 | | Journal (article/letter/editorial) | | UniÕersitat ¨ Heidelberg, INF 234, D-69120 Heidelberg, Germany Received 5 February 1998; accepted 24 March 1999...from different sub-alpine mountain terrains in Germany and France has been undertaken. The objective of...On the basis of their protores, carbonate- and lower oxidersilicate-derived occurrences may be discerned...specimens sampled from the same location Žmine, quarry, dump., potentially representing different episodes...the low-temperature stages, thereupon dropping to lower values with further heating; Žc. U-shaped discordant |  | | Journal (article/letter/editorial) | | contained crystalline goethite and rancieite/todorokite. Adsorption on a synthetic analog sorbent (0...Me(II)EDTA’- complexes are adsorbed by Fe and Al oxides at lower pH via surface coordination (Bowers and Huang, 1986;...surfaces by a modified version of the method of Stahl and James ( 1991). The Fe sand was prepared by the...oriented mounts (Fig. 2) suggested the presence of todorokite (0.95,0.48,0.45,0.32,0.245,0.228,0.142 nm) and...more consistent with the - 1 .O nm phase being todorokite, rather than romanechite or lithiophorite, and |  | Tebo, Bradley M., Bargar, John R., Clement, Brian G., Dick, Gregory J., Murray, Karen J., Parker, Dorothy, Verity, Rebecca, Webb, Samuel M. (2004) BIOGENIC MANGANESE OXIDES: Properties and Mechanisms of Formation. Annual Review of Earth and Planetary Sciences, 32. 287-328 doi:10.1146/annurev.earth.32.101802.120213 | Journal (article/letter/editorial) | | differs from the double or triple chains (e.g., todorokite or hollandite) in tunnel diameter and thus surface...into Figure 2 Examples of the chain/tunnel (todorokite, hollandite, and ramsdellite) and layer (birnessite)...charge-balancing cations (Ca, Na, and K) are not shown for todorokite. 7 Apr 2004 21:4 AR AR211-EA32-11.tex AR211-EA32-11...(i.e., buserite) from tunnel manganates (i.e., todorokite), which are neither collapsible nor expandable...1985, Takamatsu et al. 1985, Todd et al. 1988, Stahl & James 1991, Wei & Murray 1991, Nicholson & Eley |  | | Book (edition) | | Mineralogie, Malteserstr. 74-100, D-12249 Berlin, Germany Earth Science Department / College of Science,...Feld 236, D-69120 Heidelberg, Germany Sodenstr. 19, D-12309 Berlin, Germany Graslitzer Str. 5, D-63791 Karlstein...Karlstein am Main, Germany Ludwig-Maximilians Universität, Department für Geo- und Umweltwissenschaften...Ressourcengeologie, Luisenstr. 37, D80333 München, Germany Bundesanstalt für Geowissenschaften und Rohstoffe...Rohstoffe (BGR), Stilleweg 2, D-30655 Hannover, Germany Dr. Salah Al-Khirbash Prof. Dr. Rainer Altherr & |  | Och, Lawrence M., Müller, Beat, Voegelin, Andreas, Ulrich, Andrea, Göttlicher, Jörg, Steiniger, Ralph, Mangold, Stefan, Vologina, Elena G., Sturm, Michael (2012) New insights into the formation and burial of Fe/Mn accumulations in Lake Baikal sediments. Chemical Geology, 330. 244-259 doi:10.1016/j.chemgeo.2012.09.011 | Journal (article/letter/editorial) | | Synchrotron Radiation, D-76344 Eggenstein-Leopoldshafen, Germany e Institute of the Earth's Crust, Siberian Branch...showing that the upper Fe/Mn layer formed at the lower end of the oxygen penetration depth as a dynamic...reductive dissolution of Mn(IV) occurred at the lower margin. Upward diffusing Mn(II) was oxidized with...contamination. The largest 108° in 104° ng while the lower one is buried within the reducing, older sediment...micro-optode (PSt1, PreSens GmbH, Regensburg, Germany; www.presens.de) mounted to a Newport micromanipulator |  | | Book | | Loch Fyne contain higher contents of manganese and lower contents of copper, nickel and cobalt than oceanic...before, although nodules from the English lake district were not discovered until the 1950's (Gorham and...countries involved are the United States, Japan, West Germany and France. In November 1972, the Hughes Glomar...metre of 48 gravity cores t o be 