 | | Journal (article/letter/editorial) | | Universität Freiburg, Albertstrasse 23b, 79104 Freiburg, Germany b c Received 1 August 2005; accepted 13 March...shortite, trona, thermonatrite, nahcolite and calcite. Generally, the first important step is the formation...formation of pirssonite and the end-members are calcite carbonate rocks or loose aggregates. Fumarolic...natrocarbonatite leads to the formation of sulphur, gypsum, calcite, anhydrite, monohydrocalcite, barite and celestine...“Lengai Box” to high values of δ18O and δ13C. Calcite exhibits δ13C values between − 2‰ and −4‰ PDB and |  | | Book | | lithofacies and important microfossils in the Butkov quarry (Ladce cement factory) section (Manin Unif Strzovske...lithofacies and important macrofossils in the Rutkov quarry (Ladce cement factory) section (Manin Unit, StdZovskk...Triacfoma diagenesis, both sides of the rhombohcdric calcite layer echioides FOREMAN, Podocapsa amphihepfera...the radiolarian assem- cover of skalenohcdric calcite c~ystals during Parvi- diagenesis. Skalenohcdcrs...(LOZYNIAK), WEE thinner and primarily contained morc calcite Ilitrabs sansalvatorensis ~ESSAGNO), Alievium bodies |  | Zaitsev, A. N., Keller, J., Spratt, J., Perova, E. N., Kearsley, A. (2008) NYEREREITE - PIRSSONITE - CALCITE - SHORTITE RELATIONSHIPS IN ALTERED NATROCARBONATITES, OLDOINYO LENGAI, TANZANIA. The Canadian Mineralogist, 46 (4) 843-860 doi:10.3749/canmin.46.4.843 | Journal (article/letter/editorial) | | 3749/canmin.46.4.843 NYEREREITE – PIRSSONITE – CALCITE – SHORTITE RELATIONSHIPS IN ALTERED NATROCARBONATITES...Freiburg, Albertstrasse 23b, DE–79104 Freiburg, Germany John SPRATT Department of Mineralogy, The Natural...low-temperature subsolidus minerals: pirssonite, calcite, shortite, nahcolite, trona, thermonatrite, jacobsite...sequence of formation: nyerereite ! pirssonite ! calcite ! shortite. Three major processes, mineral dissolution...shortite carbonatite and calcite carbonatite. Nyerereite – pirssonite – calcite relationships depend on |  | | Journal (article/letter/editorial) | | Neogene volcanics, the “Transylvanian”, Bucovinian (Uhlig, 1907) and the flysch nappes (Săndulescu, 1984) of...south (Fig. 4) of the Eastern Carpathians. In 1907 Uhlig discovered the nappe structure of the EC and called...sheeted-dyke complex was found in PM (Sărmanului Quarry). Breccias, particularly in RA and HAG are frequent...most common alteration products are chlorite and calcite, which very often form pseudomorphs after clinopyroxene...minerals is subordinate, compared with chlorite and calcite. Spinels are often transformed into Fe-oxides. |  | | Journal (article/letter/editorial) | | identical and others closely allied. Until Professor Uhlig has completed his researches on the fauna of the...of the shell, are apparently 1 2 3 Griesbachi, Uhlig. of an Oppelia may be compared Spiti Shales; the...Siemeradzki, op. cit., p. 110, pi. xx, fig. 2. 5 Uhlig, Fauna of the Spiti Shales, Palaeont. Indica, ser...ammonoid almost wholly replaced by crystalline calcite, but showing in one part the suture-line, the characters...to Carnarvon, the other from the Penrhyn Slate Quarry through Llanberis to the village of Llanllyfni |  | | Journal (article/letter/editorial) | | cyclical limestone with common stylolites and calcite veining. The limestones contain vitreous black...exposure in the stream bed and the first subsurface quarry, this interval is also cut by small faults, which...supplementary data Fig. S3A). Within the first quarry, the almost vertical Morro limestones revealed...deep-water setting by pelagic deposition, above the calcite compensation depth (CCD). The repetitive nature...collections of the na University of Tubingen (Germany) but most of the specimens that were re-examined |  | | Journal (article/letter/editorial) | | bay deposits at the southern margin of the Lower Saxony Basin: Integrated stratigraphy, palaeoenvironment...of Bremen, Klagenfurter