 1957 and 1994 (Olav Bakke personal communication). Southern and northern ore...Quartzitic/Quartzofeldspathic Rocks Ore (at depth/outcropping) Microcline/Plagioclase Gneiss 100 0N Amphibolite tn va |  | | Journal (article/letter/editorial) | | Bleikvassli Zn-Pb-Cu deposit, Nordland, northern Norway H. Skauli ~'*, A.J. Boyce 2, and A.E. Fallick 2...Universityof Oslo, P.O. Box 1047 Blindern, N-0316 Oslo, Norway 2 Scottish Universities Research and Reactor Centre...Uppermost Allochthon in the Caledonides of northern Norway. The orebody is enclosed in amphibolite-facies...Saga Petroleum, P.O. Box 490, N-1301 Sandvika, Norway orebody was classified as a sediment-hosted massive...ore I 240 Microcline gneiss (hanging wall) "~X~,":,~: , n--n--r, 1--n--n--n Microcline gneiss (foot-wall) |  | Rhys, David, DiMarchi, Jack, Smith, Moira, Friesen, Robert, Rombach, Cameron (2003) Structural setting, style and timing of vein-hosted gold mineralization at the Pogo deposit, east central Alaska. Mineralium Deposita, 38 (7) 863-875 doi:10.1007/s00126-003-0372-1 | Journal (article/letter/editorial) | | pegmatite, as is reported at the Fort Knox deposit by Bakke et al. (2000). Quartz-rich pegmatite may contain...comprising early, granular textured quartz and microcline, is locally present (Moore 2000). All vein types...particularly Fort Knox, Dolphin, and Ryan Lode (Bakke 1995; Bakke et al. 2000; McCoy et al. 1997; McCoy 2000;...Unit publication number P-157. 875 References Bakke A (1995) The Fort Knox ‘‘porphyry’’ gold deposit...Metallurgy and Petroleum, Spec Vol 46, pp 795–802 Bakke A, Morrell B, Odden J, Bergstrom P, Woodman J (2000) |  | Thompson, J. F. H., Sillitoe, R. H., Baker, T., Lang, J. R., Mortensen, J. K. (1999) Intrusion-related gold deposits associated with tungsten-tin provinces. Mineralium Deposita, 34 (4) 323-334 doi:10.1007/s001260050207 | Journal (article/letter/editorial) | | exploration implications. 92 Bi, Te, Mo, As, Sb, W Bakke (1995) 349 12a As, Bi, Te, Mo, MoraÂvek (1995)...producer, has well-established characteristics (Bakke 1995) and occurs in an extensive belt of Late Cretaceous...apart and re¯ect district-wide structural controls (Bakke Fig. 2 Representative geological section of the...hosted by three main granite phases (modi®ed from Bakke 1995) 326 1995). The veins have low total sulphide...with tungsten, molybdenum, arsenic or antimony (Bakke 1995; McCoy et al. 1997). Reconnaissance ¯uid inclusion |  | Rosenberg, J. L., Spry, P. G., Jacobson, C. E., Vokes, F. M. (2000) The effects of sulfidation and oxidation during metamorphism on compositionally varied rocks adjacent to the Bleikvassli Zn-Pb-(Cu) deposit, Nordland, Norway. Mineralium Deposita, 35 (8) 714-726 doi:10.1007/s001260050274 | Journal (article/letter/editorial) | | to the Bleikvassli Zn±Pb±(Cu) deposit, Nordland, Norway Received: 1 March 1998 / Accepted: 3 May 2000 ...Zn±Pb±(Cu) volcanogenic massive sul®de deposit, Norway, are dependent upon the competing eects of f O2±f...naturvitenskapelige Universitet, 7034 Trondheim, Norway eation of a sul®dation±oxidation halo bordering...the Bleikvassli Zn±Pb± (Cu) deposit of Nordland, Norway. The 6.5 Mt Bleikvassli deposit is well suited...deposit. The orebody is typically underlain by a microcline gneiss that Skauli considered to have been derived |  | Dressel, Bárbara Carolina, Chauvet, Alain, Trzaskos, Barbara, Biondi, João Carlos, Bruguier, Olivier, Monié, Patrick, Villanova, Sandro Notto, Newton, José Bazille (2018) The Passa Três lode gold deposit (Paraná State, Brazil): An example of structurally-controlled mineralisation formed during magmatic-hydrothermal transition and hosted within granite. Ore Geology Reviews, 102. 