 | Casas, Josep M., Castiñeiras, Pedro, Navidad, Marina, Liesa, Montserat, Carreras, Jordi (2010) New insights into the Late Ordovician magmatism in the Eastern Pyrenees: U–Pb SHRIMP zircon data from the Canigó massif. Gondwana Research, 17 (2) 317-324 doi:10.1016/j.gr.2009.10.006 | Journal (article/letter/editorial) | | abundant than plagioclase, which is altered to sericite. Matrix minerals are recrystallized quartz, biotite...quartz and amoeboid feldspar. Mica is scarce, and muscovite is more abundant than biotite. Epidote and opaque...Chaine hercynienne des Pyrénées Orientales. Bulletin Societé Géologique de France 7, 673–731. Ayora, C...Ordovicien dans la région de Pierrefitte (Hautes Pyrénées): rhyolites calco-alcalines et basaltes alcalins...Pyrenees and the Montagne Noire (France). Bulletin Societé Géologique de France 176, 269–282. Delaperrière |  | | Book | | Demange Centre de Geosciences, Ecole des Mines Paris, France Fluid and melt inclusions in rock-forming minerals...44–49) by Jacques Touret, Ecole de Mines Paris, France DEMANGE_Book.indb iii 4/19/2012 1:43:36 PM CRC...research activities at the École des Mines in Paris, France, he headed various research studies. This book...part of this facies. The white micas are not muscovite but phengite. Biotite and feldspar are excluded...from the isograd biotite in up to the isograd muscovite out, the limit of high grade metamorphism can |  | Maffini, M. Natalia, Wemmer, Klaus, Radice, Stefania, Oriolo, Sebastián, D'Eramo, Fernando, Coniglio, Jorge, Demartis, Manuel, Pinotti, Lucio (2017) Polymetallic (Pb-Zn-Cu-Ag ± Au) vein-type deposits in brittle-ductile transtensional shear zones, Eastern Sierras Pampeanas (Argentina): Age constraints and significance for the Late Paleozoic tectonic evolution and metallogenesis. Ore Geology Reviews, 89. 668-682 doi:10.1016/j.oregeorev.2017.07.003 | Journal (article/letter/editorial) | | alteration related to metallic ore deposition in the Las Guindas and Oro districts. The obtained ages postdate...veintype deposits from two little known districts, Las Guindas and Oro, situated in the Sierra de Comechingones...from north to south, three main districts: Oro, Las Guindas and Piedra Blanca (Fig. 1b). The individual...vein systems in the Las Guindas and Oro districts. In the two selected study areas, Las Guindas and Oro districts...1.1. Orientation and along-strike continuity The Las Guindas district is made up of two major mineralized |  | | Report (issue) | | 116.1 9 D336-6 20.0942 -74.765 Pegmatite Muscovite K/Ar 122 5 CU22 CV139a 20.1028 20.1108 -74...4264 -75.8608 Pegmatite Unknown, whole rock? Muscovite K/Ar 93.3 4 Comments Cuba—Continued All locations...reported analytical data. Doubt it was actually muscovite, contained less than 1% K2O. Location approximate...others, 2004 Palo Seco quarry, coarse grained. Hall and others, 2004 Palo Seco quarry, coarse grained. P...commun. cited in Hall and others (2004). Palo Seco quarry, coarse grained. Hall and others, 2004 Small |  | | Journal (article/letter/editorial) | | Auvergne, CNRS, IRD, OPGC, F-63000 ClermontFerrand, France; V.Bosse@opgp.univ-bpclermont.fr (2) Institut für...NU age, tM the monazite U-Pb age and tW the muscovite-whole rock Rb-Sr age (Fig. 3a). As monazite ages...starting assumption. Inheritance affects most muscovite ages and a few biotite ages in an irregular geographic...petrologically careless/careful way is given by the muscovite-sericite reaction described by Maineri et al. (2003)...come in two varieties: magmatic muscovite, aged 8.5 Ma; and sericite, reset at 7 Ma at a well-constrained |  | | Journal (article/letter/editorial) | | Trimouns Quarry Luzenac, Ariège, France Freddy Marty Rue de l’Hôpital 11230-Chalabre France In recent...recent decades, the Trimouns quarry has become well known as a source of outstanding crystals of several...located in the Ariège Departement of southwestern France, 6 km northeast of the village of Luzenac, 40 km...reference to the three peaks that overlook the quarry. Langue d’Oc is a regional language of Latin The...today in southern France, in the region known as Languedoc—the equivalent in northern France is langue d’oïl |  | | Journal (article/letter/editorial) | | de San Luis is part of the Sierras Pampeanas Orientales (Eastern Pampean Ranges, EPR) that belong to...