 | Reyes-Cortés, Manuel, Fuentes-Cobas, Luis, Torres-Moye, Enrique, Esparza-Ponce, Hilda, Montero-Cabrera, María Elena (2010) Uranium minerals from the San Marcos District, Chihuahua, Mexico. Mineralogy and Petrology, 99 (1) 121-132 doi:10.1007/s00710-009-0104-z | Journal (article/letter/editorial) | | Uranium minerals from the San Marcos District, Chihuahua, Mexico Manuel Reyes-Cortés & Luis Fuentes-Cobas...San Marcos I) of Sierra San Marcos, located 30 km northwest of Chihuahua City, Mexico, was studied by...hydrothermal activity during post-orogenic evolution of Sierra San Marcos. The secondary mineralization occurred...Materiales Avanzados, Miguel de Cervantes 120, 31109 Chihuahua, Chih, México e-mail: elena.montero@cimav.edu...Ingeniería, Universidad Autónoma de Chihuahua, Nuevo campus, Chihuahua, Chih, México uraninite with geothermal |  | Dobson, Patrick F., Fayek, Mostafa, Goodell, Philip C., Ghezzehei, Teamrat A., Melchor, Felipe, Murrell, Michael T., Oliver, Ronald, Reyes-Cortés, Ignacio A., De La Garza, Rodrigo, Simmons, Ardyth (2008) Stratigraphy of the PB-1 Well, Nopal I Uranium Deposit, Sierra Peña Blanca, Chihuahua, Mexico. International Geology Review, 50 (11) 959-974 doi:10.2747/0020-6814.50.11.959 | Journal (article/letter/editorial) | | Stratigraphy of the PB-1 Well, Nopal I Uranium Deposit, Sierra Peña Blanca, Chihuahua, Mexico a b c Patrick F...PetroLab, Chihuahua, Mexico e Los Alamos National Laboratory f Universidad Autónoma de Chihuahua, Chihuahua...Chihuahua, Mexico Published online: 06 Aug 2010. To cite this article: Patrick F. Dobson , Mostafa Fayek...Stratigraphy of the PB-1 Well, Nopal I Uranium Deposit, Sierra Peña Blanca, Chihuahua, Mexico, International Geology...Stratigraphy of the PB-1 Well, Nopal I Uranium Deposit, Sierra Peña Blanca, Chihuahua, Mexico PATRICK F. DOBSON,1 |  | | Journal (article/letter/editorial) | | KEYWORDS: uranophane, ~-uranophane, synthesis, Mexico. Introduction URANOPHANE* Ca(UO2)2(SiO3OH)2.5H20...tufts from the Sierra Pefia Blanca, Chihuahua, Mexico, and particularly in the Nopal I deposit. This...of the Nopal I uranium deposit (from Reyes et al., 1980). Geological setting In the Chihuahua State of...of Mexico, m o r e than a hundred radiometric anomalies have been detected in Tertiary volcanic rocks...rocks of the Sierra Pefia Blanca (Fig. l a ) , located north-east of Chihuahua City (Uramex, 1980). This |  | | Journal (article/letter/editorial) | | with the volcanic rocks of the Sierra Pena Blanca (Chihuahua, Mexico) BRtcIrrn ANru, Centre de Recherchessur...uraniferousmineralizationsof the Nopal I deposit (Sierra Pena Blanca, Chihuahua, Mexico) are related to a breccia...breccia pipe in a tertiary vitroclastic tuff (Nopal Formation). Detailed mineralogicaland fluid inclusion...to 350'C. The well developedkaolinization of the Nopal tuff is associatedwith a secondtetravalenturanium...minerals mined in the Pena Blanca district, north of Chihuahua city, Mexico, are commonly oxidized minerals |  | | Journal (article/letter/editorial) | | Uranium-rich opal from the Nopal I uranium deposit, Peña Blanca, Mexico: Evidence for the uptake and...September 2009 Abstract The Nopal I uranium deposit of the Sierra Peña Blanca, Mexico, has been the focus of...the vadose zone of the U ore deposit Nopal I at Peña Blanca, Mexico, (Cesbron et al., 1993). These thin...formed in the subsurface at Yucca Mountain and Nopal I commonly occur as fillings in fractures, pores...from