Strasse, 28357 Bremen, Germany. E-mail: jens.lehmann@uni-bremen.de , E-mail: vbargen@uni-bremen...Frankfurt, Altenhöferallee 1, 60438 Frankfurt/Main, Germany. E-mail: o.friedrich@em.uni-frankfurt.de 3 Bookenbusch...Bookenbusch 25; 48683 Ahaus-Alstätte, Germany. E-mail: t.hemker@gmx.de ABSTRACT: Lehmann, J., Friedrich...bay deposits at the southern margin of the lower Saxony Basin: Integrated stratigraphy, palaeoenvironment |  | Chang, Yunni, Xu, Chaobin, Qiu, Junting, Peñuelas, Josep, Sardans, Jordi, Zeng, Hanzhao, Zhong, Quanlin, Li, Baoyin (2023) C, N, and P Stoichiometry Characteristics of Fresh and Weathered Sandstones in Longhushan Area, SE China. Minerals, 13 (4) 483 doi:10.3390/min13040483 | Journal (article/letter/editorial) | | observations show that fresh sandstones contain calcite, apatite, microplagioclase, and organic matter...(Elementar Vario EL III; Elementar, Langenselbod, Germany) and the molybdenum-antimony anti-colorimetric...(Elementar Vario EL III; Elementar, Langenselbod, Germany) and the molybdenum-antimony anti-colorimetric...which can be observed in some weathered samples. Calcite cementations that are characterized by rhombic...samples. Note: = quartz; pl. = microcline; ca. = calcite; ap. = apatite; ka. = kaolinite; He. = hematite; |  | Schuessler, Jan A., von Blanckenburg, Friedhelm, Bouchez, Julien, Uhlig, David, Hewawasam, Tilak (2018) Nutrient cycling in a tropical montane rainforest under a supply-limited weathering regime traced by elemental mass balances and Mg stable isotopes. Chemical Geology, 497. 74-87 doi:10.1016/j.chemgeo.2018.08.024 | Journal (article/letter/editorial) | | Friedhelm von Blanckenburg, Julien Bouchez, David Uhlig, Tilak Hewawasam PII: DOI: Reference: S0009-2541(18)30421-2...Friedhelm von Blanckenburg, Julien Bouchez, David Uhlig, Tilak Hewawasam , Nutrient cycling in a tropical...for Geosciences, Telegrafenberg, 14473 Potsdam, Germany, fvb@gfz-potsdam.de 2 also at Freie Universität...Geological Sciences, Malteserstr. 74-100, 12249 Berlin, Germany 3 present address: IPGP-CNRS Institut de Physique...scales they precipitate as carbonate sediments (calcite and dolomite). The PT biological cycling of Ca |  | Oelkers, Eric H., Butcher, Rhiannon, Pogge von Strandmann, Philip A.E., Schuessler, Jan A., von Blanckenburg, Friedhelm, Snæbjörnsdóttir, Sandra Ó., Mesfin, Kiflom, Aradóttir, Edda Sif, Gunnarsson, Ingvi, Sigfússon, Bergur, Gunnlaugsson, Einar, Matter, Juerg M., Stute, Martin, Gislason, Sigurdur R. (2019) Using stable Mg isotope signatures to assess the fate of magnesium during the in situ mineralisation of CO2 and H2S at the CarbFix site in SW-Iceland. Geochimica et Cosmochimica Acta, 245. 542-555 doi:10.1016/j.gca.2018.11.011 | Journal (article/letter/editorial) | | for Geosciences, Telegrafenberg, 14473 Potsdam, Germany 5 Reykjavik Energy, Iceland 6 Ocean and Earth Science...to the formation of carbonate minerals such as calcite, magnesite, and siderite as the continued dissolution...2012; Oelkers et al., 2015; Pokharel et al., 2017; Uhlig et al., 2017). In this study the Mg isotope systematics...alteration minerals at this depth are smectite, calcite, Ca-rich zeolites, and poorly crystalline iron-hydroxides...respect to Ca-zeolite, analcime, Ca–Mg–Fe smectite, calcite, and aragonite, and some are supersaturated with |  | | Report (chapter) | | ‘classic’ European basins; that is, the Anglo-Paris and Saxony and, typical, Tethyan basins of southern Spain...the type locality of the ‘Pennrich Fauna’ is a quarry at Dresden-Pennrich but it is widely distributed...area, Czech Republic and Poland (Häntzschel 1933; Uhlig 1941; Tröger 2004); this type of fauna is similar...et al. 1999; Tezra, Morocco: Tantawy 2008; NW Germany: Linnert et al. 2010) above the OAE2. Tsikos et...3‰, relative to diagenetically unaltered marine calcite of similar age. In Pueblo, Colorado, at the GSSP |  | | Journal (article/letter/editorial) | | Five years ago, in the company of