 | Morgan, Rachael, Orberger, Beate, Rosière, Carlos A., Wirth, Richard, Carvalho, Camila da Mota, Bellver-Baca, M. Teresa (2013) The origin of coexisting carbonates in banded iron formations: A micro-mineralogical study of the 2.4Ga Itabira Group, Brazil. Precambrian Research, 224. 491-511 doi:10.1016/j.precamres.2012.10.013 | Journal (article/letter/editorial) | | Geosciences, Section 3.3, Telegrafenberg, 14473-Potsdam, Germany b a r t i c l e i n f o Article history: Received...closely associated with carbonates, such as the siderite-rich BIF in the transition from carbonate platform...Late diagenetic cements of ferroan dolomite and siderite occur in coarse-grained siliciclastic sediments...Transvaal Supergroup (South Africa; Altermann and Siegfried, 1997). The ∼2.6–2.4 Ga CampbellrandMalmani carbonate...and 2A). Five samples are from the Aguas Claras Mine and consist of carbonate-rich itabirites (CI; X |  | | Journal (article/letter/editorial) | | Accepted: 17 February 2020 © Springer-Verlag GmbH Germany, part of Springer Nature 2020 Abstract The 1370...alkaline igneous units are less clear. The ankerite–siderite carbonatites and magnetite-biotite dykes are likely...high LREE and low HFSE contents. The ankerite–siderite carbonatites have mantle-like δ13C isotope values...minor group is rich in Fe and form ankerite and/or siderite carbonatites. These ferrocarbonatites are 13...the Lyons River Sills—(Fig. 3a, b); (2) ankerite–siderite carbonatites (Fig. 3c); (3) magnetite–biotite |  | | Journal (article/letter/editorial) | | Tübingen, Wilhelmstrasse 56, 72074 Tübingen, Germany 2 Department of Geosciences, The University of...Canada (Carignan et al., 1997) and the North German basin, Germany (Lüders et al., 2010). These are large-scale...veins from the Schwarzwald mining district in SW Germany. The Schwarzwald is a well-investigated area. Numerous...GEOLOGICAL SETTING The Schwarzwald (Fig. 1) in SW-Germany mainly consists of crystalline basement rocks,...Middle Triassic by the Rötton clay aquitard in the north. Middle Triassic (Muschelkalk) units, including |  | | Journal (article/letter/editorial) | | APPLIED GEOCHEMISTRY Late-stage anhydrite-gypsum-siderite-dolomite-calcite assemblages record the transition...system in the Schwarzwald mining district, SW Germany—Mathias Burisch, Benjamin F. Walter, Axel Gerdes...belt: Constraints on the tectonic evolution of the North China Craton—Ju-Quan Zhang, Sheng-Rong Li, M. Santosh...Permian epithermal gold system in the Tulasu basin in North Xinjiang, NW China: Constraints from in situ oxygen-sulfur... Elliott, F. Wall, A.R. Chakhmouradian, P.R. Siegfried, and E. Deady 38 Origin of Early Cretaceous A-type |  | | Report (issue) | | geophysical and geological exploration for oil in Germany 1951-1954_______ Berbezier, J. The equipment used...bodies______________________________-__Bull, C. Observations in north Greenland relating to theories of the properties...geophysical work underground in the search for siderite reins___________________ _ _ 168-122 Closs, Hans...pendulum apparatus and Worden gravity meters in North America, South Africa, Australia, New Zealand, and...polar region___________________ Wandering of the north magnetic pole____.