 | | Journal (article/letter/editorial) | | places and noted the occurrence of large lithic basalt blocks within the lake area (1928, p. 316). He...produced by several dispersed eruptive centers. MICHELS (1952) semiquantitatively studied the petrography...Tephra in the Meerboden area, just northwest of Mendig (Fig. 6), calling the deposits "Meerboden Tuff"...Bell Kruft Meerboden ,~, NiederOberI "--L_r'~.--" Mendig I.... Auf Schruf o ,-o I , 2.0 km , T / '...scoria cones. Numbers 1-92 are locations of pumice quarries referred to in the text. ences in the heavy mineral |  | | Book | | collectors and often used as decorative items. Basalt is the most abundant volcanic rock on Earthâs surface...rock, created when hot gases were trapped in the basalt lava as it a specimen. The minerals may have grown...solidify into an extrusive igneous rock such as basalt. Magma may also solidify very slowly beneath Earthâs...manganese oxide on limestone, Solnhofen, Bavaria, Germany * 11.5 x 24 x 0.5 om MINERALS: PRODUCTS OF A...Probably the most common magnetic mineral is magnetite, an iron oxide that owes its name to its characteristic |  | | Book | | of the Deutsches Bergbau-Museum in Bochum, West Germany, Professor J. C. Becker of the University of Copenhagen...USA, Fig. 93; German Mining Museum, Bochum, West Germany, Figs 19, 20, 42, 46, 52, 55, 56, 57, 81; Institute...USA Fig. 64; Museum of History, Cologne, West Germany, Fig. 69; Museo de Prehistoria, de la Excma, Valencia...Romisch-Germanisches Commission, Frankfurt, West Germany, (Germania), Figs 68, 98; Society of Antiquaries...Tundra in NW. Europe Forest pine in S. France and Germany Return to colder conditions Mesolithic â Holocene |  | | Journal (article/letter/editorial) | | Ladick Trucking and Excavating weathered granite quarry is located approximately 1 mile east of State Highway...BISMUTH, AND ASSOCIATED MINERALS FROM THE WATERLOO QUARRY, SOUTHERN WISCONSIN. T. W. Buchholz1, A. U. Falster2...Orleans, New Orleans, LA 70148. The Michels Materials Waterloo quarry exposes Baraboo Interval quartzites...Falster, and W. B. Simmons. 2002. The Waterloo quarry: A new locality for gahnite, manganocolumbite,...spatially associated metasomatized zones, Michels Materials quarry, Waterloo, WI. Proceedings and abstracts |  | | Journal (article/letter/editorial) | | deposits form by efficient flotation of magmatic magnetite suspensionsâJaayke L. Knipping, Laura D. Bilenker...and high sample density geochemical mapping in GermanyâManfred Birke, Uwe Rauch, and Jens Stummeyer 105...Taylor, and William G. Minarik Did the massive magnetite âlava flowsâ of El Laco (Chile) form by magmatic...hydrothermal processes? New constraints from magnetite composition by LA-ICP-MSâSarah A.S. Dare, Sarah-Jane...unroofing of the Pleystein pegmatite-aplite system (SE Germany)âHarald G. Dill, Reiner Dohrmann, Stephan Kaufhold |  | | Journal (article/letter/editorial) | | species stoichiometries were considered, including magnetite (FeO1.33) stoichiometry, the combination Fe-FeOFeO1...Additional constraints have been added based on magnetite saturation experiments (Darken and Gurry 1946;...non-stoichiometry in magnetite is considerably smaller on the Fe-rich side of magnetite stoichiometry than...analogous to the role the Ni + NiO or fayalite + magnetite + quartz assemblages play as coordinates of oxygen...range of temperatures. The pyrite-pyrrhotite-magnetite assemblage has been widely used as a sulfur fugacity |  | ĆrodoĆ, Jan, Kuzmenkova, Oksana, Stanek, Jan J., Petit, Sabine, Beaufort, Daniel, Albert Gilg, H., LiivamĂ€gi, Sirle, Goryl, Magdalena, Marynowski, Leszek, Szczerba, Marek (2019) Hydrothermal alteration of the Ediacaran Volyn-Brest volcanics on the western margin of the East European Craton. Precambrian Research, 325. 