the vadose zone of the uranium ore deposit at Nopal I. We will use the terms opaline coating for coatings |  | | Journal (article/letter/editorial) | | interactions during the weathering of U deposits or the mine and mill tailings that result from resource utilization...pentagonal bipyramids and silicate tetrahedra. Soddyite, with a U:Si ratio of 2:1, involves a framework...with a U:Si ratio of 1:1. (d) The structure of soddyite with a U:Si ration of 2:1. (e) The structure of...of uranyl polyhedra in the -uranophane sheet. Soddyite, with a U:Si ratio of 2:1, has a structure based...polyhedra is also related to the U:Si ratio. In soddyite, with a ratio of 2:1, each silicate tetrahedron |  | | Journal (article/letter/editorial) | | in silicic volcanic rocks at the Nopal I U deposit in Chihuahua, Mexico—a natural analog to the potential...and Burns, 2008). Dating of uranophane from the Nopal I U deposit has yielded a radiometric determined...disequilibrium measured on a single uranophane from the Nopal I U deposit yielded an age of 320 ± 30 ka (Pickett...pattern for natural uranophane collected from a mine site, Van Horn, TX, USA (Blanchard, 1987). The synthetic...reference pattern for natural uranophane from a mine stie, Van Horn, TX, USA (Blanchard, 1987). ICP |  | | Journal (article/letter/editorial) | | sklodowskite, cuprosklodowskite, oursinite, and soddyite, including refinements of the H atoms, which remained...Weeksite group Weeksite Haiweeite Coutinhoite Soddyite Poorly defined Calcioursilite Magnioursilite Uranosilite...sklodowskite, cuprosklodowskite, oursinite, and soddyite. Crystals used in the study were retrieved from...History in Luxembourg (sklodowskite, oursinite, and soddyite). Intensity data were collected using two different...(I)) Sklodowskite Cuprosklodowskite Oursinite Soddyite 17.4078(6), 7.0428(3), 6.6080(2) 6.6549(5), 7 |  | | Journal (article/letter/editorial) | | Neptunium substitution in synthetic uranophane and soddyite Amanda L. Klingensmith1 and Peter C. Burns1,2...impact repository performance. Powders of synthetic soddyite, (UO2)2(SiO4)(H2O)2, and uranophane, Ca[(UO2)(SiO3...temperatures and pH of the initial solutions. Powders of soddyite exhibit increasing Np concentration with the synthesis...structure on incorporation are needed. Keywords: Soddyite, uranophane, neptunium, nuclear waste, Yucca Mountain... haiweeite, Ca[(UO2)2 Si5O12(OH)2](H2O)3, and soddyite, (UO2)2(SiO4)(H2O)2, have been found as alteration |  | | Journal (article/letter/editorial) | | sulfates. Uranyl silicates contain sheets, except soddyite and weeksite, which involve frameworks of polyhedra...of uraninite from the Nopal I deposit, Peña Blanca District, Chihuahua, Mexico, compared to °radation |  | Pan, Yuanming, Li, Dien, Feng, Renfei, Wiens, Eli, Chen, Ning, Chernikov, Roman, Götze, Jens, Lin, Jinru (2021) Uranyl binding mechanism in microcrystalline silicas: A potential missing link for uranium mineralization by direct uranyl co-precipitation and environmental implications. Geochimica et Cosmochimica Acta, 292. 518-531 doi:10.1016/j.gca.2020.10.017 | Journal (article/letter/editorial) | | deposits. For example, the giant Olympic Dam CuU-Au-Ag mine (Australia) contains a total resource of 7123 Mt...(Kelly et al., 2002; Ravel and Newville, 2005). Soddyite ((UO2)2SiO42H2O) (Demartin et al., 1992) was...patterns of uranium-rich spots with the uraninite, soddyite, vorlanite, carnotite, and trigonal CaUO4 structures...