 | Rubin, Jeffrey N., Price, Jonathan G., Henry, Christopher D., Koppenaal, David W. (1987) Cryolite-bearing and rare metal-enriched rhyolite, Sierra Blanca Peaks, Hudspeth County, Texas. American Mineralogist, 72 (11-12) 1122-1130 | Journal (article/letter/editorial) | | Cryolite-bearingand rare metal-enrichedrhyolite, Sierra Blanca Peaks, HudspethCounty,Texasr Jnprnny N. RusrN....qar Bureau of Economic Geology, The University of Texas at Austin, University Station, Box X, Austin, Texas78713...Tertiary TransPecosTexas magmatic province near Sierra Blanca, Texas, was chemically modified by pegmatitic ...result of vapor-phasecrystallization, setsthe Sierra Blanca rhyolites apart from otherwise chemically similar...bastnaesite(?),cassiterite,columbite, priorite(?), Nb-rich rutile, tantalite, thorite, HREE-rich xenotime, yttrocerite |  | | Journal (article/letter/editorial) | | Texas mineral locality INDEX Whereas Texas is well known for its vastness, cattle industry, and oil...I T S T O P O G R A P H Y A N D G E O L O G Y , Texas, the second largest state, has produced relatively...famous localities. A s this article will show, Texas has had—or currently has—nu merous mineral occurrences...produce good specimens; yet when specimens from Texas are sought in collections and dealers' stocks, few...some basic facts that help explain the situation. Texas has very little federal land in its mineralized |  | | Report (issue) | | Resource Areas of the Basin and Range Province of Texas Compiled by Christopher D. Henry and Jonathan G...Economic Geology, The University of Texas at Austin, Austin, Texas, and Michelle Frodey Hutchins, U.S...deposits within the Basin and Range Province in West Texas occur largely as vein and replacement deposits containing...prospects or open cuts. Culberson Brewster County U Fluorite, U, Mo, Hg Hg, fluorite Ag, Pb,...Allamore Talc, north of Van Horn mining area along the county boundary. 31°10'N. lat.; 104°52'W. long. Seven |  | | Journal (article/letter/editorial) | | hypabyssal rhyolite: Round Top laccolith, Trans-Pecos, Texas Brent A. Elliott 1 & L. Christine O’Neill 2 & J...series of Paleogene intrusions emplaced as the Sierra Blanca Complex. These intrusions are situated within...Geology, University of Texas, University Station, Box X, Austin, TX 78713-8924, USA 2 Department of Geological...Geological Sciences, University of Texas, Austin, TX 78712, USA accessory and trace phases, as inclusions...Round Top and other laccolith intrusions in the Sierra Blanca Complex represent a new sub-type of magmatic |  | | Journal (article/letter/editorial) | | Universityof Texas at Austin, Austin, TX 78712, USA bBureau of Economic Geology, Universityof Texas at Austin...78713-7508, USA CNevadaBureau of Mines and Geology, UniversityofNevada-Reno, Reno, NV89557-0088, USA (Received...locations in the Trans-Pecos Magrnatic Province, Texas, U.S.A., demonstrate this hydrothermal Zr mobility...elements (REE), Y, Nb, Mo, Hf, Pb, Th and U. The Sierra Blanca intrusions, a series of mildly peraluminous...Ertsberg District of Irian Jaya, Indonesia. Unlike in Texas, related igneous rocks are metaluminous, and the |  | | Report (issue) | | reactors. Beryllium deposits in Utah, New Mexico, Texas, and Mexico range from small (Apache Warm Springs...pegmatite, Taos County. Current drilling in the Apache Warm Springs deposit in the Sierra Cuchillo by BE...deposit. The Iron Mountain deposit, also in the Sierra Cuchillo south of the Apache Warm Springs deposit...beryllium deposits in the Sierra Cuchillo and San Mateo Mountains, Socorro and Sierra Counties by BE Resources...were discovered in the Victorio Mountains, Luna County in the early 1900s. Gulf Minerals Resources, Inc |  | | Journal (article/letter/editorial) | | multiply biased U–Pb ages of apatite, monazite, rutile and titanite from hydrothermal ore deposits. ...