| | Journal (article/letter/editorial) | Standk, 1958; Cech and Povondra, 1961; Novdk and Pelz, 1981; Cech, 1986). Thus a study of these occurrences...of (vi) consists of granular albite, quartz, muscovite and tourmaline (schorl, blue and green elbaite;...coarse-grained albite associated with subordinate muscovite, tourmaline (black schorl, dark blue and green...parts, consists of fine-grained quartz, albite, muscovite, tourmaline (black schorl to green elbaite), garnet...This subunit grades into the lepidolite subunit: muscovite is substituted by lepidolite, schorl by green | | | Journal (article/letter/editorial) | ne veins.A few narrow,undeformed, Proterozoie diabase dikesrepresent the ColumbiereRhyolite Sigmaporphyritic...'allrocktypesin the areaexceptthe Proterozoie diabase rhyolite dikes(Robert et al., 1983;Tessier,1990)...+_ 9 1 study.The earlierveinswerenotsampled. Muscovite in vein,Sigmamine m 2579 + 9 2 The later quar...Minerals:h = 4ĂžAr?9Ar hornblende,m = 4ĂžAr/3'9Ar muscovite, r = U-Pb %), commonly withscheelite, pyrite,andrarelywith...J-P.,1994, Timing puskasing J.-P.,Machado,N., and Pelz, P., of goldmineralization in theVal d'Ordistrict | | 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) | rutile (Wong et al., 1991) and Ar-Ar ages for muscovite (Hanes et al., 1992) from the hydrothermally altered...P 10 kilometres Gold Deposits Proterozoic Diabase dikes Archean Intrusive felsic rocks LT=late tectonic...by rutile and then quartz, apatite, scheelite, muscovite, 0361-0128/98/000/000-00 $6.00 and minor carbonate...metamorphism. Plagioclase was partially replaced by muscovite-1, chlorite-1, and carbonate. Laths of chlorite-1...Ti-MgFeâbearing phase, probably pyroxene. The assemblage muscovite-1 + chlorite-1 + rutile-1 + carbonate may represent | | | Journal (article/letter/editorial) | Ma (Hassan and Hashad, 1990; Rice et al., 1993; Pelz, 1996). One remarkable feature of the CED of Egypt...metatuffs, S1 is deïŹned by alignment of hornblende, muscovite and biotite ïŹakes. In deformed and foliated syn-tectonic...shear zone consisting of steeply dipping biotite, muscovite schists, sheared metagabbros and mica-rich mylonites...a foliated ïŹne-grained groundmass of biotite, muscovite, quartz, plagioclase and opaques. Metamorphic...mylonitic foliation is marked by aligned biotite and muscovite crystals and recrystallized feldspars and M | | Moghazi, A. M., Hassanen, M. A., Mohamed, F. H., Ali, S. (2004) Late Neoproterozoic strongly peraluminous leucogranites, South Eastern Desert, Egypt ? petrogenesis and geodynamic significance. Mineralogy and Petrology, 81 (1) 19-41 doi:10.1007/s00710-003-0021-5 | Journal (article/letter/editorial) | for Geosciences and Natural Resources, Hannover, Germany. Analytical precision is better than 3% for major...biotite (25%), K-feldspar (5%), garnet (3%), muscovite (3%), and chlorite (2%) with accessory apatite...defining the strong foliation in the metasediments. Muscovite occurs as platy crystals (0.2â0.05 mm) mainly...K-feldspar (20%), biotite (5%), garnet (4%) and muscovite (1%), Accessory minerals occur in very small proportions...96.10 0.29 0.62 0.09 0.63 B854 Leucogranite Muscovite Late Neoproterozoic strongly peraluminous leucogranites | | Bregar, M., Bauernhofer, A., Pelz, K., Kloetzli, U., Fritz, H., Neumayr, P. (2002) A late Neoproterozoic magmatic core complex in the Eastern Desert of Egypt: emplacement of granitoids in a wrench-tectonic setting. Precambrian Research, 118 (1) 59-82 doi:10.1016/s0301-9268(02)00062-1 | Journal (article/letter/editorial) | wrench-tectonic setting M. Bregar