__________________ Dietz, R. S |  | | Report (issue) | | district, 2, As radial clusters near Lippincott mine, Ubehebe McAllister (4) p. 52. SODA AMPHIBOLES...abundant yellowish epidote has been observed on the north side of Tiburon Pen- Marin County: 3, Watters... '58). Mendocino County: 1, A quarry 5.1 miles north of Longvale on U.S. 101 has furnished glaucophane...occur in glaucophane schist in a quarry 5.1 miles north of Longvale on Highway 101, associated with stilpnomelane...bakerite has been collected from the Stirling Borax mine, Tick Canyon, Pemberton (p.c. '58). This is an unusual |  | Elliott, H.A.L., Wall, F., Chakhmouradian, A.R., Siegfried, P.R., Dahlgren, S., Weatherley, S., Finch, A.A., Marks, M.A.W., Dowman, E., Deady, E. (2018) Fenites associated with carbonatite complexes: A review. Ore Geology Reviews, 93. 38-59 doi:10.1016/j.oregeorev.2017.12.003 | Journal (article/letter/editorial) | | Elliott, F. Wall, A.R. Chakhmouradian, P.R. Siegfried, S. Dahlgren, S. Weatherley, A.A. Finch, M.A.W... Elliott, F. Wall, A.R. Chakhmouradian, P.R. Siegfried, S. Dahlgren, S. Weatherley, A.A. Finch, M.A.W...Geowissenschaftern, Wilhelmstrasse 56, D-72074 Tübingen, Germany h Kingston University, Penrhyn Road, Kingston upon...1989) including 148 calcite, dolomite, ankerite, siderite and magnesite (Woolley and Kempe, 1989). The ...2015) and diatreme breccias 379 at Kaiserstuhl, Germany (Hornig-Kjarsgaard, 1998). 380 2.3. Sodic vs |  | Borg, G., Karner, K., Buxton, M., Armstrong, R., Merwe, S. W. v. d. (2003) Geology of the Skorpion Supergene Zinc Deposit, Southern Namibia. Economic Geology, 98 (4) 749-771 doi:10.2113/gsecongeo.98.4.749 | Journal (article/letter/editorial) | | Halle-Wittenberg, Domstrasse 5, D-06108 Halle, Germany MIKE BUXTON, Exploration and Acquisitions Division...within the siliciclastic host rocks on the west and north. The nonsulfide ore minerals comprise predominantly...approximately 40 km north of the Orange River and some 15 km north-northwest of the Rosh Pinah mine in the southernmost...deposits (Page and Watson, 1976; van Vuuren, 1986; Siegfried and Moore, 1990). The present paper summarizes...the Martin-Luther University Halle-Wittenberg, Germany. The general geology of the region and the regional |  | | Journal (article/letter/editorial) | | Data from Kathu come from both Alterman and Siegfried (1997) and core logs by the authors. Doornberg...with the predominantly peritidal facies in the north and east and deeper facies to the south and west...(1980; 1987); Sumner (1995; 1997a), Altermann and Siegfried (1997), and Schröder et al. (2006), supplemented...Quartzite Shale fenestrate microbialites Hematite, siderite, magnetite, greenalite, and chert Massive beds;...which suggests correlative environments to the north and east consisted of erosional provinces or areas |  | | Report (issue) | | Morning Glor Morning Star Mount Tolman Mountain Lion North San Poil Fraction Old Hickory Overlook Oversight...Heel Placer Lone Jade Mammoth Minnesota New Light North American Old Discovery Placer 228 . . . . . . ...Derkey, Nancy L. Joseph, and Raymond Lasmanis Each mine or occurrence (record) in the database is intended...Washington Minerals-Part II, Metallic Minerals". For a mine to be included in this data set, it should have...continuously updated as new information is received. If a mine in which you are interested has produced metal(s) |  | | Journal (issue) | | schoepite/meta-schoepite, schoonerite, schorl, scorzalite, siderite, sphalerite, spodumene (and kunzite), stewartite...schoepite/meta-schoepite, schoonerite, schorl, scorzalite, siderite, sphalerite, spodumene strunzite, tapiolite, triphylite...Ownership: Excalibur Mineral Corporation, 1000 North Division Street, Peekskill, NY 10566-1830. Publisher:...rhodochrosite, rockbridgeite, schoonerite, schorl, siderite, souzalite, sphalerite, spodumene, strunzite,...pyrite, quartz (and rose quartz crystals), schorl, siderite, sphalerite, spodumene, tapiolite, todorokite |  | Eroglu, Suemeyya, van Zuilen, Mark A., Taubald, Heinrich, Drost, Kerstin, Wille, Martin, Swanner, Elizabeth D., Beukes, Nicolas J., Schoenberg, Ronny (2017) Depth-dependent δ13C trends in platform and slope settings of the Campbellrand-Malmani carbonate platform and possible implications for Early Earth oxygenation. Precambrian Research, 302. 