 | | Journal (article/letter/editorial) | | Genesis of ArchcanGoldDeposits, Val d'Or,Canada C. D. ANGLIN,I. R. JON^SSON, .•NDJ. M. Fn^N•IN Geological Surveyof...theAbitibigreenstone beltin westernQuebec(theSigma, Pasealis-North, andSiseoe Extension mines):vielda lineararrayonanisoehron...andeNa• = 2.5.Eightscheelite samples fromthe Pasealis-North minealonedefineanexcellent lineararra;v withan MSWD...approximately 2600Ma,whichwasinterpreted to rep(Anglin,1990). Thepotential usefulness ofSm-Ndisochrons...Siseoe Extension, Sigma(-Lamaque), andPasealis-North. Insetmapshows the location of the district xvithin |  | Kempe, U., Belyatsky, B., Krymsky, R., Kremenetsky, A., Ivanov, P. (2001) Sm–Nd and Sr isotope systematics of scheelite from the giant Au(–W) deposit Muruntau (Uzbekistan): implications for the age and sources of Au mineralization. Mineralium Deposita, 36 (5) 379-392 doi:10.1007/s001260100156 | Journal (article/letter/editorial) | | mineral is suitable for Sm±Nd age determination (Anglin et al. 1987; Mueller et al. 1991; Kempe and OberthuÈr... Spooner 1991; Corfu 1993; Anglin et al. 1996; Frei et al. 1998). Anglin (1990) reported preliminary...deposits (Quebec, Canada) coinciding with Ar±Ar muscovite-Cr (fuchsite) and U±Pb rutile ages for the same...scheelite and tourmaline from the Val d'Or deposits by Anglin et al. (1996) indicated that Sm±Nd isochron ages...Charlotte mine (Western Australia) de®ning an age that was 170 Ma older than the Ar±Ar muscovite age. The |  | Olivo, G. R., Isnard, H., Williams-Jones, A. E., Gariepy, C. (2007) Pb ISOTOPE COMPOSITIONS OF PYRITE FROM THE C QUARTZ-TOURMALINE VEIN OF THE SISCOE GOLD DEPOSIT, VAL D'OR, QUEBEC: CONSTRAINTS ON THE ORIGIN AND AGE OF THE GOLD MINERALIZATION. Economic Geology, 102 (1) 137-146 doi:10.2113/gsecongeo.102.1.137 | Journal (article/letter/editorial) | | Montréal, Quebec, Canada H3C 3P8 Abstract The Siscoe mine was one of the richest in the Val d’Or mining camp...1949. The C quartz-tourmaline vein at the Siscoe mine, which is the youngest auriferous vein on the property...Norlartic, Kiena mines, and Main ore zone at Siscoe mine) that are mainly associated with second-order shear...well as the C quartz-tourmaline vein at the Siscoe mine, is represented by 137 138 SCIENTIFIC COMMUNICATIONS...the second gold mineralizing event. By contrast, Anglin et al. (1996) obtained significantly younger ages |  | | Journal (article/letter/editorial) | | diachronous accretion of allochthonous subprovinces from north to south over ca. 2710 to 2670 Ma. Timing of gold...in the Mesozoic-Cenozoic Cordilleran belt of the North American continent and the Cenozoic Alpine-Himalayan...m.y. post orogeny (e.g., Hodgson et al., 1989; Anglin, 1990; Jemielita et al., 1990; Wong et al., 1991;...4°Ar/39Ar ages of various minerals, particularly muscovite, have been used in an attempt to determine the...polymetamorphic muscovite porphyroblasts. Multiple laser 4"Ar/~gAr analyses on single muscovite grains yield |  | | Journal (article/letter/editorial) | | metamorphism,deformation,and hydrothermaleventsin the mine is well documented, preciseisotopicageconstraints...scheelite(Anglinet al., 1987; Bell et al., 1989; Anglin, 1990); and Rb-Sr dating (Kerrich et al., 1984)...step-heating analyses onsamples fromtwo to the north and the Larder Lake-Cadillac break to of Arebeanlodegolddeposits...steeplydipping,unfoliatedfeldsparporphyrydikes.In the mine,the time at the time