1.7, slightly lower than Menard’s figure. The surface to depth ratio...many nodules as at the surface, a considerably lower proportion than found by Cronan (1967) in Pacific |  | | Journal (article/letter/editorial) | | Red Sea (Fig. 1) . The salt concentration of the lower part of the brine pool of about 27% TDS is close...oceanic basalts (Carwile and Faure, 1971; Schoell and Stahl, 1972; Delevaux and Doe, 1974; Lupton et al., 1977;...line, shows the extent of the Atlantis II Deep lower brine. chaff, 1980). Numerous studies (see Bischoff...Core 683 of the southwestem basin (Fig. 2). The lower unit (Unit L) consists of anhyd&e (lo70 wt%), talc...The~unit(URitW)ises~lycormrogeaofaatrydrite (80-90 wt%j-in its lower part ( 1180- 1lk cm): At 1090 c& sulfides represent |  | | Journal (article/letter/editorial) | | the polar nature of this pyramidal form. Also, at lower pH, birnessite is more soluble and could have produced...tunnel structures (hollandite, romanecheite, todorokite) (Turner and Buseck, 1981) may be extremely effective...ion-exchange: Talanta 5,371373. Giovanoli, R., Stahl, E., and Feitknecht, W. (I970a) Dber Oxidhydroxide |  | Hein, James R., Ahn, Jung-Ho, Wong, J.C., Kang, Jung-Keuk, Smith, V.K., Yoon, Suk-Hoon, d'Angelo, W. M., Yoo, Sang-Ok, Gibbs, A.E., Kim, Han-Joon, Quinterno, P.J., Jung, Moon-Young, Davis, A.S., Park, Byong-Kwon, Gillison, J.R., Marlow, M. S., Schulz, M.S., Siems, D.F., Taggart, J.E., Rait, Norma, Pickthorn, L.G., Malcolm, M.J., Kavulak, M.G., Yeh, Hsueh-Wen, Mann, D. M., Noble, M.A., Riddle, G.O., Roushey, B.H., Smith, Hezekiah (1992) Geology, geophysics, geochemistry, and deep-sea mineral deposits, Federated States of Micronesia; KORDI-USGS R.V. Farnella Cruise F11-90-CP. Open-File Report Vol. 1992 (92-218) US Geological Survey doi:10.3133/ofr92218 | Report (issue) | | and 2630 m water depths. Dredges 4 and 5 on the lower flank recovered basall capped by reef limestone...strata as thick as 300-400 m at the south end. The lower sedimentary units dip to the south and discordantly...at the center of the profile. Stratigraphically lower beds in the basin dip to the south and are discordantly...plain that rises to the west, which may mark the lower east flank of Luhk ! Seamount. j Olapahd Seamount...24 recovered limestone and minor basalt from the lower east flank. WATER COLUMN STUDIES Eleven CTD-oxygen |  | Fredrickson, James K., Zachara, John M., Kennedy, David W., Liu, Chongxuan, Duff, Martine C., Hunter, Douglas B., Dohnalkova, Alice (2002) Influence of Mn oxides on the reduction of uranium(VI) by the metal-reducing bacterium Shewanella putrefaciens. Geochimica et Cosmochimica Acta, 66 (18) 3247-3262 doi:10.1016/s0016-7037(02)00928-6 | Journal (article/letter/editorial) | | synthesized by a modification of the method of Stahl and James (1991) and had a surface area of 0.9 m2...pyrolusite. The reason for the deviation from one at the lower pyrolusite concentration is unclear. 3. RESULTS...bioavailability of Mn(III/IV) may be significantly lower than soluble U(VI) complexes. Insights into the...but the net rate of reduction was significantly lower because of the oxidation of U(IV) by the oxides...table Mn, respectively. Mn oxides (primarily todorokite) associated with Hanford Ringold Formation sediments |  | | Book | | zeolite catalysts, also higher octane number and lower pollutants in automobile exhausts; clearer multipane...negative charge resulting from substitution of lower valence cations in both the tetrahedral and octahedral...are equal), shifting the pznc to significantly lower pH values (32, 33, 35, 36 and 37). Conversely, Fe...organic-mineral interactions or surface coatings, which lower the pznc of the mineral assemblage compared with...higher negative charge and a pznc shifted to much lower values than predicted based on bulk mineralogical |  | | Book | | Named after Dr. Friedrich Ahlfeld, of Marburg, Germany. [M.A., 6, 147.] 