(López de Luchi, 1986, 1993) together with the Las Chacras –Potrerillos (Brogioni, 1993; López de Luchi...a central pink to gray equigranular biotite – muscovite monzo/leucomonzogranite (Unit 2). Gray to greenish...hornblende, and sericite and clays for plagioclase. Locally, some accessory muscovite plates are recognized...or is included in the amphibole. The biotite – muscovite monzogranite (Unit 2) is composed of medium to |  | Morbidelli, Paola, Tucci, Patrizia, Imperatori, Claudio, Polvorinos, Angel, Preite Martinez, Maria, Azzaro, Ettore, Hernandez, Maria Jesus (2007) Roman quarries of the Iberian peninsula: "Anasol" and "Anasol"-type. European Journal of Mineralogy, 19 (1) 125-135 doi:10.1127/0935-1221/2007/0019-0125 | Journal (article/letter/editorial) | | 87Sr/86Sr. Key-words: anasol, Spain, Portugal, Roman quarry, petrography, geochemistry, archaeometric implications...similar characteristics (Italy, Iberian peninsula, France, the Balkan countries, etc.) (Pensabene, 1994;...(”marmor carystium”, from the name of the well-known quarry at Karystia, southern Euboea, Greece) was extremely...quarried in five locations (Spain: Macael – Almeria; Las Cabreras and Los Covachos – Almaden de la Plata;...and “anasol”-type quarries (Almaden de la Plata: Las Cabreras, Los Covachos; Extremoz: Viana do Alentejo |  | | Journal (article/letter/editorial) | | National G y p s u m C o . quarry (formerly the Huron-Portland Ce ment Co. quarry)—Alpena barite, calcite...marcasite, pyrite, sphalerite, strontianite (r) Paxton quarry—Paxton calcite, chalcopyrite, dolomite, marcasite...Silica C o . quarry (c)—Rockwood calcite, celestite, fluorite, quartz, sulfur (r) Sibley quarry (c)—Trenton... pyrite, sphalerite (r), vivianite (r) Cheney quarry (outcrops in the vicinity)—Imperial Heights (near...Wallace Stone C o . quarry Iosco C o u n t y National G y p s u m C o . quarry—National Baraga C o |  | | Report (volume) | | ............. Technical description of a slate quarry............................. PART II. SLATE DEPOSITS............ 138 GLOSSARY OF GEOLOGICAL AND SLATE-QUARRY TERMS ....................... 146 INDEX .........Merrill quarry at Brownville, Me................................. 66 XIII. Old Bangor quarry (north-northeast...end), Pennsylvania........... 76 XIV. Old Bangor quarry (south-southwest end), Pennsylvania ............. 76 XV. Derricks and carriers, Old Bangor quarry, Pennsylvania ........... 78 XVI. Map of Slatington |  | | Journal (article/letter/editorial) | | consist of zoned tourmaline ( f 90%) and ( f 10%) muscovite, quartz, apatite, rutile and weathered pyrite...tourmaline prisms (grey), and minor amounts of muscovite (white) under plane-polarized light. 232 S...and iron oxides, and encompass developments of muscovite and biotite that express minor alteration. The...The light bands are composed mainly of muscovite, sericite, quartz and plagioclase (oligoclase) with advanced...are accompanied by minor amounts of calcite and muscovite and are considered to be remobilised from nearby |  | | Report (issue) | | ................................. 19 Quartz-sericite schist..................... 19 Chlorite-actinolite............................................ 129 Las Palmas-Santa Elena deposits ......................... 138 El Cairo quarry....................................... 140 Neira quarry.................................................... 164 La Solita-Las Brisas deposit...................... 164 Other...Plagioclase (An«Q to An fl Biotite 8 to 40 Muscovite or sericite 4 to 20 Chlorite (mostly after biotite) |  | | Journal (article/letter/editorial) | | hydrothermal quartz, feldspars, chlorite, titanite, muscovite, sericite, prehnite, clinozoisite, laumontite, saussurite...Lorenc 1988), and light fine-grained biotite – muscovite granite. The latter occurs either as dykes or...by Rb – Sr method at 347 ± 12 Ma and biotite – muscovite granite at 330 ± 6 Ma (Oberc-Dziedzic et al. 1996)...Massif, SW Poland. The black dot indicates the quarry, where samples were collected. SS – Sienice-Strzelin...collected in a large active quarry located east of the city of Strzelin. The quarry is situated within a thick |  | | Report (volume) | | geographic distribution............................. 133 Quarry structure................................................. 