± 0.6 2 2 3 1 2 2 Opal-2w Opal-2b Agate-1 Soddyite a b c d c r2 (Å2)d E0 (eV) R-factor 0.004...fittings for the opal and agate samples with the soddyite model. The fitted structure parameters for the |  | Forbes, T. Z., Horan, P., Devine, T., McInnis, D., Burns, P. C. (2011) Alteration of dehydrated schoepite and soddyite to studtite, [(UO2)(O2)(H2O)2](H2O)2. American Mineralogist, 96 (1) 202-206 doi:10.2138/am.2011.3517 | Journal (article/letter/editorial) | | 2011 Alteration of dehydrated schoepite and soddyite to studtite, [(UO2)(O2)(H2O)2](H2O)2 Tori Z. Forbes...alteration of dehydrated schoepite, UO3(H2O), and soddyite, [(UO2)2(SiO4)] (H2O)2, in the presence of aqueous...X-ray diffraction. Both dehydrated schoepite and soddyite readily convert to studtite in the presence of...repository setting should not be overlooked. Keywords: Soddyite, studtite, schoepite, nuclear waste, geologic...dehydrated schoepite, uranophane, boltwoodite, soddyite, and compreignacite. Studies of unirradiated UO2 |  | | Journal (article/letter/editorial) | | S0016-7037(02)00927-4 Equilibrium and kinetic aspects of soddyite dissolution and secondary phase precipitation...Abstract—The dissolution and transformation of soddyite ([UO2]2SiO4 䡠 2H2O) have been examined in aqueous...aqueous suspension at pH 6 and 0.01 M NaNO3. Soddyite is an important component of the paragenetic sequence...deposits and corrosion of spent nuclear fuel. A soddyite of high purity and crystallinity was synthesized...solution at their stoichiometric 2:1 ratio in soddyite. A decrease in the dissolved U concentration was |  | Colmenero, Francisco, Timón, Vicente, Bonales, Laura J., Cobos, Joaquín (2018) Structural, mechanical and Raman spectroscopic characterization of the layered uranyl silicate mineral, uranophane-α, by density functional theory methods. Clay Minerals, 53 (3) 377-392 doi:10.1180/clm.2018.27 | Journal (article/letter/editorial) | | , 2017a), studtite (Colmenero et al., 2017b), soddyite (Colmenero et al., 2017c) and γ-UO3 polymorph...Smith, 1981; Burns, 2005; Grenthe et al., 2006). Soddyite has a 2:1 uranium to silicon ratio and framework...done in our previous studies of rutherfordine and soddyite minerals (Colmenero et al., 2017a, 2017c). The... The hardness of uranophane is comparable to soddyite uranyl silicate mineral (6.3 according to Colmenero...are 2.17 and 1.44, respectively. Uranophane and soddyite uranyl silicate minerals are characterized by |  | | Book | | ............................................21 Mexico .................................................uranium if higher prices justify reprocessing the mine tailings to recover some of the uranium that was...wastewater during environmental reclamation at a mine that has ceased production. The following statistical...production was about 270 tU. In Argentina the Sierra Pintada mine had been in standby status since 1999 and...recovered from mine rehabilitation activities; small amounts were likewise recovered during mine remediation |  | Casas, Ignasi, Bruno, Jordi, Cera, Esther, Finch, Robert J., Ewing, Rodney C. (1997) Characterization and dissolution behavior of a becquerelite from Shinkolobwe, Zaire. Geochimica et Cosmochimica Acta, 61 (18) 3879-3884 doi:10.1016/s0016-7037(97)00195-6 | Journal (article/letter/editorial) | | Planetary Science, University New Mexico, Albuquerque, New Mexico 87131, USA. IGNASI CASAS. I JORDI BRUNO...minor Pb and Si were detected in some crystals. Soddyite was identified by XRD in a very small sample,...explain the incongruency between U and Ca. As minor soddyite was identified in the leached sample, we suspect...uranophane (identified in some unleached crystals) to soddyite at low pH, as reported by Casas et al. (1994)...