701-727 doi:10.1016/j.oregeorev.2018.09.007 | Journal (article/letter/editorial) | | and presents an igneous paragenesis composed of microcline, plagioclase, quartz and biotite (Fig. 3A, B)... 3D). The igneous paragenesis is composed of microcline, plagioclase, quartz and biotite, and accessory...facies is a monzogranite composed of plagioclase, microcline and quartz (Fig. 3E, F). The texture is medium...grains. They are mainly composed of plagioclase, microcline, quartz, fluorite and hematite (Fig. 4E), whereas...in the Timbarra (Mustard, 2001) and Fort Knox (Bakke, 1995 in Mustard, 2001; McCoy et al., 1997 in Thompson |  | | Journal (article/letter/editorial) | | the Uppermost Allochthon (UmA) mostly in northern Norway. The Neoproterozoic and Cambrian history of this...á P.M. Ihlen Geological Survey of Norway, N-7491 Trondheim, Norway e-mail: tor.grenne@ngu.no F.M. Vokes...Engineering, Hùgskoleringen 6, N-7491 Trondheim, Norway host to two characteristic types of stratabound-stratiform...higher levels in the nappe pile, in southwestern Norway, the western Trondheim Region, the western Grong...in the western Grong District and in southwest Norway. Orthomagmatic ores occur in the form of PGE mineralisation |  | | Journal (article/letter/editorial) | | Undersøkelse, Leiv Eirikssons vei 39, 7491 Trondheim, Norway Received 15 April 2004; accepted 2 June 2005 Available...hydrothermal zircon and fluorite, all associated with microcline-dominant leucosomes. * AIRIE Program, Department...previously recognized. The classic greisen or microcline F biotite F garnet alteration attributed to an...Allebuoda, molybdenite is particularly prominent in a microcline-dominant aplite described as a large apophysis...he m pr of ile LEGEND MU1 167 m MU3 Red microcline granite 192 m Pink-red aplitic granite, sometimes |  | | Journal (article/letter/editorial) | | in the Bleikvassli Zn-Pb-(Cu) deposit, Nordland, Norway Received: 7 July 1997 / Accepted: 14 May 1998...identi®ed in sulphide samples from Bleikvassli mine, Norway. Detailed optical microscopy and electron probe...Trondheim, Norway Present address: Geological Survey of Norway Boks 3006 Lade, N-7002 Trondheim Norway 1 (CuPbSbS3)...sulphide ore body, situated in the county of Nordland, Norway, some 50 km south of the town of Mo i Rana at about... (SEDEX) origin and that a prominent body of microcline gneiss in its footwall (see Skauli 1993) represented |  | Kampf, A. R., Mills, S. J., Housley, R. M., Williams, P. A., Dini, M. (2012) Alcaparrosaite, K3Ti4+Fe3+(SO4)4O(H2O)2, a new hydrophobic Ti4+ sulfate from Alcaparrosa, Chile. Mineralogical Magazine, 76 (4) 851-861 doi:10.1180/minmag.2012.076.4.03 | Journal (article/letter/editorial) | | procedure. The standards used were albite (for Na), microcline (for K), pyrite (for Fe), X-ray crystallography...70 years (Cameron and Robinson, 1907; Wirth and Bakke, 1914; Appleby and Wilkes, 1922; Posnjak and Merwin...française de Minéralogie, 58, 97 221. Wirth, F. and Bakke, B. (1914) Untersuchung über Ferrisulfate. Darstellung |  | | Journal (article/letter/editorial) | | characteristic feature is the presence of large microcline crystals up to 5 cm in size (Fig. 6A, B) creating...parallel orientation of the large, elongated microcline crystals locally creates a trachytoidlike texture...granosyenite, Guzhumsai mine. (B) Large zoned microcline crystals, porphyritic granosyenite, Charmitan...D., Newberry, R.J., Layer, P., DiMarchi, J.J., Bakke, A., Masterman, S., and Minehane, D.L., 1997, Plutonic-related |  | | Report (issue) | | Peridotite at Engenbræ, Holandsfjord, Northern Norway. With 13 textfigures. Sammendrag: Bergartene omkring...1929: The Cambrian beds of the Mjøsen district in Norway. - Norsk geol. tidsskr., 10, h. 3-4, pp. 307-365...1953: The Middle Ordovician of the