(McNaughton et al. 2005), hydrothermal zircon rims rutile, and apatite–zircon aggregates occur either as...Hydrothermal zircons and zircon overgrowths, Sierra Blanca Peaks, Texas. American Mineralogist 74: 865-869 |  | | Journal (article/letter/editorial) | | 2005 Copyright © 2005 Elsevier Ltd Printed in the USA. All rights reserved 0016-7037/05 $30.00 ⫹ .00 doi:10...East University Way, Ellensburg, Washington 98926, USA (Received December 9, 2003; accepted in revised form...hydrothermal scheelite, molybdenite, thorite and rutile in incipiently altered aplite and monzogranite...crystallization of hydrothermal phases (scheelite, ilmenite, rutile, yttrobetafite, zircon). From annite-sanidine-magnetite...scheelite (Fig. 1a), molybdenite, thorite and niobian rutile (with up to 4 wt.% WO3). Unaltered samples of aplite |  | Xie, Lei, Wang, Rucheng, Chen, Jun, Zhu, Jinchu, Zhang, Wenlan, Lu, Jianjun, Zhang, Rongqing (2013) A tin-mineralized topaz rhyolite dike with coeval topaz granite enclaves at Qiguling in the Qitianling tin district, southern China. Lithos, 170. 252-268 doi:10.1016/j.lithos.2013.03.001 | Journal (article/letter/editorial) | | rims. The rhyolite contains accessory cassiterite, rutile, fluorite, zircon, and columbite. The groundmass...zinnwaldite (Fig. 3c), with accessory topaz, cassiterite, rutile, fluorite, and zircon, and with common granophyric...evidence of abundant Sn–Ti–Nb-oxide (cassiterite and rutile) and fluorite microcrystals that formed as secondary...associated with other accessory minerals such as rutile, cassiterite, and columbite. EMP analysis indicates...with secondary oxide minerals (cassiterite and rutile) and X-ray scanning maps showing variations in |  | | Journal (article/letter/editorial) | | monazite-(Ce). Titanium-poor magnetite, pyrophanite and rutile are the major Fe-Ti oxides. These occurrences indicate...microprobe analysis (EMPA), the counting time on peaks was 10 s for major elements and 20 60 s for minor...voltage 15 kV, probe current 20 nA, counting time on peaks 10 s except for uranium (50 s). Counting times on...Most ilmenites in this subgroup are pyrophanite. Rutile The phase commonly appears as part of the complex...REE-bearing silicates. Tipoor magnetite, pyrophanite and rutile are the main Ti-Fe oxides. FIG. 7. Backscattered |  | Lawrie, K.C., Mernagh, Terrence P., Ryan, Christopher G., Achterbergh, Esme van, Black, Lance P. (2007) Chemical fingerprinting of hydrothermal zircons: an example from the Gidginbung high sulphidation Au-Ag-(Cu) deposit, New South Wales, Australia. Proceedings of the Geologists' Association, 118 (1) 37-46 doi:10.1016/s0016-7878(07)80045-9 | Journal (article/letter/editorial) | | Coarsegrained euhedral zircon s also occur as vug-fill with rutile+ bar ite+p yroph yllite+quartz+sulphides and in...(Cu)AsSoj)-pyrite veins (Fig . 4). • Hydr othermal rutile is recognized as an integral component of several...Zircon also occurs as euhedral inclusions within rutile in qu artz-alunitebarite-quartz veins. This suggests...microprobe. They co nfirm the presence of bar ite, rutile, anatase, pyrite and arse no pyrite, an d a lso... Th e barite is enric hed in Pb. Th e pyri te+ rutile inclus ions are enriched in Mn , Sr, Ag, Pb, Yb |  | | Journal (article/letter/editorial) | | 37235-1805, USA b Division of Geological and Planetary Sciences, California Institute of Technology, USA c Department...Lunar and Planetary Institute, USRA, Houston TX, USA Received 22 November 2011; accepted in revised form...granitic gneiss (Kebede et al., 2007), as rims on rutile associated with a lamprophyre dike (Mcnaughton...Hermann (2003) attributed the presence of zircon and rutile in eclogite veins to mobilization of HFSE by aqueous...zircon starting material showed sharp diffraction peaks indicating that it is crystalline. Observations |  | | Journal (article/letter/editorial) | | In samples from Tinos, inclusions of omphacite, rutile and allanite in zircon clearly indicate zircon...high-pressure metamorphism. In samples from Syros, rutile was recognized as inclusion in zircon. Zircon formation...Hydrothermal zircons and zircon overgrowths, Sierra Blanca