of vein eraplacement. of m...monitors(standards) and emplacementof two thin, north-south-trending, dia- sphericcomposition. base dikes |  | | Journal (article/letter/editorial) | | nickeloan talc (0.511–0.582 apfu Ni) or chromian muscovite is developed in magnesite–quartz veins hosted...ultramafic talc + magnesite ± hematite ± chromian muscovite hydrothermal alteration located in Uspenskaya...respectively. Tourmaline associated with chromian muscovite can be classified as dravite (0.669–0.936 apfu...nickeloan tourmaline, nickeloan talc, chromian muscovite, ultramafic talc–carbonate alteration, Berezovskoe...talc nickelifère (0.511–0.582 apfu Ni) ou à la muscovite chromifère s’est développée dans des veines à |  | | Report (issue) | | Physical Characteristics of Commercial Sheet Muscovite in the Southeastern United States GEOLOGICAL SURVEY...under a cooperative agreement with the State of North Carolina and the Tennessee Valley Authority Physical... Physical Characteristics of Commercial Sheet Muscovite in the Southeastern United States By RICHARD H. JAHNS...under a cooperative agreement with the State of North Carolina and the Tennessee Falley Authority UNITED...6 7 8 11 12 12 15 16 16 17 17 22 24 26 Sheet muscovite in the Southeastern States.____________ Distribution |  | | Report (issue) | | GEOLOGIC MAP OF THE TONASKET QUADRANGLE, OKANOGAN COUNTY, WASHINGTON by Kenneth F. Fox, Jr. 1 , and C....Geological Survey editorial standards or with the North American "Stratigraphic Code. Any use of trade,...continuation of Orthogneiss of Anglin (unit Toa) Toa Orthogneiss of Anglin (Eocene to Paleocene)--Thinly...angular clasts of quartz, microcline, albite, and muscovite, and rarely, of rock fragments (quartzite and...The unit is also much deformed and mylonitized north of Tonasket (section 9, T.37N., R.27E.). An interbed |  | | Journal (article/letter/editorial) | | straightforward. Mineralization was coeval with the north to south diachronous zircons were inherited from...2592 _+2 Ma (U-Pbrutfie),2579 _+3 Ma (4øAr/agAr muscovite), and2602 _ 20 Ma. (Sm-Ndmineralisochron)onvein...in systemsat the Sigmamine (Fig. 1; Anglin, 1990; Wong et al., 1991; Haneset al., 1992a). At the nei...rated by Miller et 682 DISCUSSIONS Oamet-muscovite :::.•t•C. ...•P•Pb z•on Memmorph•m •?:•]i ?.•40Ar139Ar/•:':•h...DISCUSSIONS 2O Cobalt, Ag,Ni -2250Ma(150-300•) Muscovite-epidote 2650Ma (200-26(fC) Adularia 1100 Ma |  | Olivo, G. R., Gauthier, M., Williams-Jones, A. E., Levesque, M. (2001) The Au-Pd Mineralization at the Conceicao Iron Mine, ItabiraDistrict, Southern Sao Francisco Craton, Brazil: An Example of aJacutinga-Type Deposit. Economic Geology, 96 (1) 61-74 doi:10.2113/gsecongeo.96.1.61 | Journal (article/letter/editorial) | | The Au-Pd Mineralization at the Conceição Iron Mine, Itabira District, Southern São Francisco Craton... Quebec, Canada H3C 3P8 Abstract The Conceição mine, which is located in the Itabira district, southern...an altered Lake Superior-type iron-formation. The mine sequence consists of three metamorphosed lithostratigraphic...jacutinga consists of centimeter-scale layers of muscovite, specular hematite (hematite I), and octahedral...hydroxides, hematite (hematite III), kaolinite, muscovite, and tourmaline. The quartz vein is dismembered |  | Brugger, J., Etschmann, B., Chu, Y. S., Harland, C., Vogt, S., Ryan, C., Jones, H. (2006) THE OXIDATION STATE OF EUROPIUM IN HYDROTHERMAL SCHEELITE: IN SITU