14th List [NiSe03.2H20; Canad...a veinlet of Co and Ni minerals in a serpentine quarry near Oxford, Llano Co., Texas, contains red-violet...merchants, London. Also called ‘Princess Blue’. (The Quarry, London, 1908, vol. xiii, p. 257. W. G. Ren wick...coast of Tunis. The silica percentage is rather lower than that required by the albite-anorthite series...dehydrated saponite (from Grosschlattengriin, Bavaria). An endothermal peak at 600°C. is attributed to |  | | Journal (article/letter/editorial) | | niversity Mainz, D-55099 Mainz, Becherweg 21, Germany a r t i c l e i n f o Article history: Received...combining the commodity (lines) shown by numbers plus lower caps with the host rocks or structure (columns)...“Gesellschaft für Metall-, Hütten- und Bergleute” in Germany (GDMB). These data have been reported in the final...fallen out of use, excluding uranium in modern-day Germany. Exploration does not place the main emphasis on...(“borax”) Tinzenite Tirodite Tischendorfite Tlapallite Todorokite Topaz Torbernite Tourmaline, rubellite, indigolite | | | Journal (article/letter/editorial) | | niversity Mainz, D-55099 Mainz, Becherweg 21, Germany a r t i c l e i n f o Article history: Received...combining the commodity (lines) shown by numbers plus lower caps with the host rocks or structure (columns)...“Gesellschaft für Metall-, Hütten- und Bergleute” in Germany (GDMB). These data have been reported in the final...fallen out of use, excluding uranium in modern-day Germany. Exploration does not place the main emphasis on...(“borax”) Tinzenite Tirodite Tischendorfite Tlapallite Todorokite Topaz Torbernite Tourmaline, rubellite, indigolite |  | | Book | | The bands at 3000 and 2485 cm−1 are shifted to lower wavenumbers (2440 and 1840 cm−1, respectively) in...metasomatic sanidine from Volkesfeld, Eifel Mts., Germany contains only traces of structurally bound hydrogen...are hypothetical mineral phases of the Earth’s lower mantle. Five types of OH groups in synthetic ilmenite-type...the narrow interval from 3330 to 3360 cm−1. At lower water concentrations (<0.4 wt%) the most abundant...structure), possibly plays an important role in the lower transition zone of the Earth’s mantle as a concentrator |  | | Book (edition) | | carnallite. sylvite and k.ieseritc; from Stassfurt. Germany. Abrazite. syn. of gismondine or of phillipsite...fPDF 18-873 ). (TL) Johanngcorgcnstadt. Saxony, Germany. Fomiula and unit cell by R.J. Davis, M.H. Hey...Min. 28. 536. (TI..) Johanngeorgenstadt. Saxony. Germany. Named for G . Agricola. Agrinierite. (K 2 .Ca...Trommsdorff ( 1 800) J. Phann. 8. 1 53. (TI..) Saxony. Germany. Nan1ed from CX)'EUOtoC 'without taste·. 19.6....330, c 26.60 A. Z=2 [ PDF 35-676). (TL) Mocult:i quarry, Ang:iston. South Australia. Named for A.R. Alderman |  | | Report (volume) | | diameter (Vogel and Urban 1997). Definition of the lower size limit for nanoparticles is fairly subjective...solubility of oxygen, lower solubility of iron, and faster oxidation kinetics due to the lower temperature and...Fourier transform of the image is inset on the lower right. Note that the particles are typically 2 to...g., oxygen, nitrate) oxidants, see Nealson and Stahl (1997). Iron and manganese-reducing microbes dissolve...of stress and strain, reconstruction must always lower the overall free energy of the system. For both |  | | Report (issue) | | Olivenite, 1.6-cm cluster, Majuba Hill Mine, Antelope district, Pershing County. N. Prenn collection. Photograph... Davis The Goodsprings (Yellow Pine) Mining District, Clark County John C. Kepper 91 References ...Nightingale district Quartz epimorph after Calcite Agardite Grossular, Buena Vista district Quartz (amethyst)...Orpiment inclusions Calcite, Getchell Mine Robinson district inclusions inclusions Realgar and Fluorite Rhodochrosite...and Gold Silver and Quartz Silver, Reese River district Smithsonite Sonoraite Callaghanite Malachite |  | | Journal (issue) | | California GERMAN l\ltil.LER, University of Heidelberg, Germany LLOYD C. PRAY, University of Wisconsin, Madison...and Environments of the Tribes Hill Formation (Lower Ordovician) of the :\'lohawk \ 'alley, ~ew York...and Paleosalinity in the Rheintalgraben (S\\' Germany). B y Dietrich Heling Devaluation of "Dedolomitization...Carbonate Sedimentation by T idal Channels in t he Lower Florida IZeys. By Yladimir Jindrich The Significance...and ?