Oslo Region, Norway. l. Introduction to stratigraphy. - Norsk geol...pegmatites. Brookite and kasolite are new species for Norway. Litteratur. Dahl!, Telle/. Dagbog 1863. NGU's...recently studied the anorthositic region of Egersund (Norway, ~ublications 1939 and later) this perthite-type |  | | Journal (article/letter/editorial) | | alteration, which is presently in the form of microcline and muscovite F biotite. Each of the three above...staurolite (Muir, 1993) as well as syntectonic microcline and post-tectonic muscovite poikiloblasts (Muir...F silicic alteration, currently expressed as microcline, muscovite, biotite and quartz, with various...where possible: Ab = albite; Bt = biotite; Mc = microcline; Mo = molybdenite; Ms = muscovite; gMs = green...See Fig. 7 for location. (C) K-metasomatized (microcline) lapilli tuff with composite clast of lapilli |  | | Journal (article/letter/editorial) | | 2 mm) groundmass consists of quartz (20–30%), microcline (15–25%), and calcic plagioclase (20–40%). The...heterogranular (0.5–1.5 mm) quartz and plagioclase-microcline aggregates defining a weak fluxion structure...of the alteration zone, pyrite-bearing quartz-microcline veinlets are bordered by patchy selvages of turbid...not a skarn, but consists of stibnite-bearing microcline gneiss dated by a minimum Ar-Ar muscovite age...main open pit, these dikes cut across pyroxene-microcline gold skarn. The U-Pb zircon age of the granite |  | Spry, Paul G., Paredes, M. Milagros, Foster, Fess, Truckle, Jack S., Chadwick, Tom H. (1996) Evidence for a genetic link between gold-silver telluride and porphyry molybdenum mineralization at the Golden Sunlight Deposit, Whitehall, Montana; fluid inclusion and stable isotope studies. Economic Geology, 91 (3) 507-526 doi:10.2113/gsecongeo.91.3.507 | Journal (article/letter/editorial) | | •nargins feldspar consists of orthoelase and microcline. Microscopic alteration whichmaybe subdivided...Tertiarymeteoricwater, et al., 1995);Fort Knox,Alaska(Bakke,1996);AylwinCreek, assumed in Porterand Ripley'sstudy...andintermittently boiling,followed by cooler,less Bakke,A.A.,1996,The Fort Knox"porphyry" Au-AgTELLURIDE |  | Wang, Changhong, Huang, Yongjian, Ma, Yu, Zhang, Zhifeng (2019) Geochemistry, mineralogy and mineral chemistry of the Welatam Cu-Mo-Bi-Au prospect, Northeast Myanmar. Ore Geology Reviews, 111. 102973 doi:10.1016/j.oregeorev.2019.102973 | Journal (article/letter/editorial) | | and Bi minerals associated with alteration of microcline by quartz and muscovite; i. Same as h, but in...chalcopyrite, Py = pyrite, Asp = arsenopyrite, Mc = microcline, Ms = muscovite, Mol = molybdenite, Qz = quartz...muscovite, Chl = chlorite, Qz = quartz, Mc = microcline, Mol = molybdenite, Bi = native bismuth. 7 ...D., Newberry, R.J., Layer, P., DiMarchi, J.J., Bakke, A., Masterman, J.S., Minehane, D.L., 1997. Plutonic-related |  | | Book (volume) | | higher-temperature, silver-bearing variety. In Norway, three of the deposits (Sulitjelma, Bleikvassli...countries: Ireland England Scotland 3 7 1 Wales Norway Sweden 1 7 17 Finland Poland USSR 12 2 30. ...Directors of the Geological Surveys of Sweden and Norway. Stanislaw Dzujynsiki and Marie Sass-Gustkiewicz...the surface expression was a low hill in which a quarry showed small quantities of copper sulfides (0.1...vicinity of Castle-an-Dinas m i n e : Mine and Quarry Eng., v. 22, p. 423-427 Hosking, K. F. G. and Trounson |  | Pak, Sang Joon, Choi, Seon-Gyu, Oh, Chang-Whan, Heo, Chul-Ho, Choi, Sang-Hoon, Kim, Sung-Won (2006) Genetic Environment of the Intrusion-related Yuryang Au-Te Deposit in the Cheonan Metallogenic Province, Korea. Resource Geology, 56 (2) 117-132 doi:10.1111/j.1751-3928.2006.tb00273.x | Journal (article/letter/editorial) | | veins (Fig. 4A). In particular, muscovite and microcline commonly occur within quartz veins. The quartz...prevailing. It is harmonized with occurrence of microcline and/or muscovite within hydrothermal quartz vein...metal sulfides and Au-Ag-Te minerals. quartz microcline plagioclase biotite phlogopite muscovite sericite...Newberry, R. J., Layer P. W., Dimarchi, J. J., Bakke, A., Masterman, J. S. and Minerhane, D. L. (1997) |  | | Journal (article/letter/editorial) | | plotsinvolvingNa, Ca, and K composed of homogeneous microcline-quartz-biotitegeochemical mobilityof this suiteof...major deposit at L•kken in the Helonda terrane, Norway. cambrian time. A secondgroupof Cu-Zn (Bj•rlykke...REMDALEN GROUP 1000• [] MAFIavOLaANITES [] MICROCLINE-QUARTZ PORPHYRY o o % •e e• ßo n n ._ ...calc-alkaline trend. Formations(Rui, 1972; Rui and Bakke, 1975). These The ancient plate tectonic environmentof...Holonda of Caledonianstrataboundsulphidedepositsin Norway: terrane and equivalents(NorwegianCaledonides) |  | | Journal (article/letter/editorial) | | (Table 3). In GS rocks, K-feldspar is mostly microcline, although microperthite and perthite occur in...Chessboard and (or) Carlsbad twinning are evident. Microcline is relatively pure (Or>95), although some exceptions...intra-intrusion variations in composition of microcline are noticeable (Table 3): the Mount Douglas (Or81...crystallization. In GMS rocks, K-feldspar is orthoclase to microcline, although microperthite and (or) perthite are...43:343–354 McCoy D, Newberry RJ, Layer P, DiMarchi JJ, Bakke A, Masterman JS, Minehane DL (1997) Plutonic-related |  | | Journal (article/letter/editorial) | | composed of 1–3 mm long plagioclase (An21–28) and microcline phenocrysts, with minor interstitial quartz (Fig...fine-to-medium grained, and composed primarily of microcline with a fine-grained quartz groundmass (Fig. 4j)... Rombach, C.S., Thompson, J.F.H., Smith, M.T., Bakke, A.A., Goldfarb, R.J., 2002. Absolute timing of |  | | Report (chapter) | | presset. Videre mot S overdækket langs veien til en bakke s. for Ramberg, her staar en feldspatrik rødlig...connected with the crystalline schists of Southern Norway. The accompanying map includes an area of about...relatively rich in albite, with orthoclase and some microcline; quartz, and a green titaniferous lepidomelan...there is an area of white granite, composed of microcline, quartz and dark biotite. The rock is not pressed |  | | Journal (article/letter/editorial) | | comprises medium- to low-ordered cryptoperthitic microcline (2VNp = 62–80◦ ) and is typically highly albitized...temperature, the presence of orthoclase rather than microcline, a magnesian composition of biotite, and a low...; Newberry, R.J.; Layer, P.W.; Di Marchi, J.J.; Bakke, A.A.; Masterman, J.S.; Minehane, D.L. Plutonic-related |  | Soloviev, Serguei G., Kryazhev, Sergey G., Dvurechenskaya, Svetlana S. (2020) Geology, mineralization, and fluid inclusion characteristics of the Agylki reduced tungsten (W-Cu-Au-Bi) skarn deposit, Verkhoyansk fold-and-thrust belt, Eastern Siberia: Tungsten deposit in a gold-dominant metallogenic province. Ore Geology Reviews, 120. 103452 doi:10.1016/j.oregeorev.2020.103452 | Journal (article/letter/editorial) | | D., Newberry, R.J., Layer, P., DiMarchi, J.J., Bakke, A., Masterman, J.S., and Minehane, D.L., 1997....(50-60 vol.%), locally K-feldspar (orthoclase and microcline) (5-15 vol.%), and quartz (0-10 vol.%). Phenocrysts...plagioclase (40-50 vol.%), K-feldspar (orthoclase and microcline) (15-20 vol.%), and quartz (20-25 vol.%). Phenocrysts...plagioclase (30-35 vol.%), K-feldspar (orthoclase and microcline) (20-25 vol.%), and quartz (3035 vol.%). Phenocrysts |
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