217-235 doi:10.1016/j.precamres.2019.02.015 | Journal (article/letter/editorial) | | Geology, Technical University of Munich, Munich, Germany of Silesia, Faculty of Earth Sciences, Sosnowiec...cooling basalt, and the Caledonian and/or Variscan potassic alteration. The degree of basalt alteration...of clays), and proceeded from the edges of the basalt flows in an oxidizing environment, evidenced by...quartz as the earliest petrographically identifiable basalt alteration product was found to vary systematically...Mg enrichment are indicative of the hydrothermal basalt alteration process, which perhaps was dominant |  | Yang, Dong-Guang, Wu, Jian-Hua, Nie, Feng-Jun, Bonnetti, Christophe, Xia, Fei, Yan, Zhao-Bin, Cai, Jian-Fang, Wang, Chang-Dong, Wang, Hai-Tao (2020) Petrogenetic Constraints of Early Cenozoic Mafic Rocks in the Southwest Songliao Basin, NE China: Implications for the Genesis of Sandstone-Hosted Qianjiadian Uranium Deposits. Minerals, 10 (11) 1014 doi:10.3390/min10111014 | Journal (article/letter/editorial) | | %) and magnetite (3â5 vol.%). vol.%), and small amounts of olivine (5â8 vol.%) and magnetite (3â5 vol...olivine; Pl = plagioclase; plagioclase; Mt = magnetite. Mt = magnetite. AnalyticalMethods Methods 3. 3.Analytical...anomalies, which are similar to oceanic island basalt 8b), (OIB) (Figurethe 8b),TB positive anomalies...anomalies, which are similar to oceanic island basalt (OIB) (Figure whereas whereas the TB lower samples display...enriched mid-oceanic mid-oceanic ridge basalt (E-MORB). ridge basalt (E-MORB). Minerals 2020, 10, 1014 |  | | Journal (article/letter/editorial) | | SCIENCE Vol. 128, No. 3, 2019 Vol. 522, 2019 Magnetite chemistry and implications for the magmatic-hydrothermal...hydrothermal vein-type deposit: The Clara mine, SW Germany, as a type exampleâGregor Markl, Maximilian F.... Brazil, based on geochemistry and LA-ICP-MS magnetite analysesâ Joanna Chaves S. AraĂșjo and Lydia M...Raymond Michels, Marc Brouand, Olivier Parize, and Michel Cathelineau article 310 Silician magnetite: Si...Si-Fe-nanoprecipitates and other mineral inclusions in magnetite from the Olympic Dam deposit, South AustraliaâCristiana |  | | Conference Proceedings (Volume) | | the Yubileynoye VMS deposit at the Early Devonian basalt-boninite basement of west Magnitogorsk Arc, the...Bonnetti, Michel Cuney, Fabrice Malartre, Raymond Michels, Sylvain Bourlange, Xiaodong Liu, Yunbiao Peng...(Sweden) AndreĂŻ Lecomte, Michel Cathelineau, Raymond Michels & Marc Brouand The mantle-crustal ore-forming...Li-Sn-W-Rb-Cs deposit Zinnwald, eastern Erzgebirge, Germany . . ...................... 