(13) Given the minor amount of uranophane and soddyite detected in the unleached and leached crystals |  | | Journal (article/letter/editorial) | | cupro-sklodowskite sklodowskite kasolite β-uranophane soddyite weeksite chernikovite phosphuranylite saleeite...we have calculated the ∆G0f,298.15 values for soddyite, uranophane, Na-boltwoodite, and Na-weeksite to...sharpite fontanite liebigite haiweeite ursilite soddyite uranophane *M/C indicates measured or Formula...occurs as extremely fined-grained efflorescences on mine walls, surface outcrops, and elsewhere where evaporation...the activity-activity diagram. Uranophane and soddyite are the most common minerals in oxidized uranium |  | Wang, Zheming, Zachara, John M., Gassman, Paul L., Liu, Chongxuan, Qafoku, Odeta, Yantasee, Wassana, Catalano, Jeff G. (2005) Fluorescence spectroscopy of U(VI)-silicates and U(VI)-contaminated Hanford sediment. Geochimica et Cosmochimica Acta, 69 (6) 1391-1403 doi:10.1016/j.gca.2004.08.028 | Journal (article/letter/editorial) | | uranium-silicate minerals including boltwoodite, uranophane, soddyite, kasolite, sklodowskite, cuprosklodowskite, haiweeite...uranophane-type solid (uranophane, boltwoodite) or soddyite, as was concluded from microprobe, EXAFS, and...Boltwoodite Cuprosklodowskite Kasolite Sklodowskite Soddyite K(UO2)(SiO3OH) (H2O)15 Cu(UO2)2(SiO3OH)2 (H2O)6...to database (card 29-875). A 50/50 mixture of soddyite (card 35-0491) and curite [Pb1.5⫹x(UO2)6O4⫹2x(OH)3⫺2x(H2O)]...turned out to be impure: the “soddyite” was a 50/50 mixture of soddyite and curite and the haiweeite was |  | | Journal (article/letter/editorial) | | Červená hydrothermal uranium vein (Jáchymov ore district, Czech Republic) were studied. These supergene...hypogene sulfide minerals, connected to the acid-mine drainage (AMD) systems. The complex geochemistry...Keywords: uraninite, supergene weathering, acid-mine drainage, mineral data, X-ray diffraction, bond-valence...Červená vein in the Jáchymov (St. Joachimsthal) ore district represents a typical alteration association of...Occurrence The Jáchymov (St. Joachimsthal) ore district, located in the vicinity of the namesake town |  | | Report (chapter) | | "4(H20) Ba[(UO2)303(OH)2]. 3H20 Uranyl silicates Soddyite Uranosilite (UO2)28iO4"2H20 (Mg,Ca)4(UO2)4(Si2Os)5...sites, such as, Pefia Blanca, Mexico. Indeed, phase characterization at Pefia Blanca was mainly by visual...proposed Yucca Mountain repository at Pefia Blanca, Mexico (Pearcy et al. 1994); the Cigar Lake deposit...will become stable during oxidative alteration. Soddyite, (UO2)2 SiO4-2H20, has been predicted to form...form at the expense of coffinite, but soddyite has not been identified at Bangomb& Jensen et al. 42002) have |  | Brugger, J., Meisser, N., Etschmann, B., Ansermet, S., Pring, A. (2011) Paulscherrerite from the Number 2 Workings, Mount Painter Inlier, Northern Flinders Ranges, South Australia: "Dehydrated schoepite" is a mineral after all. American Mineralogist, 96 (2) 229-240 doi:10.2138/am.2011.3601 | Journal (article/letter/editorial) | | deposits, such as Shinkolobwe, Zaire; Nopal I deposit, Mexico; and the granitic pegmatites of New