\ I odern Sedimentary Environments of the Lower Georgia Coastal Plain. By John R. Hails and John | | | Report (issue) | | te, r.6-cm cluster, Majuba Hill Mine, Antelope district, Pershing County. N. Prenn coJlection. Photograph...A. Vavis The Goodsprings (Yellow Pine) Mining District, Clark County John C. Kepper MINERAL CATALOG...Mountain Mine Grossular, Nightingale district Grossular, Buena Vista district Gypsun1 Heterogen ite He½•eltite...Magnesio-axinite Malachite Malachite and Azurite, Robinson district Malachite after Azurite, Mount Potosi Marcasite...Millerite Mi1netite Naumannite Ncvadaite, Gold Quarry Mine ()pal after wood Opal, faceted Orpin1ent, |  | | Book | | 1900. The Last Chance Mine dump can be seen in the lower right corner ot the photo, near the bottom of the...Garrett 27 Figure 31. Jack Fuss 59 Figure 10. Lower Bat Tower and hopper 29 Figure 32. Louis Boucher...Figure 16. Aerial view of the Nelson limestone quarry 34 Figure 38. Rowe Well and camp around 1900...Mining District Lost Basin Mining District Music Mountain Mining District Centennial Mining District Mount...Trumbull Mining District Pine Springs Mining District Havasu Canyon Mining District Hacks Canyon Mining |  | | Journal (article/letter/editorial) | | in sulfate surface complex type on goethite is lower (pH ≈5) (Peak et al., 1999; Ostergren et al., 2000b;...considerations indicate that adions should adsorb at lower activity onto more energetic sites, and onto less...difference between these two occurrences is that todorokite, which has a tunnel structure con sisting of...incorporation into the tunnel struc ture of todorokite, but would enhance their sorption onto hydrous...difference in surface structure should result in a lower reactivity to water of the hydrated (0001) sur |  | | Book | | including an absence of land plants and animals, and a lower atmospheric O2 content. The Earth is unique among...consistent with goethite precipitation at progressively lower levels as the water table dropped in response to...yielded ages in the range 4–6 Ma, while those from lower elevation (200–220 m) sites yielded ages in Regolith...and generally occurs in local, topographically lower settings in the landscape. 2. Pedogenic or vadose...similar to inland groundwater silcretes, but have a lower TiO2 content (Young 1985). They are often called |  | | Book | | making a profit. Initially incorporated in the District of Columbia, the Publishing Company was reincorporated...content of marine placers diminished during the lower Proterozoic, possibly signaling the increased solubility... . The main period of ore deposition within a district seems to represent a relatively short time span...and Davison, 1976), but platinum and paladium are lower, and ruthenium, iri¬ dium, and osmium are higher...had crystallized. Platinum is commonly somewhat lower in abundance than palladium in basal segrega¬ tions |  | | Report (volume) | | Schweizerbart'sche Verlagsbuchhandlung. Stuttgart, Germany. Archives Sci.- Archives des Sciences. Societe...Freunde der Mineralogie und Geologie. Republic of Germany. Auk- Auk. American Ornithologists' Union. Cornell...Mineralogical Association. Springer-Verlag. Berlin, Germany, and New York, N.Y. Copeia- Copeia. American Society...Geologische Wissenschaften. Akademie Verlag. Berlin, Germany. Diatomic Research Bull.- Diatomic Research Bulletin...Buchhandlung Ferd. Rau. Ohringen, Federal Republic of Germany. Elisha Mitchell Sci. Soc. Jour. - The Journal |
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