a, A. Bauernhofer a, K. Pelz b, U. Kloetzli c, H. Fritz a,*, P. Neumayr d a ...GeoForschungsZentrum Potsdam, Telegrafenberg C228, Potsdam, Germany c Laboratorium fuÌr Geochronologie, Institut fuÌr...include sericite, epidote, zoisite, chlorite and muscovite. Epidote and zoisite occur in altered plagioclase...matrix of quartz, biotite, chlorite, plagioclase9 muscovite and porphyroblasts of K-feldspar. A modal estimation...minerals are quartz, plagioclase, Kfeldspar, muscovite, biotite, fluorite; accessory minerals are garnet | | Seifert, Anne-Gret, Trumbore, Susan, Xu, Xiaomei, Zhang, Dachung, Kothe, Erika, Gleixner, Gerd (2011) Variable effects of labile carbon on the carbon use of different microbial groups in black slate degradation. Geochimica et Cosmochimica Acta, 75 (10) 2557-2570 doi:10.1016/j.gca.2011.02.037 | Journal (article/letter/editorial) | Biogeochemistry, P.O. Box 10 01 64, 07701 Jena, Germany Department of Earth System Science, University...Schiller University, Neugasse 25, 07743 Jena, Germany b Received 5 March 2010; accepted in revised form...deformed anticlines of East and South Thuringia, Germany. Slates are low-grade metamorphic rocks that form...carbon of illite, illiteâsmectite, chlorite, muscovite, quartz, pyrite/marcasite and minor amounts of...Max CN, Elementar Analysensysteme GmbH, Hanau, Germany). 2.2. Microorganisms and growth conditions S. | | BĂ©rubĂ©, Charles L., Olivo, Gema R., Chouteau, Michel, Perrouty, StĂ©phane, Shamsipour, Pejman, Enkin, Randolph J., Morris, William A., Feltrin, Leonardo, ThiĂ©monge, RaphaĂ«l (2018) Predicting rock type and detecting hydrothermal alteration using machine learning and petrophysical properties of the Canadian Malartic ore and host rocks, Pontiac Subprovince, QuĂ©bec, Canada. Ore Geology Reviews, 96. 130-145 doi:10.1016/j.oregeorev.2018.04.011 | Journal (article/letter/editorial) | tions, and diorites, which are cut by Proterozoic diabase dykes. The northern 85 boundary of the Pontiac...meta-volcanic rocks, iron formations 97 and diabase dykes, and for a comprehensive description of the...plagioclase, K-feldspar, quartz, biotite, chlorite, muscovite, epidote 123 and Fe-Ti oxides (Derry, 1939)...plagioclase, 127 hornblende, biotite, quartz, muscovite, and K-feldspar. 128 2.3. Mafic dykes 129 ...characterized by micro- 138 cline, albite, biotite, muscovite, calcite, ferroan-dolomite, ankerite, pyrite, | | | Journal (article/letter/editorial) | assemblages. 40Ar/39Ar ages obtained from syn-tectonic muscovite of ca. 590 Ma give evidence for a synchronous...61498 Ma (Stern and Hedge, 1985) and 40Ar/39Ar muscovite ages of 59590.5 Ma for the western strike-slip...3/4, 243 â256. 381 Bregar,M., Bauernhofer, A., Pelz, K., KloÌtzli, U., Fritz, H., Neumayr, P., in press...zones. Geology 16, 867 â 870. Messner,M., Fritz, H., Pelz, K., Unzog, W., 1996. Beckenbildung in verschiedenen...R.A.J., 1996. Microtectonics. Springer-Verlag, Germany. Pearce, J.A., Harris, N.B.W., Tindle, A.G., 1984 | | Farahat, Esam S., Zaki, Rafat, Hauzenberger, Christoph, Sami, Mabrouk (2011) Neoproterozoic calc-alkaline peraluminous granitoids of the Deleihimmi pluton, Central Eastern Desert, Egypt: implications for transition from late- to post-collisional tectonomagmatic evolution in the northern Arabian-Nubian Shield. Geological Journal, 46 (6) 544-560 doi:10.1002/gj.1289 | Journal (article/letter/editorial) | microgranular enclaves and intruded by leuco- and muscovite granites. Geochemically, different granitoid phases...common parent. On the other hand, the late phase muscovite granites have distinctive geochemical features...this phase of leucogranites contains muscovite, so the name muscovite granite will be used herein. The biotite...are zircon, titanite, pyrite and magnetite. The muscovite granites are remarkably fresh, coarsegrained with...