MEASUREMENT BY XANES SPECTROSCOPY. The Canadian Mineralogist, 44 (5) 1079-1087 doi:10.2113/gscanmin.44.5.1079 | Journal (article/letter/editorial) | | SA 5005, Australia and South Australian Museum, North Terrace, Adelaide, SA 5000, Australia BARBARA ETSCHMANN...Exploration and Mining, South Australian Museum, North Terrace, Adelaide, SA 5000, Australia YONG S. CHU...9700 South Cass Avenue, Argonne, Illinois 60439, USA CATHY HARLAND Australian Synchrotron Research Program...9700 South Cass Avenue, Argonne, Illinois 60439, USA STEFAN VOGT Experimental Facilities Division, Advanced...9700 South Cass Avenue, Argonne, Illinois 60439, USA CHRIS RYAN CSIRO Exploration and Mining, School |  | | Journal (article/letter/editorial) | | Oceanographic Institution, MS#8 Woods Hole, MA 02543, USA E-mail: hmarschall@whoi.edu 2 State Key Laboratory...mineralizing fluids and track fluid–rock interaction (Anglin et al. 1996). GEOCHRONOLOGY USING TOURMALINE Knowledge...was unaffected by later metamorphic overprints (Anglin et al. 1996). Single-mineral dating of tourmaline...the Miocene have been used in geochronology. muscovite biotite zircon (fission track) 200 apatite (fission...highest-quality blue Paraíba tourmaline from the Batalha mine, Brazil (the original discovery site) may demand |  | Stein, H. J., Sundblad, K., Markey, R. J., Morgan, J. W., Motuza, G. (1998) Re-Os ages for Archean molybdenite and pyrite, Kuittila-Kivisuo, Finland and Proterozoic molybdenite, Kabeliai, Lithuania: testing the chronometer in a metamorphic and metasomatic setting. Mineralium Deposita, 33 (4) 329-345 doi:10.1007/s001260050153 | Journal (article/letter/editorial) | | Colorado State University, Fort Collins, CO 80523±1482 USA (hstein@cnr.colostate.edu) H.J. Stein US Geological...Geological Survey, 910 National Center, Reston, VA 20192 USA K. Sundblad Department of Geology and Geochemistry...occurs as stringers in the tonalite. Pyrite and muscovite, however, occur as euhedral crystals and undeformed...cross-cut the foliation in primary biotite (Fig. 3). Muscovite laths and sericite needles are also common replacing...and pristine muscovite-sericite laths rim some grain boundaries. The sericite-muscovite is believed to |  | | Journal (article/letter/editorial) | | f • 1øC/m.y.for 2600 to 2550 Ma (rutlie-vein muscovite),•0.6øC/m.y. for 2550 to 2511 Ma (vein muscov...earlyquartz-calcite veins(nowall-rock kinematicallyto a late north-southcompressional alteration) 2e. Overprinting...gold-bearing quartz_+titunite mine,Robert andBrown, 1986a; Ferderber mine,Vu et al., 1987; Perronmine,Tessieret...U-Pb data ruled out a di- for this exists in the mine area. Elsewhere in the rect geneticlink betweenupper... We conducted23 incre- quartz-albite-biotite-muscovite-calcite-pyrite. xenolith appears massive, but |  | | Journal (article/letter/editorial) | | KALGOORLIE, SCHEELITE FROM THE MOUNT CHARLOTTE MINE, WESTERN AUSTRALIA: AN ISOTOPIC LINK BETWEEN GOLD...o Sr in scheeliteand fluid (Bell et al., 1989; Anglin, 1990). tourmalineand Pb in galenaand otherore...00 2329 2330 SCIENTIFIC COMMUNICATIONS muscovite-ankerite-pyrite assemblages (Mikuckiand Heinrich...minerafization (Kent and McDougall1995).Hydrothermal muscovite associated with shear-hosted lode goldmineralization...Kambalda,WesternAustralia: Lithos,v. 34,p. 127-157. Anglin,C.D., 1990,Preliminary Sm-Ndisotope analyses of |  | Jiang, Shao-Yong, Han, Fa, Shen, Jian-Zhong, Palmer, Martin