Hampshire...metaschoepite, and paraschoepite from Shinkolobwe, Katanga district, Democratic Republic of Congo. Christ and Clark...metaschoepite, weeksite, beta-uranophane, metatorbernite, soddyite, kasolite, billietite, Ce-rich françoisite (type...water upon heating of synthetic deposit, Katanga district, schoepite UO3⋅2H2O between 60 and 180 °C Democratic...not reported. n/a Natural from the Nopal I deposit, Chihuahua, Mexico. Mixture dominated by metaschoepite; |  | Shvareva, Tatiana Y., Mazeina, Lena, Gorman-Lewis, Drew, Burns, Peter C., Szymanowski, Jennifer E.S., Fein, Jeremy B., Navrotsky, Alexandra (2011) Thermodynamic characterization of boltwoodite and uranophane: Enthalpy of formation and aqueous solubility. Geochimica et Cosmochimica Acta, 75 (18) 5269-5282 doi:10.1016/j.gca.2011.06.041 | Journal (article/letter/editorial) | | uranyl silicate soddyite (Gorman-Lewis et al., 2007). Uranyl silicates, including soddyite, uranophane ...previously predicted values (Clark et al., 1998), for soddyite, boltwoodite, and uranophane. All values are normalized...silicates, 117.8 ± 4.3 kJ/mol, is observed for soddyite (UO2)2(SiO4)2H2O (or 58.9 ± 2.2 kJ/mol per (UO2)(SiO4)0...(UO2)(SiO4)0.5 H2O unit) (Gorman-Lewis et al., 2007). Soddyite, the compositionally simplest uranyl silicate...consist of chains with the same topology as in soddyite. These chains are arranged in two-dimensional |  | | Journal (article/letter/editorial) | | atomic % of As in uraninite from the widely cited Nopal I mine (Janeczek et al., 1996; Finch and Murakami,...different ages for the rock units at the Lookout Mine: 94, 99, and 203 Ma using the U–Pb method, and suggested...(Fig. 1). Samples were collected from the Lookout Mine No. 22, where a high-grade ore formed by complete...Fig. 1. Schematic geologic map of Marshall Pass district, Colorado, USA, with the localities of the uranium...(H2O)9], bequerelite [Ca(UO2)6O4(OH)6(H2O)8], soddyite [(UO2)2SiO4(H2O)2], boltwoodite [K(UO2)(SiO3OH) |  | | Book | | ................. ...... ................. 29 Mexico .................................................Czech Republic) and elsewhere in the Erzgebirge district. Those n1ines had been \VOrked for silver and...vvastewater during environmental reclamation at a mine that has ceased production. The following statistical...Saskatchewan, is the world's largest high-grade uraniu1n mine. The ore from that ,nine is crushed and treated...efforts were underway to resta1t production at the Sierra Pintada 1nine of the San Rafael con1plex, but environmental |  | Cabral Pinto, Marina, Silva, Maria, Neiva, Ana, Guimarães, Fernanda, Silva, Paulo (2018) Release, Migration, Sorption, and (Re)Precipitation of U during Peraluminous Granite Alteration under Oxidizing Conditions in Central Portugal. Geosciences, 8 (3) 95 doi:10.3390/geosciences8030095 | Journal (article/letter/editorial) | | 15,25,27]. The abandoned Vale de Abrutiga uranium mine is located in central Portugal close to Variscan...peraluminous biotite granite, and is a uranium phosphate mine that was exploited until 1989. The granite has a...4 of 23 The abandoned Vale de Abrutiga uranium mine is located in the phyllites, close to the granite...disseminated from the surface to about 50 m, and the mine was an open pit. 3. Analytical Methods Sampling...), silicates (e.g.,: coffinite, sklodowskite, soddyite, swamboite), phosphates (e.g., yingjiangite, autunite |
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