1734 ..............Voytekhovsky Y. Genesis of pencil clay deposits in Germany H. Albert Gilg & Martin Schwangler Diversity of |  | Andrews, John T., Hardadottir, Jorunn, Stoner, Joseph S., Mann, Michael E., Kristjansdottir, Greta B., Koc, Nalan (2003) Decadal to millennial-scale periodicities in North Iceland shelf sediments over the last 12â000 cal yr: long-term North Atlantic oceanographic variability and solar forcing. Earth and Planetary Science Letters, 210 (3) 453-465 doi:10.1016/s0012-821x(03)00139-0 | Journal (article/letter/editorial) | | coercivity spectra of the assemblage which for a magnetite-dominated mineralogy is mostly determined by magnetic...concentrations of magnetic minerals and with magnetite (sensus lato) being the dominant mineralogy. The...coercivity spectra of the assemblage which for a magnetite-dominated mineralogy is mostly determined by magnetic...sequence. Higher values, therefore, reÂŁect a coarser magnetite assemblage and lower values a Âąner assemblage...Hydrographic Changes in the Waters Between Iceland and Jan Mayen in the Last Decade, Jokull 19 (Symposium on Drift |  | | Journal (article/letter/editorial) | | 133 GONDWANA RESEARCH Early Palaeozoic high-Mg basalt-andesite suite in the Duobaoshan porphyry Cu deposit...mineralization at the HĂ€mmerlein deposit (Erzgebirge, Germany)âMarius Kern, Julian KĂ€stner, Raimon Tolosana-Delgado...Gao Silician magnetite: Si-Fe-nanoprecipitates and other mineral inclusions in magnetite from the Olympic...Zoovch Ovoo, MongoliaâDimitrios Rallakis, Raymond Michels, Marc Brouand, Olivier Parize, and Michel Cathelineau...973 In situ major and trace element analysis of magnetite from carbonatiterelated complexes: Implications |  | | Journal (article/letter/editorial) | | inaccessible or out worked since long from many quarries and mines reflected is pseudomorphs in interest...232-233. Partial fusion of granodioriteby intrusive basalt, OwensValley, California. Amer. J. Sci. (5thser...two years. The first year he spent in Dahlem, Germany, with the group at Herzog's Institute headed by...episode as follows: "Most of the Professorsin Germany valued their dignity very highly and to have disagreedwith...in parallel with the wider interests of Walter Michels in the solid state." In 1935he married Elizabeth |  | | Journal (article/letter/editorial) | | protoliths such as oxidized pelite or altered marine basalt, are not enriched in U. To explore the reason of...pelite, more oxidized pelite, and altered oceanic basalt. Special focuses were paid on (i) the fluid mobility...from the Damara Orogen [15], and an altered marine basalt from Pito Deep [16]. Table 1. Bulk compositions...Al2 O3 MgO FeO Fe2 O3 CaO Na2 O Altered Oceanic Basalt Average Pelite Oxidized Pelite 51.98 14.80 7...bufferedby byaltered alteredoceanic oceanicbasalt. basalt.(a) (a)P-T P-T pseudosection showing mineral assemblage |  | | Journal (issue) | | Lieber Heidelberg, W. Germany Olaf Medenbach Ruhr Universitat Bochum Bochum, W. Germany Eric Offermann Arlesheim...them received training abroad, particularly in Germany where formal crys tallography, chemical crystallography...Polytechnique in Paris; Leonhard Sohncke of Karlsruhe, Germany, discussed crystal structure two score years before...systematic exploration, and opened the Antandrokomby quarries and mines in the Sahatany Valley where superb...Julius Petch organization of Idar-Oberstein, West Germany. Petch operated the mine for a num ber of years |  | | Journal (article/letter/editorial) | | nugget I. The in Pacific ferromanpanesc of basalt and relative at Belbex, France mobilities of...phonolitic lavas from Nigerta, Australia, East Germany and New Zealand F. F. WEBER, JR and W. M. SACKETT...gneisses---I. A study from the Schwarzwald, West Germany H. MOSI:SCHUNG, W. BRANI)and