R. (1999) Chemical and Rb–Sr, Sm–Nd isotopic systematics of tourmaline from the Dachang Sn-polymetallic ore deposit, Guangxi Province, P.R. China. Chemical Geology, 157 (1) 49-67 doi:10.1016/s0009-2541(98)00200-9 | Journal (article/letter/editorial) | | The Dachang Sn-polymetallic ore deposit ŽNandan County, Guangxi Province. is one of the largest Sn deposits...mesothermal Au deposits Že.g., King et al., 1988; Anglin et al., 1996.. Hence, this study is the first report...schematic form in Figs. 1–3. Changpo Žthe major mine in the Dachang deposit. contains three types of...1.. Several tourmaline samples from the Changpo mine ŽC8824-2, C8824-1, and C8821. have low REE abundances...precipitated in veins, together with quartz, muscovite or Li-micas, biotite, chlorite, arsenopyrite, |  | | Report (issue) | | GEOLOGIC MAP OF THE AENEAS VALLEY QUADRANGLE, OKANOGAN COUNTY, WASHINGTON by C. Dean Rinehart and Kenneth F....Geological Survey editorial standards or with the North American Stratigraphic Code. Any use of trade, product...biotite (locally partially altered to chlorite) and muscovite, with accessory allanite and apatite; commonly...1976; Fox and Rinehart, 1988; and Fox, 1994). In north-central part of quadrangle unit forms southern part...strike to the north in the Mount Bonaparte quadrangle (Fox, 1978) Toa Orthogneiss of Anglin (Eocene to |  | | Journal (article/letter/editorial) | | Geology, Appalachian State University, Boone, NC, USA ABSTRACT ARTICLE HISTORY Strong seismic anisotropy...et al. 2013). Phengite is a magnesium-bearing muscovite most commonly observed in high-pressure metamorphic...metamorphic rocks. The seismic anisotropy of a single muscovite crystal is very strong (AVP = 44.2%, AVS = 50...subduction of the Farallon and Kula plates beneath the North American plate from Late Jurassic through Tertiary...from Raymond and Bero (2015). many rock bodies north of latitude 38.5°N and are locally useful to the |  | MacKenzie, Doug, Farmer, Lauren, Moore, Jonathan, Craw, Dave (2017) Contrasting coeval paragenesis of gold and scheelite in an orogenic hydrothermal system, Macraes mine, New Zealand. Ore Geology Reviews, 80. 645-657 doi:10.1016/j.oregeorev.2016.08.011 | Journal (article/letter/editorial) | | scheelite in an orogenic hydrothermal system, Macraes mine, New Zealand Doug MacKenzie a, Lauren Farmer a,...graphite deposition and alteration of albite to muscovite. In contrast, scheelite with minor auriferous...Darbyshire et al., 1996; Heinrich et al., 1996; Anglin et al., 1996; Voicu et al., 2000; Kempe et al....2016 Elsevier B.V. All rights reserved. Macraes mine of New Zealand is an example of this latter deposit...The Macraes mine is in an orogenic deposit with no associated igneous body, and the mine area has historically |  | Guo, Zhijun, Li, Jinwen, Xu, Xinying, Song, Zeyou, Dong, Xuzhou, Tian, Jing, Yang, Yuncheng, She, Hongquan, Xiang, Anping, Kang, Yongjian (2016) Sm-Nd dating and REE Composition of scheelite for the Honghuaerji scheelite deposit, Inner Mongolia, Northeast China. Lithos, 261. 307-321 doi:10.1016/j.lithos.2016.03.006 | Journal (article/letter/editorial) | | Range; NE China 1.Introduction The Middle and North Great Xing'an Range (MNGXR) is located in northeastern...elevated REE concentrations (Ludden et al., 1984; Anglin et al., 1987), making it a potentially useful tracer...