 | | Journal (article/letter/editorial) | | Springer-Verlag1988 The Miocene-Pliocene Macusani Volcanics, SE Peru I. Mineralogy and magmatic evolution...Canada, 1470, Lima 13, Peru Abstract. The Miocene-Pliocene Macusani volcanics, SE Peru, outcrop in three...activity from 10 to 4 Ma in the Macusani field. The volcanics in the Macusani basin comprise crystal-rich...is essentially constant throughout the entire Macusani field. Two distinct generations of plagioclase...Miocene-Pliocene peraluminous volcanics from the Macusani area, SE Peru. Compared to previously described peraluminous |  | | Journal (article/letter/editorial) | | solution" in Macusani glass,Peru. CarnegieInst. Wash. Yeor Booh 68,339 342. A natural glass, presumably...origin, contains andalusite, quartz, chromite, gahnite, and small rosettes oI "B-quartz solid solulion...about 950' C. X-ray study indicates that braunite*glass is formed at this temperature. The mineral is reddish-black...M og. 37, 5 19-520 from Potrerillos, Atacama Province, R. J. Dlvrs AND M. H. HBv (1969) The cell-contents |  | | Journal (article/letter/editorial) | | minerals, pyrochlore-group minerals, ferrotapiolite, gahnite, zircon, fluorapatite, native bismuth and triplite...minor garnet, accessory beryl (aquamarine) and gahnite. The internal structure of the pegmatite is irregular;...very rare columbite, fluorapatite and zircon, gahnite is a typical minor accessory mineral. Deformation...BiTaO4 (BiMα), mimetite (AsLα), CaNb2O6 (CaKα), gahnite (ZnKα), stibiotantalite (SbLα), UO2 (UMα), tungsten...Mn-poor but Mg-enriched garnet and the presence of gahnite (Novák, 1988; Novák et al., 1994). Interpretation |  | | Journal (article/letter/editorial) | | work has been conducted on rocks of the Superior Province of Manitoba, Canada (e.g. Cerny et al. 1981; Goad...that a 'fine-grained crystalline border encloses glass (isotropic) studded with radial groups of larger...O-undersaturated melts in experiments with Macusani glass invariably yielded finegrained sodic albite-quartz...concentrations of garnet, tourmaline, muscovite and gahnite. Citing bedding and cross-cutting structures from...composite (e.g. Fenn 1986); and (3) the Macusani rhyolitic glass (London et al. 1989). Two widely held |  | | Journal (article/letter/editorial) | | albite, K-feldspar, columbite–tantalite minerals, gahnite, electron microprobe, pegmatite evolution. 1....Namivo and Mólucué rivers, in the Zambézia province. A geochemical evolution occurs from green and...tourmaline, a tabular variety of albite, cassiterite, gahnite, columbite–tantalite, rutile, uranium minerals...are from the OIZ, IIZa and Cc and tourmaline and gahnite were only found in the OIZ. The major elements...pegmatite-aplite dike, USA (Morgan & London, 1999). 8. Gahnite Gahnite was rarely found in the OIZ and shows a darker |  | | Journal (article/letter/editorial) | | and might have solidi®ed partially or totally to glass before crystallization commenced. Geothermometry...components (lowering the solidus of the melt or glass system) and other excluded components (e.g., K)...450 °C. Based on the general observation that the glass transition in hydrostatic silicate melts occurs...liquidus temperature (Seifert et al. 1981), the glass transition temperature for the Little Three magma...Little Three body cooled to below its solidus or its glass transition temperature in no more than 33±84 days |  | | Journal (article/letter/editorial) | | (Na), orthoclase (K), fluorapatite (P, F) and gahnite (Zn). Data were reduced on-line using the PAP routine...(1989): Vaporundersaturated experiments with Macusani glass + H2O at 200 MPa, and the internal differentiation |  | Černý, Petr, Masau, Morgan, Goad, Bruce E., Ferreira, Karen (2005) The Greer Lake leucogranite, Manitoba, and the origin of lepidolite-subtype granitic pegmatites. Lithos, 80 (1) 305-321 doi:10.1016/j.lithos.2003.11.003 | Journal (article/letter/editorial) | | Belt in the southwestern part of the Superior Province of southeastern Manitoba. The considerably evolved...volcano-plutonic Bird River subprovince of the Superior Province of the Canadian Shield. The Bird River Greenstone...microcline-perthite and accessory fluorapatite, gahnite, monazite-(Ce), zircon, and rare opaque minerals...for Bikita-type mineralization in the Superior Province of northwest Ontario. Summary of Field Work and...rare-element mineralization in pegmatites, Superior Province, northwest and northeast Ontario: operation treasure |  | | Journal (article/letter/editorial) | | cassiterite are common accessory minerals; uraninite, gahnite, arsenopyrite, chalcopyrite, pyrite and löllingite...mineralization of the Hagendorf-Pleystein pegmatite province, Germany: with special reference to laser-ablation...discovered Trutzhofmühle aplite, Hagendorf Pegmatite Province, Germany. The Canadian Mineralogist, 46, 11311157...