 | | Journal (article/letter/editorial) | | of fluorite-barite mineralization in southern Germany with special reference to the Late Paleozoic unconformity...Survey of Lower Saxony, Continental Deep Drilling Programme of the Federal Republic of Germany, Project...in the southern part of the Federal Republic of Germany. Fluorite and barite are currently mined from...localities in southern Germany (Pforzheim, Oberwolfach, Nabburg-Woelsendorf mining district, Donaustauf, St...(1966); Stoppel and Gundlach (1978); Nabburg mining district, Ziehr (1980); Spessart Mts., Hess (1973); Black |  | | Journal (article/letter/editorial) | | Triassic "Burgsandstein", Southern Germany H. G. Dill Geological Survey of Lower Saxony--Continental Deep Drilling...Drilling Programme of the Federal Republic of Germany With 6 Figures Received May 28, 1987; accepted January...their capacity to absorb uranium. In southern Germany, no special study has until now been dedicated...Triassic which is traditionally divided into the Lower Triassic continental "Buntsandstein", the Middle..."Burgsandstein". Fig. 1. The "Keuper" fan in southern Germany. Geological basis Emmert (1964). A) Silcretes, |  | | Journal (article/letter/editorial) | | geochronological data presently available, concerning pitchblende vein-type deposits in France, seem altogether...elements essentially found in mineral deposits of pitchblende with a quartz, clay or calcite matrix, c) Such...have been laid (geochronology U-Pb); d) Veined pitchblende deposits show much analogy in their mineral associations...perhaps a brief continental interlude during the lower Cretaceous. It then follows a new phase with lagoonal...Factors The determining factors controlling pitchblende concentration are the secondary frac- Table |  | | Report (issue) | | Desmond Pretorius Vein-type Uranium Deposits - Helmut Fuchs Proterozoic Unconformity and Stratabound Uranium...and the uranium community worlwide. Dr. Helmut Fuchs, who guided the work of this project on vein-type...mbH in Frankfurt am Main, Federal Republic of Germany, and his colleagues who assisted, deserve special...helping to improve the English of some papeis. Helmut Fuchs Project Manager Eaitor EDITORIAL NOTE In preparing....................................... 7 H. D. Fuchs The problem of uranium mineralization in Precambrian |  | | Journal (article/letter/editorial) | | U-Mo-Zn and Ag-Au-Zn deposits in volcanic rocks Y. Fuchs, R. Maury Laboratoirede Min~ralogieExp~rimentaleet... Australia), the Saar-Nahe basin (Germany), the Shengyuan district (China), and at many deposits in Russia...of the Humboldt Range (Nevada, USA), the Basin district (Montana, USA) and Equity Mine (British Columbia...(Cadel et al. 1987; Fuchs 1987, 1989; Paulet et al. 1991; Paulet 1992; Y. Fuchs, unpubl, data) will be...in the Humboldt Range (Nevada, USA), the Basin district (Montana, USA), in subaerial volcanic and hypabyssal |  | | Journal (article/letter/editorial) | | Uranium-Oxygen System: UOz.r to IIrOe," Hoekstra, Siegel, Fuchs and Katz (1955) describeresearchleading to conclusionswhich... Altered to secondarymins. arongcracks. HALE'S QUARRY, Portland, Conn. USNM 83566.G.:9.139. Anal 27....conchoidalfracrure. Bluish iridescence. STRTCKLAND Quarry, Portland, conn. H 106052, Lnal 24. Small crystals...calcareousredish quartzite. With uranophane' WOLSBNDORF, Bavaria. Anal 37. Dull, with purple fluorite. wooD MINE...the 'q' value will be lower than the original oxidation state-perhaps even lower than 2. Nonradiogenic |  | | Book | | Justus-Liebig-Universität Senckenbergstrasse 3 35390 Giessen Germany K. WEBER Institut für Geologie und Dynamik der...Göttingen Goldschmidtstrasse 3 37077 Göttingen Germany Cataloging-in-Publication D a t a applied for...international conference in G6ttingen/Giessen, Germany. Discussions were focused on the Tectonothermal...Moldanubian Zone VII.C.I Stratigraphy J. FIALA, G. FUCHS, andJ.1. VII.C.2 417 SYNEK . . . . . . . . ....Geological Survey of Hessen Leberberg 9 65193 Wiesbaden Germany V. BACHTADSE Institut fur Allgemeine und Angewandte |  | Grare, Alexis, Benedicto, Antonio, Lacombe, Olivier, Trave, Anna, Ledru, Patrick, Blain, Mario, Robbins, John (2018) The Contact uranium prospect, Kiggavik project, Nunavut (Canada): Tectonic history, structural constraints and timing of mineralization. Ore Geology Reviews, 93. 