(35â40%), quartz (33â39%), K-feldspar (21â25%) and muscovite (3â6%). Albite (Ab95â100) forms a touching framework | | | Journal (article/letter/editorial) | Opaque phases Apatite Zircon Xenotime Monazite Muscovite (i.e. sericite), chlorite, carbonate Yilmaz et...Titanite Opaque phases Apatite Zircon Fluorite Muscovite (i.e. sericite), Chlorite, cancrinite Yilmaz et...Turkey. Lithos 97:193â218 Bregar M, Bauernhofer A, Pelz K, Kloetzli U, Fritz H, Neumayer P (2002) A late | | NEUMAYR (email: ), P., HOINKES, G., PUHL, J., MOGESSIE, A., KHUDEIR, A. A. (1998) The Meatiq dome (Eastern Desert, Egypt) a Precambrian metamorphic core complex: petrological and geological evidence. Journal of Metamorphic Geology, 16 (2) 259-279 doi:10.1111/j.1525-1314.1998.00132.x | Journal (article/letter/editorial) | indicate that peak M2 PâT conditions exceeded muscovite and staurolite stabilities. Diffusional equilibration...1996). The S3 foliation planes are outlined by muscovite and THE ME ATIQ DO ME 261 Fig. 1. Outline...zircons; 5 Fritz et al. (1996), 40Ar/39Ar on muscovite; 6 reported in Sturchio et al. (1983a), Rb/Sr...588 Ma, respectively, with 40Ar/39Ar dating of muscovite, which is within the range of the age of the synkinematic...NM116, Table 2). Embayed grain boundaries of muscovite and quartz in contact with newly formed alkali | | | Journal (article/letter/editorial) | and 2670 Ma; and a 141 younger, S-type garnet-muscovite granite series dated between 2660 and 2642 Ma... al., 1997; Daigneault et al, 2002). Finally, diabase dikes, presumably related to mafic 144 dike swarms...occur within a matrix 197 of ribonned chlorite-muscovite (sericite)-quartz-carbonate. Crystal-plastic textures...(Villa et al., 1996). 376 Using experimental muscovite diffusion coefficients yielded by Harrison et...frequently sericite or poly-crystalline white mica (muscovite?) aggregates and it would be 381 thus reasonable | | Helmy, HassanM., Kaindl, Reinhard, Fritz, Harald, Loizenbauer, Jïżœrgen (2004) The Sukari Gold Mine, Eastern Desert?Egypt: structural setting, mineralogy and fluid inclusion study. Mineralium Deposita, 39 (4) doi:10.1007/s00126-004-0426-z | Journal (article/letter/editorial) | veins contain quartz, calcite, albite and minor muscovite. Zircon and monazite are common accessory minerals...rock composed of quartz, albite, sericite and muscovite with minor pyrite. Harraz (1991) identiïŹed three...veins and small veinlets, quartz, sericite and muscovite dominate beside disseminated or massive pyrite...Ore Geol Rev 19:137â164 Bregar M, Bauernhofer A, Pelz K, KloÌtzli U, Fritz H, Neumayr P (2002) A late | | Moussa, Ewais M.M., Stern, Robert J., Manton, William I., Ali, Kamal A. (2008) SHRIMP zircon dating and Sm/Nd isotopic investigations of Neoproterozoic granitoids, Eastern Desert, Egypt. Precambrian Research, 160 (3) 341-356 doi:10.1016/j.precamres.2007.08.006 | Journal (article/letter/editorial) | ilmenite. The secondary alteration minerals are muscovite (alteration product of feldspar) and chlorite...secondary alteration minerals are sericite and muscovite. The QAP modal analysis (Streckeisen, 1976) listed...to chlorite), opaques together with fluorite, muscovite, zircon, monazite, allanite and apatite as accessory...