(1989) Vapor-undersaturated experiments with Macusani glass + H 2 O at 200 MPa, and the internal differentiation |  | | Journal (article/letter/editorial) | | belt (SLB), which in this part of the Superior Province, constitutes the boundary zone between the high...rare-element pegmatite mineralization in the Superior Province coupled with probably the greatest number of complex-type...nigerite (Zn,Fe2 ) (Sn,Zn)2(Al,Fe3 )12O22(OH)2, gahnite, ferrowodginite, ferrotapiolite, ferrocolumbite...by London (1986, 1990) whose experiments on Macusani glass (a close analogy of rare-element pegmatite...for Bikita-type mineralization in the Superior Province of Ontario. Ontario Geological Survey, Open File |  | | Book | | industrial uses of the REE is enormous; it ranges from glass industry through metallurgy, catalytic effects in...its type locality at Mt. Qitianling in the Hunan Province of China. lt is an orthorhombic phase, structurally...which are located in a columbite-bearing granite province (von Knorring 1960). The eventual stability of...origin ofthe major syenite centers in the Gardar province ofsouth Greenland: Rb-Sr studies. Geol Soc Am...Mongolia-Transbaikalia The Mongolia-Transbaikalia alkali granite province (Fig. 3) forms a 1500-km-long belt of intrusions |  | | Journal (article/letter/editorial) | | metallic Hf, Mn – Mn2SiO4, Fe – almandine, Al – gahnite, S – SrSO4, F – topaz, Sc – ScVO4, Ti – titanite...microzircons (<1 μm) or remained dispersed in volcanic glass. The observed differences are consistent with the...of the Yichun topaz-lepidolite granite, Jiangxi province, southern China. Can Mineral 40:1047–1068 Irber...granite-pegmatite system: experimental results with Macusani glass at 200 MPa. Contrib Mineral Petrol 99:360–373 |  | | Report (volume) | | cesnee dee eee ao tiscemeaas 174 Borosilicate glass for commercial use and for radioactive waste CONTSMIMCN...salar deposits in the Andes of Argentina, Chile and Peru; and (4) marine evaporites, the largest of which...Russian Far East, and Mg-Fe borates in the Liaoning Province, China. In compiling the Table, whenever possible...for the Early Proterozoic deposit in Liaoning Province, China is that the deposit formed by metamorphism...within pyroclastic rocks of the Roman Potassic Province. Rendiconti Fis Acc Lincei, ser 9, 1:159-163 Della | | | Report (volume) | | as a Major Element Na20-B203-Si02 Borosilicate glass for commercial use and for radioactive waste containment...salar deposits in the Andes of Argentina, Chile and Peru; and (4) marine evaporites, the largest of which...Russian Far East, and Mg-Fe borates in the Liaoning Province, China. In compiling the Table, whenever possible...for the Early Proterozoic deposit in Liaoning Province, China is that the deposit formed by metamorphism...within pyroclastic rocks of the Roman Potassic Province. Rendiconti Fis Acc Lincei, ser 9, 1:159-163 Delia |  | | Book | | Henshaw Dan1 is situated within the Peninsular Range province, a geologic and physiographic unit that occupies...California peninsula. The higher parts of the province are characterized by northwesterly trending, e...between the Peninsular Ranges Province and the Salton Trough Province which is part of the Colorado Desert...that were originally phenocrysts in the volcanic glass." A 1nineralogical definition for bentonite was...Jahns, R.H., 1954b, Geology ofthe Peninsular Range Province, in Geology of Southern California, Califon1ia |  | | Book (edition) | | iodine, and feldspar and silica in the form of glass; so prices will be affected less by this factor...producing, developing countries, such as Chile, Peru, Zambia and ZaIre, increased production irrespective...silica sand deposit to be utilized for high quality glass making the Fe z0 3 content should be less than 0...stocks, as at Butte, Montana, and Cerro de Pasco in Peru. It is found also in hot spring environments and...mineralizing fluids at the Ag-Pb-Zn-Cu Casapalca Mine, Peru were of magmatic origin, whereas for the Pasto Buena |  | | Book (edition) | | 950) Amer. Min. 35, 596. (TL) G uanapc Islands. Peru. Ammonium bollwooditc. (NH,)lUO 2h(S iO3}z.5H 1O...2.956 A . Z= I . (TL) Ankang County. S haanxi Province, China. Named from locality. Structurally related...of silver. (TL) Benguet mine. Antamok, Mountain Province, Philippine Islands. Named for locality. Material...famatinite' from Chile analysed by Frenzel in 1 875. From Peru. 31 32 Ant Anti mon-nickel (of Beudant). variant...lead from (TL) Victoria mine. Tibaya. Are4uipa. Peru. Named for locality. Recxamination showed the material |  | | Book | | 4. By contrast, in isotropic material, e.g., in glass, the vectorial properties are the same along different...with a hardness of 7 or more are able to scratch glass. The Mohs’ hardness scale remains highly popular...with higher refractive indices, e.g., crystals or glass, ν and λ are smaller than in media with low refractive...Raith 1976) In optically isotropic media like in glass, which is amorphous, or in cubic crystals, light...faces. Lechatelierite, SiO2, a rare natural silica glass, is found in nature as matrix between fused grains |  | | Journal (issue) | | Canada Gehlen, K. von (K.v.G.), West Germany Glass, G.B. (G.B.G.), U.S.A. Hadfield, I.M. (J.M.H.),...the Blekinge province is not a southerly continuation o f the Svccokarclian orogenic province o f central...t can be correlated with the SW Swedish gneiss province, formed 1800-1650 m.y. ago. Rb-Sr whole-rock isochron...dyke, o f the North Atlantic Tertiary igneous province, range f r o m 4 3 . 8 t o 6 2 . 6 m . y. Interpreted...attributed t o the late stage o f the Gardar anorogenic province. which until now has been unknown in Labrador |
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