141-167 doi:10.1016/j.oregeorev.2017.12.015 | Journal (article/letter/editorial) | | of these types of deposits in this prospective district. This article deciphers the complex multiphase...LeCheminant, 1985, Fuchs et al., 1986, Weyer et al., 1987, Fredrich et al., 1989, Fuchs and Hilger, 1989;...Contact prospect is the latest discovery in the district and was found using a multidisciplinary approach...altered (i.e. fault damage zone or fault core) the lower the probability of getting drillcore suitable for...of the QB. This initial mineralization with pitchblende and coffinite with other uranium oxides (see |  | | Journal (article/letter/editorial) | | basementrocksinclude mationhasbeen eroded (Miller et al., 1984; Fuchs ArchcanandearlyProterozoicrockswhichhavebeen et...M,dwest Lake AthabascaGroup comprisesa fluvial lower part of 17 M•ddle Lake quartzarenitesandconglomerates...westernChurchillprovinceis reflectedby the the matrix of lower beds of both basins. Some of these strikeof the...due to the indhi, 1989).Fracture-controlled pitchblende veinsalso trusion of the Mackenzie diabase dikes...mentrocksin the areagaveno indicationof the cause pitchblende,galena,chalcopyrite,Co-Ni selenide,Cd of the |  | Zou, Mingliang, Liu, Zhangyue, Huang, Hongye, Li, Jie, Liu, Xingyang, Guo, Chunying, Li, Jian, Liang, Xiao (2019) Microstructural analysis of pitchblende in the Miaoershan area using TEM lattice imaging. Mineralogy and Petrology, 113 (6) 847-857 doi:10.1007/s00710-019-00678-8 | Journal (article/letter/editorial) | | ORIGINAL PAPER Microstructural analysis of pitchblende in the Miaoershan area using TEM lattice imaging...paper aims to reveal the formation process of pitchblende by analyzing its microstructural features on...nanoscale and atomic scale. Herein, we selected pitchblende samples from drilling cores from the Miaoershan...research objects. The microstructural features of pitchblende particle cores were analyzed using high-resolution...calculations. The results of this study reveal that the pitchblende grain boundaries are not clear, as they exhibit |  | | Journal (article/letter/editorial) | | similar to the synthetic coffinite, prepared by Fuchs and Hoekstra (1959), through the absence of an essential...The temperaturerange under which coffiniteforms (Fuchs and Iloekstra, 1959) and the temperature of induration...describedthucholite associatedwith gold in pitchblende veins in the Goldfields district of Saskatchewan, Canada. Bowie...a sample from this occurrenceand found fine pitchblende associated with chalcopyrite, bornite, covellite...conditions under which coffinite has been synthesized(Fuchs and Hoekstra, 1959), point to coffinite as a mineral |  | | Book | | . . . . . . . . . . . . . . . . . . . . . . Pitchblende-Pyrite ( ± Pb, Cu, Ag Sulfides) Type . . . ..... . . . . . . . . . . . . . . . . Siliceous Pitchblende-SuIBde Veins . . . . . . . . . . . . . . . ....concentTation of uranium in its deposits begins at a lower limit of about 1,000 ppm (McKelvey et al., 1955)...radioactive, is always well crystallized. Metamict pitchblende ( uraninite) has been reported ( Conybeare and...prefixed by meta ( e.g., metatorbernite); if hvo lower hyd.rates exist, they may be designated meta-I and |  | | Book | | Hartenstein Germany a.hiller@wismut.de Dr. Manfred Schauer Am Hexenberg 8 09224 Chemnitz Germany Günter...Florastraße 17 09131 Chemnitz Germany Udo Zimmermann Am See 16b 01796 Pirna Germany ISBN: 978-3-540-78553-8 ISBN...(Hungary), H. J. Förster (Germany), R. Fritsche (Germany), A. Hiller (Germany), J. Hruby (Czech Republic)... Bojkov (Bulgaria), H. Schleicher (Germany), W. Schuppan (Germany), A. Steenfelt (Denmark/Greenland).... . . . . . . . . . . . . . . . 