a friend, Phil Uhlig, during a lunch hour in Manhattan, I stopped at...in fie'd activities. He brought us to Strickland Quarry outside of Portland, Conn, (we were accompanied...lives, finding nice pieces of autunite, beryl, calcite, cleavelandite, columbite, purple fluorite, tiny |  | | Journal (article/letter/editorial) | | Erzgebirge and the deposits of the Harz Mountains (Germany), Přı́bram and Kutná Hora (Czech Republic), Kokanee...quantities of sulphide minerals (e.g., Rhenish Massif, Germany; Gemericum, Slovakia; some veins at Coeur d’Alene...siderite mineralization of the Rhenish Massif, Germany (one of the largest occurrences of siderite in...siderite, ankerite II, sulphide minerals, quartz II, calcite. Detailed descriptions of individual deposits are...Gemericum in the early 20th Century. Voit (1901) and Uhlig (1903) supposed genetic relationship between siderite |  | | Journal (issue) | | Schneeberg Mining District, Western Erzgebirge, Saxony, Germany ....................................... 620...Schneeberg District in the famous Saxon Erzgebirge of Germany has been a source of mineral specimens and mineral...Sammlungen, Brennhausgasse 14, D-09599 Freiberg, Germany. Email: Andreas .Massanek@geosamm.tu-freiberg.de...de 2 Naunhoferstrasse 49, D-04299 Leipzig, Germany. Email: info@sm -mineral.de 3 Senckenberg Naturhistorische...Dresden, Germany. Email: Klaus.Thalheim@senckenberg.de 4 Teichstrasse 22, D-08321 Zschorlau, Germany. Email: |  | | Report (issue) | | into the excavation and subsequently the adjacent quarry face collapsed (Plate 3B). Similarly in the main...has been very tightly folded in two places in the quarry faces (Fig. 4). The disturbances are related to...of fossiliferous shell debris and fine grained calcite mud or micrite, to thinner ripple- marked laminated...and some unbroken shells. As the proportion of calcite mud ( micrite) increases they grade into homo...ragmental -pellet- oolith ro cks with micrite and calcite m atrix . V ariatio n in the proportions o f the |  | | Journal (article/letter/editorial) | | YahrbuchMineralo#ic, x9•5, Bd. 38, pp. 759-804. 2 Uhlig, Centralblatt, Min., x9x5, pp. 38-44. s Personal...along with crystal growth and drusesof quartz and calcite. A few are found singly in the marble, appar.entlyformed...interiorscompletely. The emeraldsoccur in or with the calcite,being apparentlycontemporaneous with it, as are...with and within crystal growths of quartz and calcite,seemsincontrovertibleevidencethat they are a secondary |  | | Journal (article/letter/editorial) | | calcareous sandstone, with a cement of crystalline calcite. A sample of the soft weathered sandstone, when...N.E. of Gamlingay. The orchard is really an old quarry, but most of it is now overgrown. On one side,...lobe, though it is connected through A. Lorioli, Uhlig, sp. (with a sub-bifid first lateral lobe), with...the various forms of MacroscaphitinsB figured by Uhlig 4 ). Sarasin and Schondelmayer6 wrote in this connexion: |  | | Journal (article/letter/editorial) | | and many other Alpine geologists. Then in 1903 W. Uhlig extended the conclusions that E. Haug had arrived...area of fossil deep-sea deposits in the world. W. Uhlig (1910, 1911) called attention to the fact that at...latter are filled with coarsely crystalline barite. Uhlig attributed a bathyal origin to these shales and...European geologists, this view was shared by W. Uhlig (1911). Downloaded by [University of California...aragonite is calculated as 4100 m, and that of calcite 4500 in. These depths vary somewhat between various |  | | Journal (article/letter/editorial) | | volcanic rocks of the subErzgebirge basin, Saxony (Germany) Jens Götze, Robert Möckel, Torsten Vennemann...volcanic rocks of the sub-Erzgebirge basin, Saxony (Germany), Chemical Geology (2016), doi: 10.1016/j.chemgeo...volcanic rocks of the PT Sub-Erzgebirge basin, Saxony (Germany) a TU Bergakademie Freiberg, Institute for...Mineralogy, Brennhausgasse 