(Fig. 1b). The relatively uniform strata in the mine area include IP the Middle-Upper Ordovician Luohe...respectively (Guo et al., 2014). Throughout the Honghuaerji mine area, NE- and NW-trending faults are dominant, but...predominantly quartz with varying amounts of muscovite, biotite, apatite, plagioclase, K-feldspar, carbonate |  | | Journal (article/letter/editorial) | | rock, the Colombi+re "rhyolite", 13 km east of the mine dates that formation. The gold-bearing quartz vein...mineralization and hydrothermal alteration in the mine are superimposed on the metamorphic minerals. Hydrothermal...Abitibi subprovince, and particularly from Sigma Mine. These ages establish the timing of volcanism, regional...shown by stars. All other samples are from the Sigma Mine. U-Pb C H R O N O L O G Y O F A R C H E A N G...2672 ___23 Ma) [6] and auriferous vein-hosted muscovite (2579 + 10 Ma) [6] (the error for the 4°Ar/39Ar |  | | Journal (article/letter/editorial) | | 1127/0935-1221/2004/0016-0753 ground access provided by extensive mine operations within these deposits (Garofalo et al...1990; Wong et al., 1991; Kerrich & King, 1993; Anglin et al., 1996), and fluid inclusion (Robert & Kelly...1987; Boullier & Robert, 1992; GaMine Levels 17 North Depth (m) 600 shear zone-hosted, quartz-tourmaline...of the Sigma vein network (section: 5700 E of the mine database). Vein thickness is exaggerated for clarity...host high gold grades and are therefore important mine targets. Underground exploration has shown that |  | | Journal (article/letter/editorial) | | UK c CSIRO Exploration and Mining, PO Box 136, North Ryde, NSW 1670, Australia Received 14 March 2001;...while tourmalines from garnet-bearing biotite – muscovite schists that overly the lode-gold orebody are...1990; Mueller et al., 1991; Kotzer et al., 1993; Anglin et al., 1996; Frei and Pettke, 1996; Slack, 1996;...greenstone belt ( f 1 km wide and f 1.5 km thick) in the mine area, with outcrops of granitoid batholiths to the...metamorphic rocks. Late stage garnet-bearing muscovite – biotite pegmatite dikes (Rb – Sr age of 2078 |  | Tornos, F., Galindo, C., Crespo, J. L., Spiro, B. F. (2008) GEOCHEMISTRY AND ORIGIN OF CALCIC TUNGSTEN-BEARING SKARNS, LOS SANTOS, CENTRAL IBERIAN ZONE, SPAIN. The Canadian Mineralogist, 46 (1) 87-109 doi:10.3749/canmin.46.1.87 | Journal (article/letter/editorial) | | only in orogenic gold deposits (Kent et al. 1995, Anglin et al. 1996, Frei et al. 1998, Voicu et al. 2000)...porphyritic and fine-grained leucogranite (biotite + muscovite) and tourmaline-bearing microgranite and pegmatite...different from those of orogenic gold deposits (Anglin et al. 1996, Ghaderi et al. 1999, Oberthur et al... In granitic systems, the absence of primary muscovite is interpreted to be a critical factor in the...at relatively shallow depths in the absence of muscovite makes tungsten behave as an incompatible element |  | | Journal (article/letter/editorial) | | sequence yielded a U/Pb zircon age of 2769+6 –5 Ma (Anglin et al., 1988). Thin units of iron formation and...west to west-southwest and dips steeply to the north, was produced by D2. Generally, this foliation is...deformation. The early felsic dikes generally trend north-south, have a variable apparent thickness reaching...of ankerite, dolomite, calcite, plagioclase, muscovite (sericite), chlorite, and biotite are presented...plagioclase is almost pure albite (Ab97), the muscovite is phengitic, the chlorite has the composition |
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