= 8â15), quartz and biotite. Minute flakes of muscovite are present. Sphene, zircon and magnetite are...granodioriteâadamellite and leucogranite (552 Ma), muscovite trondhjemite (516 Ma) orogenic Pan-African suites | | Abu Sharib, Ahmed S.A.A., Maurice, Ayman E., Abd El-Rahman, Yasser M., Sanislav, Ioan V., Schulz, Bernhard, Bakhit, Bottros R. (2019) Neoproterozoic arc sedimentation, metamorphism and collision: Evidence from the northern tip of the Arabian-Nubian Shield and implication for the terminal collision between East and West Gondwana. Gondwana Research, 66. 13-42 doi:10.1016/j.gr.2018.09.004 | Journal (article/letter/editorial) | e Brennhausgasse 14, 09596 Freiberg/Sachsen, Germany Corresponding author NU * PT b Geology Department...represented by preferentially-oriented biotite, muscovite and quartz and graphite (Fig. 5a and c). Very...quartz are wrapped around by CE biotite and muscovite mylonitic foliation, SMY, (Fig. 5d). AC The...crystals of MA sillimanite replace biotite, muscovite and cordierite (Fig. 8a and b). In the Hammamat...the D parallel alignment of minute chlorite, muscovite and a fewer biotite crystals (Fig. 9a( . PT E | | Abu El-Enen, Mahrous M., Abu-Alam, Tamer S., Whitehouse, Martin J., Ali, Kamal A., Okrusch, Martin (2016) PâT path and timing of crustal thickening during amalgamation of East and West Gondwana: A case study from the Hafafit Metamorphic Complex, Eastern Desert of Egypt. Lithos, 263. 213-238 doi:10.1016/j.lithos.2016.01.001 | Journal (article/letter/editorial) | Geographie und Geologie, Am Hubland, 97074 WĂŒrzburg, Germany f Norwegian Polar Institute, TromsĂž, Norway b ...plagioclase and biotite, and occasionally containing muscovite, garnet, staurolite, kyanite, sillimanite, and...is deïŹned by preferred alignment of biotite, muscovite (Fig. 3a), sillimanite, and plagioclase. The metapelitic...polarized light). (Fig. 3c) in addition to quartz, muscovite, biotite and graphite, which are commonly arranged...expense of S2 biotite and associated with S2 muscovite, are wrapped around garnets. This sillimanite | | | Journal (article/letter/editorial) | 40Ar/39Ar cooling ages is shown. Hbl: hornblende; Mu: muscovite. In inset map NFS = Najd Fault System. tamination...Earth Sci. 3: 17â39. Bregar, M., Bauernhofer, A., Pelz, K., Kloetzli, U., Fritz, H. & Neumayr, P. (1999):...â Review Article, 55 pp. Messner, M., Fritz, H., Pelz, K. & Unzog, W. (1996): Beckenbildung in verschiedenen | | | Book (edition) | carnallite. sylvite and k.ieseritc; from Stassfurt. Germany. Abrazite. syn. of gismondine or of phillipsite...material. Achlusite, m ixture of paragonite and muscovite. W.F. Pett.ard ( 1 9 1 0) Car. Mi11. Tasmania...given to artificial corundum. Adamsite. var. of muscovite. C.U. Shepard ( 1 857) in E. Hitchcock. Rept....Z=2 fPDF 18-873 ). (TL) Johanngcorgcnstadt. Saxony, Germany. Fomiula and unit cell by R.J. Davis, M.H....alteration product of spodumcne. A mixture of muscovite and albite. (TL) Goshen. Massachusells. USA. Named | | Lundmark, Anders Mattias, Andresen, Arild, Hassan, Mohamed A., Augland, Lars Eivind, Boghdady, Gamal Yehia (2012) Repeated magmatic pulses in the East African Orogen in the Eastern Desert, Egypt: An old idea supported by new evidence. Gondwana Research, 22 (1) 227-237 doi:10.1016/j.gr.2011.08.017 | Journal (article/letter/editorial) | ± 0.3 Ma and 595.9 ± 0.5 Ma from syntectonic muscovite in the EDSZ (and what may be a slightly younger...Research 28, 1â74. Bregar, M., Bauernhofer, A., Pelz, K., Kloetzli, U., Fritz, H., Neumayr, P., 2002...Adjacent Areas. Vieweg & Sohn Verlag, Braunschweig Germany, pp. 17â68. Farahat, E.S., Mohamed, H.A., Ahmed | | Gaillard, Nicolas, Williams-Jones, Anthony E., Clark, James R., Lypaczewski, Philip, Salvi, Stefano, Perrouty, StĂ©phane, Piette-LauziĂšre, Nicolas, Guilmette, Carl, Linnen, Robert L. (2018) Mica composition as a vector to gold mineralization: Deciphering hydrothermal and metamorphic effects in the Malartic district, Quebec. Ore Geology Reviews, 95. 