 | Hidaka, Hiroshi, Janeczek, Janusz, Skomurski, Frances N., Ewing, Rodney C., Gauthier-Lafaye, François (2005) Geochemical fixation of rare earth elements into secondary minerals in sandstones beneath a natural fission reactor at Bangombé, Gabon. Geochimica et Cosmochimica Acta, 69 (3) 685-694 doi:10.1016/j.gca.2004.07.019 | Journal (article/letter/editorial) | | sandstones beneath a natural fission reactor at Bangombé, Gabon HIROSHI HIDAKA,1,2,* JANUSZ JANECZEK,3 FRANCES...RODNEY C. EWING,4 and FRANÇOIS GAUTHIER-LAFAYE5 1 Department of Earth and Planetary Systems Science, Hiroshima...University, Higashi-Hiroshima 739-8526, Japan 3 Department of Earth Sciences, University of Silesia, ul... Bedzinska 60, PL-41-200 Sosnowiec, Poland 4 Department of Geological Sciences, University of Michigan...minerals, such as coffinite, françoisite, uraniferous goethite, and uraninite found in a sandstone layer 30 to |  | | Journal (article/letter/editorial) | | micro-minerals bearing fission products in the Oklo and Bangombé natural reactors: A review of a natural analogue...migration of fission products H. Hidaka ∗ , M. Kikuchi Department of Earth and Planetary Systems Science, Hiroshima...Fission Rare earth elements (REE) Natural reactor Gabon Migration a b s t r a c t In the Precambrian, parts...the Oklo, Okélobondo and Bangombé uranium deposits of the Republic of Gabon, central Africa, functioned...fission reactors. Many elements in the Oklo and Bangombé uranium deposits show variations in isotopic composition |  | | Journal (article/letter/editorial) | | Review of In Situ Isotopic Studies of the Oklo and Bangombé Natural Fission Reactors Using Microbeam Analytical...Analytical Techniques Hiroshi Hidaka Department of Earth and Planetary Sciences, Nagoya University, Chikusa-ku...have been found in and around the Oklo and the Bangombé natural reactors. In the past two decades, microbeam...of various elements in and around the Oklo and Bangombé natural reactors vary significantly because of...review the isotopic results related to the Oklo and Bangombé reactors mainly based on my works using a sensitive |  | | Journal (article/letter/editorial) | | University, New York (schlosser@ldeo.columbia.edu) 2 Department of Earth and Env. Engineering, Columbia Univ...(frank@erdw.ethz.ch) 2 University of Oxford, Department of Earth Sciences, Oxford OX1 3PR, U.K. 3 Laboratory...Uppsala, Sweden (goran.possnert@material.uu.se) 2 Department of Earth Sciences, Uppsala University, 752 36...ALDAHAN1, G. POSSNERT2, M. MEILI3 AND V. ALFIMOV2 1 Department of Earth Sciences, Uppsala University, 752 36...Palisades, NY 10964 (jcole@ldeo.columbia.edu) 2 Department of Geosciences, State University of New York |  | | Journal (article/letter/editorial) | | Oklo–Okélobondo and Bangombé natural nuclear reaction zones (Franceville basin, Gabon)—Régis Mathieu, Lena...at the Zenith deposit, Southwestern Grenville Province, Renfrew area, Ontario, Canada—S. Salvi 77 CONTRIBUTIONS...chemistry of trace elements in natural and synthetic goethite—A. Manceau, M.L. Schlegel, M. Musso, V.A. Sole...precious-metal ores in the western Mediterranean province (Cévennes, France - Sardinia, Italy)— P. Béziat...R. Oyarzun B121 Agua Rica prospect, Catamarca province, Argentina: An example of deposit evaluation based |  | | Journal (article/letter/editorial) | | deposits and thereby determine long-term rates 1 Department of Geology, FCFM, Universidad de Chile Plaza...deposits occur in Australia. In the Hamersley province of Western Australia, there are channel iron deposits...famous ~2 billion-year-old Oklo uranium deposit (Gabon), considered a natural fission reactor, have provided...recrystallization and Pb loss in the Oklo and Bangombé natural fission reactors, Gabon. Geochimica et Cosmoschimica Acta...by (U–Th)/ He analysis of supergene goethite, Hamersley Province, Australia. Geology 34:173-176 Hitzman |  | | Journal (article/letter/editorial) | | using a Jeol electron-microprobe JX8600 at the Department of Earth Sciences, University of Bristol, U.K...uranium