2.1.1 Bukhovo District .. . . . . . . . . . . . . . . . . . . . . . |  | Riegler, T., Lescuyer, J.-L., Wollenberg, P., Quirt, D., Beaufort, D. (2014) ALTERATION RELATED TO URANIUM DEPOSITS IN THE KIGGAVIK-ANDREW LAKE STRUCTURAL TREND, NUNAVUT, CANADA: NEW INSIGHTS FROM PETROGRAPHY AND CLAY MINERALOGY. The Canadian Mineralogist, 52 (1) 27-45 doi:10.3749/canmin.52.1.27 | Journal (article/letter/editorial) | | further exploration work to detect alteration zones (Fuchs et al. 1986, Hasegawa et al. 1990). This target...et al. 1987). However, geochronology done on pitchblende (bulk U/ Pb) showed a younger but discordant...well as in the mineralized structures, and (2) a lower average ore grade (around 0.5%). The goal of the...association with pitchblende and displays features of cogenetic growth, with inclusions of pitchblende inside apatite...apatite or coatings of colloform pitchblende around apatite and titanium oxides. Ore Paragenesis Uranium |  | | Book | | Design: Hansbernd Lindemann, Berlin. Printed in Germany. Preface More than thirty years ago, microprobe...Chapter 1 Introductory Concepts Chapter 4 Mantle and Lower Crust Derivatives Chapter 5 Replacement Patterns...hydrothermal veins. (ii) The granite intrusion mobilized lower crustmantle material due either to deep seated granitization...shales, hornfels and granites of the Harzburg district, showed that the amount of boron decreases from...segregation also takes place under considerably lower temperature conditions. Augustithis has described |  | Sharpe, Ryan, Fayek, Mostafa, Quirt, David, Jefferson, Charlie W. (2015) Geochronology and Genesis of the Bong Uranium Deposit, Thelon Basin, Nunavut, Canada. Economic Geology, 110 (7) 1759-1777 doi:10.2113/econgeo.110.7.1759 | Journal (article/letter/editorial) | | LeCheminant, 1985; Fuchs et al., 1986; Weyer et al., 1987; Fredrich et al., 1989; Fuchs and Hilger, 1989)...LeCheminant, 1985; Fuchs et al., 1986; Weyer et al., 1987; Friedrich et al., 1989; Fuchs and Hilger, 1989;...described the uranium mineralization as primary pitchblende and lesser secondary coffinite. Associated alteration...reactions in the formation of these deposits (Fuchs et al., 1986; Fuchs and Hilger, 1989; Riegler et al., 2014)...May 12, 2015 1760 SHARPE ET AL. separated pitchblende, coffinite, and galena using a microscope, analyzed |  | | Journal (article/letter/editorial) | | Shalesfrom the Graefenthal Horst (Northern Bavaria-FederalRepublic of Germany) H. DILL FederalInstitutefor Geosciences...Republicof Germany Abstract The Graefenthalhorst,situatedin the northernpart of Bavaria,formspart of...ionfrom lower Carboniferous to upper Carboniferous). Within this sequencethe Silurian lower graptoliteshales(about...graptoliteshales(about 30 m thick) and Lower Devonian upper graptoliteshales (10-20 m thick)are of widespreadoccurrence...of the Varied Group, Devonian black shales, and lower Carboniferous Russchiefer (Franconian Forest)in |  | | Book | | Franz J. Dahlkamp OlbergstraBe 10 D-5307 Wachtberg Germany ISBN 978-3-642-08095-1 Library of Congress Cataloging...individual deposits or districts. (in brackets country, district, deposit reviewed): Adamek P. (Scandinavia), Adams...Australia), Fritsche R (mineralogy), Fohse H. (general), Fuchs H. (Brazil), Grauch R (western USA), Gautier A....(Wyoming Basins, USA), Hruby J. (CSFR), Kolb S. (Bavaria, W-Germany), Krol W. (Eastern Europe), Matos Dias J.... . . 4.7 Type 7 Quartz-pebble Conglomerate (Lower Proterozoic) . . . . . . . . . . . . . . . .... |  | | Book | | Hawaii Advisory Board R.N. Anderson, Lamont K. Fuchs, Karlsruhe W.S. Fyfe, London (Canada) H. Rischmiller...the deep continental crust) Crust. 3. Geology - Germany (West) — OberWohlenberg, Jiirgen, 1933- . III....Springer-Verlag Berlin Heidelberg 1989 Printed in Germany The use of registered names, trademarks, etc....Republic of Germany (KTB) would be drilled in the Oberpfalz area of Northern Bavaria. The site...ostererer a ekare Geochronology of the Northeast Bavaria Dele UE ODOD 00 COS. 00LCOO ORC OOO COORD OEOODOC |  | Hu, R.