Peaks, Texas. American Mineralogist 74, 865–9. SCHERMER |  | | Journal (article/letter/editorial) | | Engineering, Colorado School of Mines, Golden, CO, 80401, USA. 2008 Blackwell Publishing Ltd Rasmussen, 2005)...assemblages other minerals, such as garnet, ilmenite or rutile may apparently contain significant concentrations...Hydrothermal zircons and zircon overgrowths, Sierra Blanca Peaks, Texas. American Mineralogist, 72, 865–869....Temperature dependence of Zr in rutile: empirical calibration of a rutile thermometer. Contributions to |  | | Journal (article/letter/editorial) | | synchysite-(Y), synchysite-(Ce), Thpoor monazite-(Ce) and rutile are present in the accessory mineral assemblage...zircon occurred in rhyolite from the Sierra Blanca Peaks, Texas, USA (Rubin et al. 1989). The Zr/Hf ratio...Hydrothermal zircon and zircon overgrowths, Sierra Blanca Peaks, Texas. Amer Mineral 74:865– 869 Seifert T, |  | | Journal (article/letter/editorial) | | activity causing new mineral growth (titanite, rutile), remobilisation of Au, and rejuvenation of isotopic...paragenetic, chemical or stable isotope evidence, that rutile, scheelite, titanite and muscovite were not reformed...Hydrothermal zircons and zircon overgrowths, Sierra Blanca Peaks, Texas, Am. Mineral. 74, 865-869, 1988. 19 P...alteration and Au mineralization from titanite, rutile and monazite U-Pb geochronology, Chem. Geol. 79 |  | Seifert, Wolfgang, Förster, Hans-Jürgen, Rhede, Dieter, Tietz, Olaf, Ulrych, Jaromír (2012) Mineral inclusions in placer zircon from the Ohře (Eger) Graben: new data on “strontiopyrochlore”. Mineralogy and Petrology, 106 (1) 39-53 doi:10.1007/s00710-012-0221-y | Journal (article/letter/editorial) | | frequently accompanied by Ti-rich magnetite, ilmenite, rutile, spinel, corundum, titanite, garnet, and peridotite...ilmenite, corundum (sapphire and ruby), maghemite, rutile, pseudorutile, moissanite, diamond, and minerals...all occurrences, with exception of the JL sample. Rutile, occasionally containing up to 9 wt. % Nb2O5, was...Ilmenite Magnetite Nb–Y–REE–Fe oxide Pyrochlore Rutile Thorianite Uraninite Alkali feldspar Biotite ...base on the assumption of rutile saturation (aTiO2 01), considering that rutile inclusions are commonly |  | Wang, R. C., Zhao, G. T., Lu, J. J., Chen, X. M., Xu, S. J., Wang, D. Z. (2000) Chemistry of Hf-rich zircons from the Laoshan I- and A-type granites, Eastern China. Mineralogical Magazine, 64 (5) 867-877 doi:10.1180/002646100549850 | Journal (article/letter/editorial) | | with other accessory minerals such as magnetite, rutile and titanite. We have analysed 21 crystals of zircon:...Hydrothermal zircons and zircon overgrowths, Sierra Blanca Peaks, Texas. Amer. Mineral., 74, 865 9. Speer, J |  | | Journal (article/letter/editorial) | | ophiolitic association located along Sierra Nevada, Sierra de Baza and Sierra de Filabres. The black star indicates...out near the village of Lugros to the north of Sierra Nevada (Fig. 1). These eclogites form three tectonic...mineral contains abundant tiny crystals of exsolved rutile and shows a gradual transition to green sodic-calcic...Clinopyroxene was transformed into omphacite + rutile, and calcic plagioclase was replaced, during the...omphacite + kyanite aggregates. Ilmenite is replaced by rutile aggregates. Centimetric veins filled with kyanite |  | Zozulya, D. R., Lyalina, L. M., Eby, N., Savchenko, Ye. E. (2012) Ore geochemistry, zircon mineralogy, and genesis of the Sakharjok Y-Zr deposit, Kola Peninsula, Russia. Geology of Ore Deposits, 54 (2) 81-98 doi:10.1134/s1075701512020079 | Journal (article/letter/editorial) | | University of Massachusetts Lowell, Lowell, 01854 USA Received February 28, 2011 Abstract—The Sakharjok...Georgievka, Central, and other placer deposits (zircon–rutile– ilmenite sands) have the best perspective. The...granites; 15%, to car bonatites; and 35%, to zircon–rutile–ilmenite placers (Bykhovsky and Zubkov, 1996; Bykhovsky...Hydrothermal Zircons and Zircon Overgrowths, Sierra Blanca Peaks, Texas, Am. Mineral., 1989, vol. 74, pp. 865–869...the Rockfish Valley Fault Zone, Central Virginia, USA, J. Geol., 1992, vol. 100, pp. 593–603. Yarmolyuk |  | Toscano, M., Pascual, E., Nesbitt, R.W., Almodóvar, G.R., Sáez, R., Donaire, T. (2014) Geochemical discrimination of hydrothermal and igneous zircon in the Iberian Pyrite Belt, Spain. Ore Geology Reviews, 56. 