sorption on Fe oxyhydroxides (ferrihydrite, goethite and hematite) is an important and widely known...have been released during ferrihydrite aging to goethite and hematite (Murakami et al. 1997). Fe oxyhydroxides...anions on the surface of newly forming hematite and goethite. This leads to mineral precipitation, if the cations...oxyhydroxides during its transformation to hematite and goethite led to the precipitation of U-phosphates, saleeite |  | | Journal (article/letter/editorial) | | Interactions of calcium and fulvic acid at the goethite-water interface . . . . . . . . . . . . . . ....Adsorption of oxalate and malonate at the water-goethite interface: molecular surface speciation from IR...Weathering geochronology by (U-Th)/He dating of goethite . . . . . . . . . . . . . . . . . . . . . . ....sandstones beneath a natural fission reactor at Bangombé, Gabon . . 685 STEFAN PROWATKE and STEPHAN KLEMME:...sites on the development of surface charge on goethite nanoparticles: A molecular dynamics investigation |  | | Journal (article/letter/editorial) | | destabilization of uranophane and torbernite. Since goethite precipitates even at low-pH values, these calculations...calculations can explain observed pseudomorphs of goethite after both uranophane and torbernite, which are...uraninite II. The replacement of uranyl minerals by goethite (Fig. 2f) and (more rarely) by uraninite III (Fig...granite fissure; Wittichen (f) pseudomorphs of goethite after autunite group mineral; Menzenschwand (g)...phosphates at the natural fission reactor at Bangombé (Gabon), where uranyl phosphates contain high amounts |  | | Journal (article/letter/editorial) | | Zhangjiakou and Yixian formations, northern Hebei province, with a discussion on the age of the Xing’anling...mineralisation at Tarcoola, central Gawler gold province, South Australia—A.R. Budd and G.L. Fraser 621...for a pre-impact Sudbury dome, southern Superior province, Canada—Stephen A. Prevec, Duncan R. Cowan, and...northwestern Hearne domain, Western Churchill province, Canada—Kate MacLachlan, William J. Davis, and...source of late Archean arc lavas from the Superior Province, Canada—Ali Polat and Carsten Münker 85 CHEMIE |  | Ling, Sixiang, Wu, Xiyong, Ren, Yong, Sun, Chunwei, Liao, Xin, Li, Xiaoning, Zhu, Baolong (2015) Geochemistry of trace and rare earth elements during weathering of black shale profiles in Northeast Chongqing, Southwestern China: Their mobilization, redistribution, and fractionation. Geochemistry, 75 (3) 403-417 doi:10.1016/j.chemer.2015.07.004 | Journal (article/letter/editorial) | | Southwest Jiaotong University, Chengdu, Sichuan Province 611756, PR China Moe Key Laboratory of High-speed...Southwest Jiaotong University, Chengdu, Sichuan Province 610031, PR China c School of Civil Engineering...University of Science and Technology, Mianyang, Sichuan Province 621010, PR China b a r t i c l e i n f o Article...Cambrian black shale in northeastern Chongqing Province, Southwestern China. In this small catchment,...exposure near Chengkou County, northeastern Chongqing Province, China. This site crosses the two first-level tectonic |  | | Journal (article/letter/editorial) | | metal retention through the schwertmannite to goethite transformation as observed in a field setting...amphibolite and marble in the southern Grenville province, Quebec, Canada—Ralph Kretz Calderite-rich garnet...hydrothermal sediments, Gamsberg Zn–Pb deposit, Namaqua province, South Africa—Marcel Stalder and Abraham Rozendaal...recrystallization and Pb loss in the Oklo and Bangombé natural fission reactors, Gabon—Lena Z. Evins, Keld A. Jensen...across the western boundary of the Basin and Range province: Estimate of slip rates from offset shoreline |  | Števko, M., Uher, P., Ondrejka, M., Ozdín, D., Bačík, P. (2014) Quartz-apatite-REE phosphates-uraninite vein mineralization near Čučma (eastern Slovakia): a product of early Alpine hydrothermal activity in the Gemeric Superunit, Western Carpathians. Journal of GEOsciences, 59 (3) 209-222 | Journal (article/letter/editorial) | | UHER, Martin ONDREJKA, Daniel OZDÍN, Peter BAČÍK Department of Mineralogy and Petrology, Faculty of Natural...Supergene minerals are represented by autunite, goethite, goyazite, opal, plumbogummite, and 210 torbernite...supergene phases, like autunite to meta-autunite, goethite, opal, torbernite and unaltered relicts of primary...siogenic REEs from a natural fission reactor at Bangombé, Gabon. Amer Miner 81: 1263–1269 Kohút M, Stein H |  | | Report (issue) | | deposits of Mas Laveyre (France) and Mikouloungou (Gabon). 