14, 09596 Freiberg, Germany Institut de Minéralogie et Géochimie, Université...Technology, Halsbrücker Str. 34, 09599 Freiberg, Germany TE b SC RI Jens Götzea*, Robert Möckelb, Torsten |  | | Journal (article/letter/editorial) | | year has revealed that in Normandy and North-West Germany where there is no separate catena zone the species...aragonite and those of oysters and Serpulae were of calcite. The conclusion is that the Elsworth and St. Ives...was on the site of an older excavation, perhaps a quarry, from which the Elsworth rock had been removed...vesuntina Maire Peltoceras sp., cf. interscissum Uhlig, de Loriol (1898, pi. vii, fig. 18) . 313-17 A....ribbing is as in de Loriol's P. cfr. interscissum Uhlig (de Loriol, 1898, pi. vii, fig. 18). 6. SUMMARY |  | | Journal (article/letter/editorial) | | Potsdam, Germany Institute of Geological Sciences, Freie Universität Berlin, 12249 Berlin, Germany c BAM...Materials & Environment, 12205 Berlin, AN b Germany Department of Biology, Chemistry and Pharmacy...Pharmacy, Freie Universität Berlin, 14195 Berlin, Germany 1 current address: Université de Rennes, Ecole Nationale...address: Thermo Fisher Scientific, 28199 Bremen, Germany 1 Corresponding author phone: 0033 223 23 81...Shirokova et al., 2013; IP Tipper et al., 2010; Uhlig et al., 2017). In an abiotic dissolution experiment |  | Müller, Daniel, Kaminski, Klaus, Uhlig, Stephan, Graupner, Torsten, Herzig, Peter M., Hunt, Steve (2002) The transition from porphyry- to epithermal-style gold mineralization at Ladolam, Lihir Island, Papua New Guinea: a reconnaissance study. Mineralium Deposita, 37 (1) 61-74 doi:10.1007/s00126-001-0230-y | Journal (article/letter/editorial) | | L E Daniel Müller Æ Klaus Kaminski Æ Stephan Uhlig Torsten Graupner Æ Peter M. Herzig Æ Steve Hunt...1007/s00126-001-0230-y D. Müller (&) Æ K. Kaminski Æ S. Uhlig T. Graupner Æ P.M. Herzig Institut für Mineralogie...Freiberg, Brennhausgasse 14, D-09596 Freiberg, Germany E-mail: damuell@mineral.tu-freiberg.de Fax: +49-3731-392610...rocks. These breccias were healed by anhydrite and calcite precipitation at depth (‘anhydrite seal’). The...andesite lavas are brecciated and healed with calcite–anhydrite veins that are referred to as crackle |  | | Journal (issue) | | Minerals from the Volcanic District of Laacher See, Germany..................................................Lieber Heidelberg, West Germany Olaf Medenbach Bochum-Querenburg, West Germany Eric Offermann Arlesheim...desire is to visit Norway on collecting tours. In Germany there are still more, also with their own jour...from earlier visitors. A “Director of Studies” in Germany has given out, despite Norwegian protests, a guide...served as The first probings in the Lengenbach quarry BINNA VALLEY. cook while Leopold Jentsch was the |  | | Book | | Universitat Freiburg Albertstr. 23b 79104 Freiburg Germany This volume is a Contribution of the IGCP Project...greatly to the volume. Ottawa, Canada Freiburg, Germany October 1994 KEITH BELL JORG KELLER Contents...Universitat Freiburg, Albertstr. 23b, 79104 Freiburg, Germany 3 Department of Anthropology, St Lawrence University...climb, Uhlig and Gunzert, stopped 250 m below the summit. In his reports of the expedition, Uhlig (1905...sodium salt" (Uhlig 1905), is the first, unwitting report of natrocarbonatite lavas. Uhlig also recorded |  | | Journal (article/letter/editorial) | | of the Duruchaus Formation (Behr et al., 1983; Uhlig, 1987). These are interbedded with sequences of...Tourmalinites at the Stolzenfeld Farm locality (Uhlig, 1987; Schalk, 1988) are finely laminated (0.2–3...rocks contain significant amounts of dolomite and calcite as well as biotite and muscovite. The tourmalinites...tourmaline and quartz with lesser amounts of dolomite, calcite, biotite (XMg = 0.75), rutile, muscovite, and locally...localities contain significant amounts of dolomite and calcite as well as biotite and muscovite – indicative of |
|