122-139 doi:10.1016/j.precamres.2017.09.018 | Journal (article/letter/editorial) | | of Tuebingen, Wilhelmstraße 56, 72074 Tübingen, Germany 2 Institut de Physique du Globe de Paris, 1 rue...Ocean Research, Wischhofstraße 1-3, 24148 Kiel, Germany Abstract The evolution of oxygenic photosynthesis...Archean shallow seawater of 10.25 µM based on siderite-calcite equilibrium calculations, which corresponds...provided by Eroglu et al. (2015) and Altermann and Siegfried (1997), respectively. Except for some carbonate...Secondaryly grown minerals such as garnet, pyroxene, siderite, and ankerite are abundant in the carbonates near |  | | Journal (article/letter/editorial) | | reducing, hydrothermal exhalation of Fe2 + promotes siderite deposition, for example, adjacent to banded iron...promotes carbonate deposition overall, because siderite is less soluble than calcite and dolomite. Organic...790950 2500 500 0.80 25 150 Altermann and Siegfried (1997); W. Altermann, 1997 2530 920 3000 449...449 0.65 23 1950 Altermann and Siegfried (1997); W. Altermann, 1997 26309 20 1600 648 0.90 45...al. (1999) 1800 9 150 10 88.1 5.7 Koolpin North Australia Matthai and Henley (1996) 1900 950 |  | | Journal (issue) | | atural H istory) Hydroboracite from the Thompson Mine, Death Valley... 21 James W. M inette David P. W...Tetrawickmanite, Tetragonal MnSn(OH)6 A New Mineral from North Carolina....................................24 John...postage paid at Bowie Md. 20715 The Stevenson Bennett Mine, New Mexico........................31 Janet Hammond...analcime xls. 1-1/2 x 2-1/2”. $35.00. 337. SIDERITE. Old Sterling Mine, 138. EMERALD (Beryl). Muso, Colom Antwerp...1-1/2 x 2-1/2”. $15.00. 463. EPIDOTE. Green Monster Mine. Prince of Wales Is., Alaska. One small bruise shows |  | Hurai, Vratislav, Blažeková, Michaela, Huraiová, Monika, Siegfried, Pete R., Slobodník, Marek, Konečný, Patrik (2021) Thermobarometric and geochronologic constraints on the emplacement of the Neoproterozoic Evate carbonatite during exhumation of the Monapo granulite complex, Mozambique. Lithos, 380. 105883pp. doi:10.1016/j.lithos.2020.105883 | Journal (article/letter/editorial) | | Michaela Blažeková, Monika Huraiová, Pete R. Siegfried, Marek Slobodník, Patrik Konečný PII: S0024-4937(20)30518-1...the world, and include the Evate carbonatite in north-eastern Mozambique (Fig. 1), which shows clear evidence...returned Neoproterozoic to Upper Ordovician ages (Siegfried, 1999; Hurai et al., ro 2017, 2018). The oldest...(Fig. 9c). re Carbonates (magnesite, calcite, siderite) have also been occasionally identified together...estimated for the Marrupa and Unango complexes to the north, although they are somewhat lower than those in |  | | Journal (article/letter/editorial) | | South Africa ABSTRACT Limitations on the life-of-mine of the sediment-hosted Rosh Pinah deposit urged...from detailed lithogeochemical traverses on the C Mine and Eastern Orefield, coupled with mineralogical...of a large (n > 400) multielement data set of the mine area, showed that the extent of wall rock alteration...production rate of 670,000 tons per annum, life of mine is considered less than ten years at present metal...prices. As a result, the urgency has developed on the mine to replace this dwindling resource with high-grade |  | Wigand, M., Carey, J.W., Schütt, H., Spangenberg, E., Erzinger, J. (2008) Geochemical effects of CO2 sequestration in sandstones under simulated in situ conditions of deep saline aquifers. Applied Geochemistry, 23 (9) 2735-2745 doi:10.1016/j.apgeochem.2008.06.006 | Journal (article/letter/editorial) | | GeoForschungsZentrum Potsdam, Telegrafenberg, 14473 Potsdam, Germany Los Alamos National Laboratory (C-CSE), Bikini...recovery from the Sleipner Vest gas field in the North Sea (Maldal and Tappel, 2004; Torp and Gale, 2004)...the saline aquifer compositions occurring in the North German basin (Seibt et al., 1997; Naumann, 2000)...model, the Fe was assigned to a small quantity of siderite (equivalent to 1% of the volume of dolomite)....earth carbonates dolomite, calcite, magnesite and siderite as well as the clay minerals. After the pressure |  | Giovannini, Arthur L., Mitchell, Roger H., Bastos Neto, Artur C., Moura, Candido A.V., Pereira, Vitor P., Porto, Claudio G. (2020) Mineralogy and geochemistry of the Morro dos Seis Lagos siderite carbonatite, Amazonas, Brazil. Lithos, 360. 105433 doi:10.1016/j.lithos.2020.105433 | Journal (article/letter/editorial) | | Mineralogy and geochemistry of the Morro dos Seis Lagos siderite carbonatite, Amazonas, Brazil Arthur L. Giovannini...February 2020 Keywords: Carbonatite evolution Siderite carbonatite Morro dos Seis Lagos Nb deposit Amazon...deposit (Amazonas, Brazil) is derived from a primary siderite carbonatite. The complex is the only example of...consists only of siderite carbonatite; silicate rocks are absent. Three types of siderite carbonatite are...brecciated and oxidized core siderite carbonatite consisting of up to 95 vol% siderite together with: hematite; |  | | Journal (article/letter/editorial) | | paraautochthonous part of the Pan-African Gariep Belt further north. Thus, the Vredendal Outlier can be regarded as...University of Würzburg, Am Hubland, D-97074 Würzburg, Germany. Tel.: +49 931 888 5420; fax: +49 931 888 4620...package that occurs between the Gariep Belt to the north and the Saldania Belt to the south (Fig. 1). While...(Fig. 5). The carbonate beds thin out towards the north, where a basement high probably existed throughout...is identical to that in the Gariep Belt further north where it has been explained by sinistral transpression |  | Ranta, E., Stockmann, G., Wagner, T., Fusswinkel, T., Sturkell, E., Tollefsen, E., Skelton, A. (2018) Fluid–rock reactions in the 1.3 Ga siderite carbonatite of the Grønnedal–Íka alkaline complex, Southwest Greenland. Contributions to Mineralogy and Petrology, 173 (10) doi:10.1007/s00410-018-1505-y | Journal (article/letter/editorial) | | ORIGINAL PAPER Fluid–rock reactions in the 1.3 Ga siderite carbonatite of the Grønnedal–Íka alkaline complex...Accepted: 28 August 2018 © Springer-Verlag GmbH Germany, part of Springer Nature 2018 Abstract Petrogenetic...LA–ICP–MS trace-element data for magnetite, calcite, siderite, and ankerite–dolomite–kutnohorite from the iron-rich...caused formation of magnetite through oxidation of siderite. Our results can be used for discrimination between...rocks are formed. Our data provide evidence that siderite-bearing ferrocarbonatites can form during late |  | Benaouda, Rachid, Kraemer, Dennis, Sitnikova, Maria, Goldmann, Simon, Freitag, Ralf, Bouali, Abdelhafid, Mouttaqi, Abdellah, El Haloui, Rachid, Essaadaoui, Mustapha, Bau, Michael (2020) Thorium-poor monazite and columbite-(Fe) mineralization in the Gleibat Lafhouda carbonatite and its associated iron-oxide-apatite deposit of the Ouled Dlim Massif, South Morocco. Gondwana Research, 77. 