5 3. Hematite breccia complex deposits: Deposits...(Uzbekistan). • Tectonic-lithologic type — Mikouloungou (Gabon) and Mas Lavayre, Lodève district (France). • ...within the Kendyktas-Tchou-Ili-Betpak-Dala U-Cu province, which is limited by alpine regional faults. Tectonically...affected the Kendyktas structural-metallogenic province: • • • ductile and brittle deformation of the...sediments. The Kendyktas structural-metallogenic province is divided into two sedimentary zones: (a) the |  | | Journal (article/letter/editorial) | | MISHRA1,* AND AIVELIAGARAM V. JEYAGOPAL2 1 2 Department of Geology and Geophysics, Indian Institute of...1991). Halos of secondary phases (calcite, pyrite, goethite and various U-Th-REE-bearing minerals) at the...associated with uranium deposits in the Grenville province, Canada. Recent studies of secondary phases at...samples for this study belong to borehole #SMK–5. Department of Geology and Geophysics, at the Indian Institute...through DST funding (IR/S4/ ESF-08/2005) to the Department of Geology and Geophysics, IIT Kharagpur. Saptarshi |  | Munasinghe, P. Sumudu, Elwood Madden, Megan E., Brooks, Scott C., Elwood Madden, Andrew S. (2015) Dynamic interplay between uranyl phosphate precipitation, sorption, and phase evolution. Applied Geochemistry, 58. 147-160 doi:10.1016/j.apgeochem.2015.04.008 | Journal (article/letter/editorial) | | conditions, batch experiments were carried out with goethite and mica at pH 6 in mixed electrolyte solutions...autunite were achieved only in experiments containing goethite and/or mica. These dynamic nucleation-growth-...surfaces and in solution. Some experiments included goethite and/or mica, while the controls contained no initial...(sheet silicate, detailed formula in methods) and goethite (FeOOH), two ubiquitous minerals with very different...between the goethite, mica, and goethite-mica mixtures. Sorption of phosphate onto both goethite (Cornell |  | | Journal (article/letter/editorial) | | Materials Authority, P.O. 530 El-Maadi, Cairo, Egypt Department of Geology, Faculty of Science, Ain Shams University...associations with secondary Al or Al/Fe phosphates and goethite. Gorman-Lewis 3742 H.H. Abd El-Naby, Y.H. Dawood...sandstones beneath a natural fission reactor at Bangombé, Gabon. Geochim. Cosmochim. Acta 69, 685–694. Hsieh |  | | Report (issue) | | well-known Oklo sandstone-type uranium deposits of Gabon, which formed at ca. 2.1 Ga, are best explained...reactors in the Paleoproterozoic Franceville Basin (Gabon)..................................................38400 St. Martin d’Heres, France Allan J. Hall* Department of Archaeology, University of Glasgow, G12 8QQ...Greenstone Belts (3.8 to 2.7 Ga) N.V. Grassineau* Department of Geology, Royal Holloway, University of London...London, Egham, Surrey TW20 0EX, UK P. Abell† Department of Chemistry, University of Rhode Island, Kingston |  | | Journal (article/letter/editorial) | | Mikutta et al. (2009) GCA 73, 2034!2060. 1 Department of Chemistry, Michigan State University, East...