PATRICKL. GRIZZLE...systems: Interaction of seawater with fayalite and magnetite at 200-350°C 1997 Distribution coefficients of...BENO~TVILLEMANT, fractional crystallization in the alkali basalt series ot HENRI JAFFREZIC,JEAN-LOUISJORON Chaine |  | Li, Jinhua, Bernard, Sylvain, Benzerara, Karim, Beyssac, Olivier, Allard, Thierry, Cosmidis, Julie, Moussou, Julien (2014) Impact of biomineralization on the preservation of microorganisms during fossilization: An experimental perspective. Earth and Planetary Science Letters, 400. 113-122 doi:10.1016/j.epsl.2014.05.031 | Journal (article/letter/editorial) | | the Posidonia Shale (Lower Toarcian, northern Germany). Mar. Pet. Geol. 31, 70â89. Beyssac, O., Lazzeri...Biomol. Spectrosc. 60, 1349â1357. Gupta, N.S., Michels, R., Briggs, D.E.G., Evershed, R.P., Pancost, R...crystallography and magnetic properties of bullet-shaped magnetite magnetosomes in giant rod magnetotactic bacteria...Experimental low-grade alteration of biogenic magnetite indicates microbial involvement in generation...1817â1830. Stankiewicz, B.A., Briggs, D.E.G., Michels, R., Collinson, M.E., Flannery, M.B., Evershed |  | Larsen, Rune B., Grant, Thomas, SĂžrensen, BjĂžrn E., Tegner, Christian, McEnroe, Suzanne, Pastore, Zeudia, Fichler, Christine, Nikolaisen, Even, Grannes, Kim R., Church, Nathan, ter Maat, Geertje W., Michels, Alexander (2018) Portrait of a giant deep-seated magmatic conduit system: The Seiland Igneous Province. Lithos, 296. 600-622 doi:10.1016/j.lithos.2017.11.013 | Journal (article/letter/editorial) | | Nikolaisen, Kim R. Grannes, Nathan Church, Alexander Michels, Geertje W. ter Maat PII: DOI: Reference: S0024-4937(17)30396-1...Nikolaisen, Kim R. Grannes, Nathan Church, Alexander Michels, Geertje W. ter Maat , Portrait of a Giant Deep-Seated...velocities in the lower crust SC RI PT beneath flood basalt provinces (Farnetani et al., 1996; Ridley and Richards...the Hasvik Layered MA Intrusion is a tholeiitic basalt with c. 8 wt% MgO (Robins and Takla, 1979; Gardner...suggesting the parent magma was an alkaline olivine basalt (Robins and Gardner, 1974). The most-studied alkaline |  | Konecke, Brian A., Fiege, Adrian, Simon, Adam C., Linsler, Stefan, Holtz, Francois (2019) An experimental calibration of a sulfur-in-apatite oxybarometer for mafic systems. Geochimica et Cosmochimica Acta, 265. 242-258 doi:10.1016/j.gca.2019.08.044 | Journal (article/letter/editorial) | | Hannover, CallinstraĂe. 3, D-30167, Hannover, Germany. *New address: ARES, NASA Johnson Space Center...+0.3, +1.2, and +3 where FMQ is the fayalite-magnetite-quartz mineral redox buffer) to explore the partitioning...reduced ocean island basalts (OIB), and backarc basin basalt (BABB). Owing to the ubiquity of apatite in magmatic...compositions of co-existing ilmenite and titano-magnetite have proven to be a powerful oxybarometer to determine...therein). However, ilmenite is not always present in magnetite-bearing igneous and metamorphic rocks (Frost and |  | | Journal (issue) | | Lieber Heidelberg, W. Germany Olaf Medenbach Ruhr Universitat Bochum Bochum, W. Germany Eric Offermann Ariesheim...Schlosstrasse 6 D-8050 Haindlfing-Freising West Germany yhe Mineralogical Museum at Marburg is housed...university town of Marburg is situated in central Germany ipproximately 90 km north of Frankfurt. The museum...cm, from Grube Friedrichssegen, Bad Ems, West Germany. Photo by Rainer