19-39 doi:10.1016/j.gr.2019.06.011 | Journal (article/letter/editorial) | | Hannover, Stilleweg 2 D-30655 lP b re Bremen, Germany Morocco ur National Office of Hydrocarbons and...oxides) and apatite. The presence of magnesite and siderite at depth is known from ur drill cores. Associated... PET; Mn Kα, rhodochrosite, 10 s, LIF; Fe Kα, siderite, 10 s, LIF; Sr Lα, celestine, 60 s, PET; Y Lα...magnesite (dark in BSE images) and to lesser extent siderite in addition to dolomite (Fig. 11A-B). In this...occurs as veinlets cross-cutting magnesite and siderite following perpendicular micro-cracks. This sample |  | Prokopyev, Ilya R., Doroshkevich, Anna G., Sergeev, Sergey A., Ernst, Richard E., Ponomarev, Jean D., Redina, Anna A., Chebotarev, Dmitry A., Nikolenko, Anna M., Dultsev, Vladislav F., Moroz, Tatyana N., Minakov, Alexey V. (2019) Petrography, mineralogy and SIMS U-Pb geochronology of 1.9–1.8 Ga carbonatites and associated alkaline rocks of the Central-Aldan magnesiocarbonatite province (South Yakutia, Russia) Mineralogy and Petrology, 113 (3) 329-352 doi:10.1007/s00710-019-00661-3 | Journal (article/letter/editorial) | | hydrothermal-metasomatic minerals are quartz, calcite and siderite aggregates with haematite, monazite-(Ce), xenotime-(Y)...zone extends approximately 400 km in length from north to south (Fig. 1). It is confined to the Hardagasky...the Timpton river (Fig. 4), approximately 30 km north-east of Neryungri town in Yakutia. The ore-body...carbonatite intrusion is elongated from south to north-west and is in contact with the metamorphic rocks...anhydrite, thorite, thorianite, xenotime-(Y), siderite, pyrite, chalcopyrite, galena and rutile-(Nb) |  | | Show/Event (guide) | | of the largest and finest mineral collections in North America housed in the SeamanMuseum. George is a...t i o n s on carrollite from the Kamoya South II mine, Democratic Republic of Congo byR. L. Mown 2:00...kulanite and phosphophyllite from the Palermo #1 mine, North Groton, New Hampshire bill. W Nizamoff R. W....Carrollite crystals f r o m the Kamoya South I I Mine, Katanga, DRC, have pronounced facial striations...over that design was created by Tommy Armstrong of North Carolina. W e hope to work with the community to |  | Gentzmann, Marie C., Schraut, Katharina, Vogel, Christian, Gäbler, Hans-Eike, Huthwelker, Thomas, Adam, Christian (2021) Investigation of scandium in bauxite residues of different origin. Applied Geochemistry, 126. 104898pp. doi:10.1016/j.apgeochem.2021.104898 | Journal (article/letter/editorial) | | Recovery, Unter den Eichen 87, 12205, Berlin, Germany b Freie Universität Berlin, Institut für Geologische...Wissenschaften, Malteserstr. 74–100, 12449, Berlin, Germany c Museum für Naturkunde Berlin, Leibnitz-Institut...Biodiversitätsforschung, Invalidenstrasse 43, 10115, Berlin, Germany d Bundesanstalt für Materialforschung und –prüfung...Technologies, Unter den Eichen 87, 12205, Berlin, Germany e Bundesanstalt für Geowissenschaften und Rohstoffe...Rohstoffe (BGR), Stillweg 2, 30655, Hannover, Germany f Paul Scherrer Institut, Swiss Light Source (SLS) |  | | Journal (issue) | | Börsen 236 Das Umschlagbild zeigt Adamin von der Mine Ojuela, Durango, Mexiko. Größe der Stufe 8 x 6 x...dem Boden. Literaturhinweise KAEVER, ÜEKENTORP, SIEGFRIED (1966): Fossilien Westfalens, Invertebraten des...des Jura. Münster. KAEVER, ÜEKENTORP, SIEGFRIED (1974): Fossilien Westfalens, Invertebraten der Kreide...Haken in die Tiefe Am nächsten Morgen fuhren wir zur Mine hinter dem Hügel. Sie erstreckt sich auf einer 213...J. P. und CASSEDANNE, J. 0. (1974): Note sur la mine d'emeraude de Camaiba. Bulletin Assoc. frans;ais |
|