(*correspondence: kalinich@chemisry.msu.edu) 2 Department of Geological Sciences, Michigan State University...University, East Lansing, MI 48824 3 Department of Materials Science and Engineering, Univeristy of Maryland...minerals EIGO KAMIISHI AND SATOSHI UTSUNOMIYA Department of Chemistry, Kyushu University, Fukuoka 8128581...Microbiology, D-28359 Bremen, Germany 2 Present address: Department of Geology, University of Maryland, College Park |  | | Journal (article/letter/editorial) | | FARLEY2, J.D. WALKER1 1 AND T.J. BLACKBURN 1 Department of Geology, University of Kansas, 120 Lindle...source by underplated mafic magma J. MICHAEL PALIN Department of Geology, University of Otago, Dunedin, New...zircon from the Franceville series at Bidoudouma, Gabon L. NASDALA Johannes Gutenberg-Universität, Mainz...HORIE1, H. HIDAKA1 AND F. GAUTHIER-LAFAYE2 1 Department of Earth and Planetary Systems Science, Hiroshima...Franceville basin in Gabon includes unique uranium deposits at Oklo, Okelobondo and Bangombé that are known |  | Švecová, E., Čopjaková, R., Losos, Z., Škoda, R., Nasdala, L., Cícha, J. (2016) Multi-stage evolution of xenotime–(Y) from Písek pegmatites, Czech Republic: an electron probe micro-analysis and Raman spectroscopy study. Mineralogy and Petrology, 110 (6) 747-765 doi:10.1007/s00710-016-0442-6 | Journal (article/letter/editorial) | | Chakhmouradian * Z. Losos losos@sci.muni.cz 1 Department of Geological Sciences, Faculty of Science, Masaryk...scorodite, delwauxite, pitticite, jarosite and goethite can be found as Fig. 1 Geological setting of the...Oklo-Okélobondo and Bangombé natural nuclear reaction zones (Franceville basin, Gabon). Chem Geol 171:147–171 |  | | Journal (article/letter/editorial) | | Stephanie S. Willis a,⁎, Karen H. Johannesson b a b Department of Earth and Environmental Sciences, The University...Texas at Arlington, Arlington, TX 76019-0049, USA Department of Earth and Environmental Sciences, Tulane University...Chapelle and Knobel, 1983). In addition, pelletal goethite, clay minerals, minor hematite, and traces of...(±SD) saturation index (SI) for ferrihydrite, goethite, and hematite in Aquia groundwater is 1.42 ± 0...Geological Survey) and John Nickerson (Maryland Department of Environment) for providing access to a number |  | | Journal (article/letter/editorial) | | oxidation GRII transformed to lepidocrocite (L) and goethite (G) (Fig. 1). Figure 1: Time-resolved WAXS data...reoxidised when transformation to lepidocrocite/goethite occur. A445 Librational dynamics of nanoconfined...SOUZA4, M.X. REINHOLDT5 6 AND R.J. KIRKPATRICK 1 Department of Chemistry, Michigan State University, East...Lansing, MI 48824 (kalinich@chemisry.msu.edu) 2 Department of Materials Science and Engineering, Univeristy...KASANZU*, M.A.H. MAKENYA, H. MABOKO AND S. MANYA Department of Geology, University of Dar es Salaam, P.O |  | | Report (issue) | | CHAPTER 1: INTRODUCTION Kurt Kyser Department of Geological Sciences and Geological Engineering, Queen’s...Bay Basin in Canada and the Franceville Basin in Gabon, but at the boundary between sandstone and grey...the oldest deposits from the Franceville Basin in Gabon. Some of these latter deposits preserve the effects...ADMINISTRATION (2007): International Energy Outlook 2007. Department of Energy, Washington, D.C., www.eia.doe.gov/...EXPLORATION AND DISCOVERY OF DEPOSITS Kurt Kyser Department of Geological Sciences and Geological Engineering |  | Mathurin, Frédéric A., Åström, Mats E., Drake, Henrik, Maskenskaya, Olga M., Kalinowski, Birgitta E. (2014) REE and Y in groundwater in the upper 1.2 km of Proterozoic granitoids (Eastern Sweden) – Assessing the role of composition and origin of groundwaters, geochemistry of fractures, and organic/inorganic aqueous complexation. Geochimica et Cosmochimica Acta, 144. 342-378 doi:10.1016/j.gca.2014.08.004 | Journal (article/letter/editorial) | | present redox front, Quaternary Feoxyhydroxides (goethite) also occur – in low amount – in the upper 110...precipitates such as Mn oxides, Fe-Mn (oxy)hydroxides and goethite (Takahashi et al., 2007; Loges et al., 2012; Surya...experimentally observed on clays and the surface of goethite, Al oxides, and hematite in circumneutral pH solution...The common occurrence of clays and hematite or goethite co-existing with chlorite in the fracture coatings...(2014). Ground water colloid properties from the Bangombé system. Appl. Geochem. 45, 130-143. Dia, A., Gruau |
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