169 Technical description of a slate quarry................................... 171 Methods.................. Glossary of geologic and slate-quarry terms............................... Index.......in Phoenix quarry, Windgap, Pa....................... VI. A, Banded slate from Phoenix quarry, Windgap....... XI. A, Thin section of slate from Merrill quarry, Brownville, Maine; B, Cleavage banding in shales |  | | Journal (article/letter/editorial) | | the product of the mechanical destruction of muscovite or biotite. However, if we consider the hydrolysis...2 K + + 2 (OH)- + 6 SiO 2 Orthoclase water muscovite it should be possible to destabilize orthoclase...orthoclase (potassic feldspar) and to produce muscovite. One of the early equilibria which one will encounter...during the hydrolysis of a granite is that between muscovite and orthoclase. In fact, we have observed evidence...in the granite massif of Parthenay (Deux-S~vres, France). At the La Pagerie outcrop the initial rock has |  | Haeberlin, Y., Moritz, R., Fontbote, L., Cosca, M. (2004) Carboniferous Orogenic Gold Deposits at Pataz, Eastern AndeanCordillera, Peru: Geological and Structural Framework, Paragenesis, Alteration,and 40Ar/39Ar Geochronology. Economic Geology, 99 (1) 73-112 doi:10.2113/gsecongeo.99.1.73 | Journal (article/letter/editorial) | | the vein wall rocks, consisting of pervasive muscovite alteration with minor chlorite, carbonate minerals...strong bleaching in plutonic rocks, and of weak muscovite and chlorite alteration in sedimentary rocks....published 329 Ma U/Pb age for the granodiorite. A muscovite and a biotite sample from an aplite dike yielded...322.1 ± 2.8 and 325.4 ± 1.4 Ma, respectively. Muscovite samples from alteration intimately associated...country rocks. They drew attention to a 287 Ma K/Ar muscovite age of the mineralization that significantly postdated |  | Skirrow, R.G, Camacho, A, Lyons, P, Pieters, P.E, Sims, J.P, Stuart-Smith, P.G, Miró, R (2000) Metallogeny of the southern Sierras Pampeanas, Argentina: geological, 40Ar–39Ar dating and stable isotope evidence for Devonian Au, Ag–Pb–Zn and W ore formation. Ore Geology Reviews, 17 (1) 39-81 doi:10.1016/s0169-1368(00)00004-4 | Journal (article/letter/editorial) | | mesothermal lode Au Ž"Cu " Ag. in the Sierra de Las Minas and Sierras de Cordoba yields ´ Devonian 40Ar–...veining in the El Guaico district Ž386 " 4 Ma, sericite., and W-bearing quartz vein mineralization in...Ramon ´ and El Morro districts which yielded muscovite ages of 366 " 1 and 363 " 1 Ma, respectively....including the host to Ni–Cu sulfide mineralization at Las Aguilas in the Sierras de San Luis ŽFig. 1., occurred...provincesa . Age b Ni, Cu, Co, PGE, Au, Cr Ordovician Las Aguilas–Virorco ŽSL. Au, Ag, Cu, W, U Devonianc |  | Kesler, S. E., Hall, C. M., Russell, N., Pinero, E., Sanchez, R. C., Perez, M. R., Moreira, J. (2004) Age of the Camaguey Gold-Silver District, Cuba: Tectonic Evolution and Preservation of Epithermal Mineralization in Volcanic Arcs. Economic Geology, 99 (5) 869-886 doi:10.2113/gsecongeo.99.5.869 | Journal (article/letter/editorial) | | through Ar/Ar closure temperatures for adularia and muscovite at about 71 Ma and are slightly younger than the...through roughly similar closure temperatures for sericite, illite, and alunite at about 80 Ma, which is...Contramaestre, Guamiro and Aguilar Formations GUAIMARO LAS TUNAS Caobilla Formation Ophiolite Complex Bahamas...Intrusive Rock Plagiogranite Volcanic Rock Town Las Parras Algarrobo Jacinto (CSE-22-36, 22-41) Camagüey...SibanicuLas Tunas Florencia Golden Hill 78°W LAS TUNAS Majibacoa (18) 77°W FIG. 3. A) Geology of |  | Munteanu, Marian, Marincea, Stefan, Kasper, Haino Uwe, Zak, Karel, Alexe, Veronica, Trandafir, Vasile, Saptefrati, George, Mihalache, Angela (2004) Black chert-hosted manganese deposits from the Bistritei Mountains, Eastern Carpathians (Romania): petrography, genesis and metamorphic evolution. Ore Geology Reviews, 24 (1) 45-65 doi:10.1016/j.oregeorev.2003.08.004 | Journal (article/letter/editorial) | | Carbonate schists. bqt = Black quartzites. scls = Sericite – chlorite schists. Corg = organic carbon. nd...al., 1976) is thrust on (2) the Tulghes Group (sericite – chlorite schists, metarhyolites, quartzites...Fig. 3): Tg1 (quartzites and quartz –sericite schists), Tg2 (sericite– chlorite schists F organic matter...metal sulfide deposits, sericite –chlorite schists and greenschists) and Tg4 (sericite– chlorite schists,...because of the organic matter that occurs in the sericite – chlorite schists and black cherts. ECMD are |  | | Book (volume) | | South Africa François M. Roure, Rueil-Malmaison, France The Geology of series seeks to systematically...CNRS, Université de Lille 1, Villeneuve d’Ascq, France J. Colmenar Departamento de Geologia and Faculdade...Contributors Contributors xi M. Padel BRGM, Orléans, France D. Pastor-Galán Center for Northeast Asian Studies...Saxothuringian/Armorican boundary (northernmost France), correlative to the east with the Saxothuringian/Moldanubian...Espagne), Bulletin de la Société Géologique de France 19: 385–393 Bard JP, Moine B (1979) Acebuches amphibolites |  | | Journal (article/letter/editorial) | | leucogranites ultimately transformed into quartz–sericite greisens), are the most remarkable features that...and biotite broken down into aggregates of sericite–muscovite and anhedral hematite are characteristic...biotite. A few subhedral booklets of interstitial muscovite of probable late primary origin are present in...in euhedral to subhedral grains associated with sericite in late aggregates. Fluorite is also an interstitial...in quartz. Secondary phases are clay minerals, sericite, chlorite, and Fe-oxide/hydroxide. Microcline |  | Schnapperelle, S., Mezger, J.E., Stipp, M., Hofmann, M., Gärtner, A., Linnemann, U. (2020) Polyphase magmatic pulses along the Northern Gondwana margin: U-Pb zircon geochronology from gneiss domes of the Pyrenees. Gondwana Research, 81. 291-311 doi:10.1016/j.gr.2019.11.013 | Journal (article/letter/editorial) | | Pyrenean gneiss domes used Rb-Sr whole rock and muscovite isochrones to calculate crystallisation ages of...granite (SC) SC is a leucocratic, holocrystalline, muscovite alkali granite with minor biotite. It is considered...is taken from a 20–30 m thick garnet-bearing muscovite alkali ro granite dike within the eastern Hospitalet...also recorded. 4.2.3. WP3 WP3 is an alkali muscovite granite from the northeast Hospitalet dome, SE...2001. The Canigou orthogneisses (Eastern Pyrenees, France , Spain): an Early Ordovician rapakivi granite |  | Amponsah, Prince Ofori, Salvi, Stefano, Béziat, Didier, Baratoux, Lenka, Siebenaller, Luc, Nude, Prosper Mackenzie, Nyarko, Richard Scriven, Jessell, Mark W. (2016) The Bepkong gold deposit, Northwestern Ghana. Ore Geology Reviews, 78. 718-723 doi:10.1016/j.oregeorev.2015.06.022 | Journal (article/letter/editorial) | | Développement, Observatoire Midi-Pyrénées, 14 Av. Edouard Belin, F-31400 Toulouse, France Azumah Resources Ghana...characterized by the presence of chlorite, calcite, sericite, quartz and disseminated pyrite, arsenopyrite...assemblage consisting of chlorite + calcite + sericite + quartz + sulphides. Graphitic layers within...observed include chlorite–calcite–epidote plus sericite, actinolite and albite while amphibolite facies...mineral inclusions include pyrrhotite, rutile and muscovite. (d) An arsenopyrite grain showing gold grains |  | | Report (chapter) | | monotonous succession of alternating biotite-muscovite schists and quartzites with intercalated pegmatites...micaschists continuously grade into injected muscovite-biotite schists, with quartzites and several generations...Sims et al. 1997) are injected muscovite-biotite and biotite muscovite schists or gneisses, with intercalated...and the 'Las Aguilas Group' of Sims et al. 1997). The most prominent occurrences are at Las Aguilas in...mentioned in the text which are: 1, Bemberg; 2, Las Verbenas; 3, Gasparillo; 4, Tamboreo; 5, Realito |  | | Journal (article/letter/editorial) | | characterised by pale green celadonitic fluoro-muscovite and, in the m o s t intense zone of alteration...association of pale green celadonitic fluoro-muscovite with mineralisation at Salgadinho and most other...characterised by the presence of abundant pale green sericite. 195 sedimentation. The sequence at Salgadinho...relatively quartz-rich at the base and richer in green sericite and sulphides in the upper portion. T h e most...the presence and abundance of argillic minerals, sericite, chlorite, pyrite, quartz and siderite. In both |
|