301-311 doi:10.1016/j.oregeorev.2013.06.007 | Journal (article/letter/editorial) | | growth, such as inclusions of sericite, pyrite, rutile, chlorite and/or galena (Nesbitt et al., 1999)...= apatite; Chl = chlorite; Mo = monazite; Ru = rutile. minute zircon inclusions concentrated along the...habit, as well as sulphide (pyrite and galena), rutile, sericite and/or apatite inclusions (Fig. 3C to...Hydrothermal zircons and zircon overgrowths, Sierra Blanca Peaks Texas. Am. Mineral. 74, 865–869. Ruiz, C., Arribas...syngenetic? Evidence from U–Pb dating of hydrothermal rutile at the Kidd volcanic center, Abitibi subprovince |  | Salvi, S., Fontan, F., Monchoux, P., Williams-Jones, A. E., Moine, B. (2000) Hydrothermal Mobilization of High Field Strength Elements inAlkaline Igneous Systems: Evidence from the Tamazeght Complex (Morocco) Economic Geology, 95 (3) 559-576 doi:10.2113/gsecongeo.95.3.559 | Journal (article/letter/editorial) | | minerals include zircon, a Ti (±Nb) silicate or oxide (rutile?), an Mn hydroxide(?), and less commonly, sphalerite...galena. The occurrence of zircon, parisite, and rutile are evidence for mobilization of Zr and other HFSE...common daughter minerals produced EDS spectra with peaks for Ca plus the LREE La and Ce and is tentatively...a crystal yielding peaks for Ti, Fe, ±Nb ±Mn (rutile?). Zircon (tentatively, peaks for Zr and Si) was...a given solid. Sphalerite (Zn and S peaks) and galena (Pb peaks—the SKα1 peak is masked by PbMα1) were |  | Fu, Bin, Mernagh, Terrence P., Kita, Noriko T., Kemp, Anthony I.S., Valley, John W. (2009) Distinguishing magmatic zircon from hydrothermal zircon: A case study from the Gidginbung high-sulphidation Au–Ag–(Cu) deposit, SE Australia. Chemical Geology, 259 (3) 131-142 doi:10.1016/j.chemgeo.2008.10.035 | Journal (article/letter/editorial) | | Geophysics, University of Wisconsin, Madison, WI 53706, USA Onshore Energy and Minerals Division, Geoscience...or resorption, it is possible that, like quartz, rutile, and anatase, a few pyrite inclusions occurring...that the zircons at Gidginbung commonly occur with rutile, barite, pyrophyllite, quartz, pyrite and enargite...contain inclusions of pyrite, strengite, quartz, rutile, anatase, titanite, barite and (chlor-)apatite...zircons crystallized in the presence of quartz and rutile at P ≈ 10 kbar. The pressure correction for the |  | Zhu, Mingtian, Zhang, Lianchang, Dai, Yanpei, Wang, Changle, Peng, Zidong (2017) Hydrothermal modification of zircon geochemistry and Lu–Hf isotopes from the Hongtoushan Cu–Zn deposit, China. Ore Geology Reviews, 86. 707-718 doi:10.1016/j.oregeorev.2017.03.028 | Journal (article/letter/editorial) | | revised calibrations for the Ti-in-zircon and Zr-in-rutile thermometers. Contributions to Mineralogy and Petrology...Hydrothermal zircons and zircon overgrowths, Sierra Blanca Peaks, Texas. American Mineralogist 74, 865-869. Rubin...2006. Crystallization thermometers for zircon and rutile. Contributions to Mineralogy and Petrology 151 |  | | Journal (article/letter/editorial) | | vein, Sunshine Mine, Coeur d'Alene district, Idaho, USA Robert E. Zartman a,⁎, Joseph V. Smith b,1 a b Earth...02139, USA Department of Geophysical Sciences, University of Chicago, Chicago, IL 60637, USA a r t i...1 0.6 1.0 94.7 sericite (0.1%), and traces of rutile, uraninite, zircon, tetrahedrite, galena, and arsenopyrite...of the Coeur d'Alene mining district, Shoshone County, Idaho. U.S. Geological Survey Professional Paper...of the Coeur d'Alene mining district, Shoshone County, Idaho. U.S. Geological Survey Professional Paper |
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