789-820 doi:10.1016/j.oregeorev.2018.02.009 | Journal (article/letter/editorial) | Late-tectonic igneous activity is represented by biotite-muscovite S-type granite intrusions (e.g., Lamotte and Preissac-Lacorne...white mica (Fig.17; Table 2). A trend toward muscovite endmember compositions is indicated by a progressive...increases in Na and Ba (towards a paragonitic muscovite composition). A substitution of Na and Ba for...bioÆte annite ) and white white mica mica (a muscovite ) solid solutions were calculated from the thermodynamic...revealed systematic variations from near end-member muscovite in the metasedimentary rocks beyond the ore shell | | Johnson, Peter, Halverson, Galen, Kusky, Timothy, Stern, Robert, Pease, Victoria (2013) Volcanosedimentary Basins in the Arabian-Nubian Shield: Markers of Repeated Exhumation and Denudation in a Neoproterozoic Accretionary Orogen. Geosciences, 3 (3) 389-445 doi:10.3390/geosciences3030389 | Journal (article/letter/editorial) | pendants in the Baqarah complex as kyanite-quartz-muscovite and kyanite-quartz-biotite schists. The Hali group...coarse-grained granite with biotite and(or) amphibole, diabase, siltstone, meta (biotite-bearing) rhyolite, and...schists containing mixtures of chlorite, sericite, muscovite, biotite, hornblende, epidote, diopside, minor...quartz-feldspar aggregates. The matrix contains chlorite, muscovite, epidote, and carbonate. On a QFL diagram, the... Thesis, Technical University Berlin, Berlin, Germany, 2000. Kemp, J. The Kuara formation (northern Arabian | | | Report (volume) | Rand (Ontario Kirkland, Hudson Rand) mine Tundra quarry Wright-Hargreaves mine Sylvanite mine Toburn (Tough-Oakes...mine Riverside (Bazooka) mine Canada Black Granite quarry Horne mine Mines along highways 101 north and 111...gabbro, rhyolite, feldspar porphyry, and chrome-muscovite (fuschite) rock. Inactive mines and prospects...rhyolite, le porphyre feldspathique et la roche Ă muscovite chromifĂšre (fuschite). La plupart des sites sur...listed systematically as follows: name of the mine, quarry, or occurrence; minerals and/or rocks found (shown | | | Journal (article/letter/editorial) | 0.16â0.34 (El- 14 Shazly and Khalil, 2014). Muscovite (Si < 6.3 atoms per formula unit for 22 oxygens)...2014). In all other areas, a sericitic variety of muscovite occurs as a 17 minor phase in some samples (Table...patterns, and 6 biotite partially replaced by muscovite/ phengite. 7 The predominant mineral assemblage...and 18 matrix quartz, K-feldspar, biotite, muscovite, and minor epidote, titanite, rutile, apatite...fine-grained quartz, feldspar, biotite 21 and muscovite (Tables 2 and 5). DB-140 is a coarse-grained dike | | | Journal (article/letter/editorial) | and clay-forming minerals (e.g. sericite and muscovite), and by addition of kerosene which passivates...carbonate-rich. The presence of fuchsite (Cr-muscovite) in the former indicates that it is typical SC...also recorded in the overburden of the altered muscovite albite granites hosting Hamrat Ghanam gold occurrence...minerals and clayforming minerals (e.g. sericite and muscovite), and by addition of kerosene which passivates...and clay-forming minerals (e.g. sericite and muscovite), and by addition of kerosene which passivates |
|