Bode. Figure 4. The former granary...Livorno, Italy F W twothousand years, the marble quarries near Carrara have yielded superb white marble |  | | Journal (article/letter/editorial) | | Geowissenschaften und Rohstoffe, Stilleweg 2, 30655 Hannover, Germany Received 12 October 2000; accepted 9 October 2001...sediment remains on the shelf (Kuehl et al., 1997; Michels et al., 1998). The dynamics of the distribution...beach barriers in the area (Wiedicke et al., 1999; Michels et al., 1998) was well mapped and avoided by sampling...trace minerals were observed: opaques (ilmenite, magnetite), OPX, CPX, zircon, tourmaline, apatite, rutile...Programm TRIO + . Z. Angew. Geol. 43 (2), 118 â 123. Michels, K.H., Kudrass, H.R., HuÌbscher, C., Suckow, A |  | Bonnetti, Christophe, Zhou, Lingli, Riegler, Thomas, Brugger, JoĂ«l, Fairclough, Martin (2020) Large S isotope and trace element fractionations in pyrite of uranium roll front systems result from internally-driven biogeochemical cycle. Geochimica et Cosmochimica Acta, 282. 113-132 doi:10.1016/j.gca.2020.05.019 | Journal (article/letter/editorial) | | quadrupole ICP-MS (Thermo Scientific, Bremen, Germany). The ICP-MS operated with a plasma power between... 297-315. Bonnetti C., Cuney M., Malartre F., Michels R. and Liu X. (2015a) The Uranium Metallogenic...Nancy, France. Bonnetti C., Cuney M., Malartre F., Michels R., Liu X. and Peng Y. (2015b) The Nuheting deposit...Geol. Rev. 69, 118-139. Bonnetti C., Cuney M., Michels R., Truche L., Malartre F., Liu X. and Yang J....1059-1081. Bonnetti C., Liu X., Zhaobin Y., Cuney M., Michels R., Malartre F., Mercadier J. and Cai J. (2017b) |  | | Journal (article/letter/editorial) | | Accepted: 4 October 2019 © Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract Ultramafic...xenocrysts from a basanite from Spitzberg, Cotta, Germany were investigated. The Spitzberg volcano on the...Sekr. BH 9â3, ErnstâReuterâPlatz 1, 10587 Berlin, Germany 2 Present Address: Arbeitsbereich MineralogieâPetrologie...UniversitĂ€t Berlin, Malteserstr. 74â100, 12249 Berlin, Germany 3 Fachbereich Geowissenschaften, UniversitĂ€t... Postfach 330440, 28334 Bremen, Germany Rocks of the alkali basalt fractionation series are common worldwide |  | | Journal (article/letter/editorial) | | metamorphic rock (migmatite) from a working rock quarry named ââAzhikkodeââ near Thiruvananthapuram, Kerala...central KKB region. Garnetâbiotite gneiss at the quarry has undergone a high degree of partial melting...(2010) Crystal orientation effects in d18O for magnetite and hematite by SIMS. Chem Geol 276:269â283 Jaszczak...(1997) Unusual graphite crystals from the Lime Crest quarry, Sparta, New Jersey. Rocks and Minerals 72:330â334...fractionation by chemical diffusion between molten basalt and rhyolite. Geochim Cosmochim Acta 67:3905â3923 |  | | Journal (article/letter/editorial) | | Organic Geochemistry, Telegrafenberg 14473 Potsdam, Germany d Surface & Aqueous Geochemistry Group, Department...(Cai and Hua, 2007) and the HunsruÌck schists (Germany) (e.g., Briggs et al., 1996; Raiswell et al., 2008)...planes of pyrrhotite. Iron oxides are identiïŹed as magnetite or maghemite: distances at 3.8, 2.8, 2.6, 2.3...3 1), (2 0 3), and (1 3 3) lattice planes of magnetite/maghemite (e.g., Tokonami et al., 1972; Downs...Comparison with reference spectra of maghemite and magnetite suggests that Fe-oxide nanocrystals are maghemites |
|