-Z., Bi, X.-W., Zhou, M.-F., Peng, J.-T., Su, W.-C., Liu, S., Qi, H.-W. (2008) Uranium Metallogenesis in South China and Its Relationship to Crustal Extension during the Cretaceous to Tertiary. Economic Geology, 103 (3) 583-598 doi:10.2113/gsecongeo.103.3.583 | Journal (article/letter/editorial) | | concentrations of uranium minerals, typically pitchblende, in open spaces, such as fractures, fissures...those in Hercynian granites of the La Crouzille district of the Massif Central, France (Leroy, 1978; Ruzicka...weakly metamorphosed pelitic rocks in the Pribram district, Czechoslovakia (Ruzicka, 1993), and in volcanic...South China consists mainly of folded Paleozoic and lower Mesozoic strata of shallow marine origin (Yan et...dolostones and argillaceous siltstones and overlain by Lower and Middle Silurian shales and fine-grained sandstones |  | | Journal (article/letter/editorial) | | the main ore stages in the veins and intrude the lower strata of the Hornby Bay Group. While diabase intrusions...the mineralized fault zone and deposition of lower Hornby Bay Group strata that are comparable to those...distributed in the Echo Bay-Camsell River mining district, and are part of an extensive dike swarm striking...faults was noted at several places in the mining district (Hildebrand, 1983, 1985). Two of these dikes encountered...results provide the minimum age for deposition of the lower part of the Hornby Bay Group. Younger Proterozoic |  | | Journal (article/letter/editorial) | | Poppelsdorfer SchloB, D-5300 Bonn 1, Federal Republic of Germany Received April 4, 1989 / AcceptedOctober t0, 1989...deposit is located near Baker Lake in the Keewatin district, Northwest Territories, Canada (Fig. t). Uranium...Hydrothermal pitchblende and coffinite mineralization is related to NW-SE oriented fault zones (Fuchs et al...minerals and a hydrothermal solution occurred at lower temperatures. Temperatures in the range of 300+_40~...1969) and the calculated fractionation between pitchblende and water (Hattori and Halas 1982). Oxygen isotope |  | | Journal (article/letter/editorial) | | by replacement of preexisting uraninite and pitchblende or by complexation/reduction mechanisms in pre-existing... (1951); Parnell, (1988a); Eakin, (1989a). Pitchblende mineralisation in sub - Miller and Taylor, (1966)...to the hydrocarbons later reprecipitated as pitchblende inclusions. Parnell (1988a) considered organised...Reflected-light microscopy confirms the presence of pitchblende in the bitumens from the northeast Wales orefield...grains each cluster being surrounded by larger pitchblende inclusions up to 3 ~tm in diameter (Fig. 1.5) |  | | Journal (issue) | | Boreholes in the Carboniferous rocks of the.A:s:hover district, Derbyshire, by W. H. C. Ramsbottom, M.A., Ph...Appendix A: Petrography of the Fallgate and Milltown Quarry boreholes, by R. W. Elliot, B.Sc. . . . .· Appendix...radiometry of the Castleton district Radiometry of the east face of Windy Knoll Quarry, near Castleton Radiometry...'radiocolloids' in coffinite, and a typical pitchblende iv 2 4 4 6 6 10 13 15 16 19 20 25 27 ...SE. side. The predominant uranium mineral is pitchblende, which is associated with hydrocarbon, chalcopyrite |  | | Book | | 195. Brookite . Uran - ochre ( Zippeite). Pitchblende. Chalcolite (Uranite ). Autunnite. ORDER XVII...Cornwall ; near Tuckingmill, Cam borse, and is a gre quarry on Kergiliack estate near Pen a. Coberard ; at...COMBINATION. 209. Uran - ochre (Zippeite ). 210. Pitchblende. 211. Chalcolite (Uranite ). 212. Autunnite...Cornwall; near Tuckingmill, Cam borne, and in a granite quarry on Kergiliack estate near Pen ryn . Cumberland...the Orkneys. Note. - Wilson says of the Binney quarry freestone, - " It has been for many years used |
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