 | | Book | | collectors and often used as decorative items. Basalt is the most abundant volcanic rock on Earth’s 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 Earth’s...manganese oxide on limestone, Solnhofen, Bavaria, Germany * 11.5 x 24 x 0.5 om MINERALS: PRODUCTS OF A... Europe: Cornwall, England; Rheinland-Pfalz, Germany. Asia: Yekaterinburg (Sverdlovsk), Ural Mountains |  | | Journal (article/letter/editorial) | | Mst: magnesite,Pe: periclase,BQz: P-quat1(z, Fo: forsterite,Di : diopside,Mo: monticellite,An: anorthite...et al. (1963a) vukalovich er al. (1963b) Michels and Michels (1935) v v v v v v v n n n 400-700 100-400...HrO-CO, fluid mixture (e.g.,magnesite + talc + forsterite * HrO + CO2,Greenwood, 1967). Any suchdiscrepancyhas...Abbreviationsof minerals:Cs : coesite,Mst : Fo : forsterite,ps : periclase, En : orthoenstatite, magnesite...the equilibriurn: Clinochlore + 2 magnesite : 3 forsterite * spinel * 2 CO, + 4 HrO and revised thermodynamic |  | | Journal (article/letter/editorial) | | weightpercent using the following densities (in g cm 3): forsterite (3.23), enstatite (3.209), glassy mesostasis...parent-body alteration, the chondrule consisted of forsterite (58 vol%; 44 wt%), enstatite (2 vol%; 2 wt%)...Mafic silicates in chondrule K7p include major forsterite and rare enstatite and Ca-pyroxene. All Four-layered...Fa mol% Fs mol% Wo 1 Forsterite 7 2 Forsterite 12 3 Forsterite 17 4 Forsterite 6 Mean SD Mean SD...wt%) 76% forsterite, 2% enstatite, and 21% anorthite. This would plot deep within the forsterite field of |  | | Journal (article/letter/editorial) | | CI~ARLESV. CLEMENCY 571 ERWIN 577 Su~ss of forsterite-fayalite chronologies olivine solutions for... 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...BENO~TVILLEMANT, fractional crystallization in the alkali basalt series ot HENRI JAFFREZIC,JEAN-LOUISJORON Chaine |  | | Journal (issue) | | Lieber Heidelberg, W. Germany Olaf Medenbach Ruhr Universitat Bochum Bochum, W. Germany Eric Offermann Arlesheim...307 by ]. P. Cassedanne Mineralogy of the Kalkar quarry, Santa Cruz, California..........................Ulrich Burchard (Haindlfing, D-8051 Freising, West Germany), for 78 DM plus 5 DM postage on European orders...Minerals Mineral & Needle Craft Creations, Inc. Quarry Enterprises Wallingford, CT Oceanside, NY John... Curt Walenta of the University of Stuttgart, Germany. It oc curs as bright yellow to pale brown crystals |  | Quirico, E., Montagnac, G., Rouzaud, J.-N., Bonal, L., Bourot-Denise, M., Duber, S., Reynard, B. (2009) Precursor and metamorphic condition effects on Raman spectra of poorly ordered carbonaceous matter in chondrites and coals. Earth and Planetary Science Letters, 287 (1) 185-193 doi:10.1016/j.epsl.2009.07.041 | Journal (article/letter/editorial) | | the aromatization process of the solid residue (Michels et al., 1994), and on hydrogen and oxygen expulsion...processes are different in chondrites and coals (Michels et al., 1994). In contrast, our data do not support...Strazzulla, G., Baratta, G., Colangeli, L., 2004. Forsterite amorphisation by ion irradiation: monitoring...clue for uranium ore genesis. Uranium 3, 307–342. Michels, R., Landais, P., Philp, R., Torkelson, B., 1994 |  | Larsen, Rune B., Grant, Thomas, Sørensen, Bjørn 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 |  | | Journal (article/letter/editorial) | | and = andalusite, cpx = clinopyroxene, fo = forsterite, sil = sillimanite, gt = garnet, parg = pargasite...in the Hoher-Bogen shear zone (Bohemian Massif, Germany). International Journal of Earth Sciences 88, 803-813...1977. Relationship of order of crystallization of basalt melts to AC their classification and to definition...Medaris, L.G., Jr., Ackerman, L., Jelínek, E., Michels, Z.D., Erban, V., Kotková, J., 2015. Depletion... E.F., Tait, D.B., 1952. The system diopside forsterite anorthite. American Journal of MA Science 250 |  | Pratesi, Giovanni, Caporali, Stefano, Greenwood, Richard C., Moggi Cecchi, Vanni, Franchi, Ian A. (2019) A detailed mineralogical, petrographic, and geochemical study of the highly reduced chondrite, Acfer 370. Meteoritics & Planetary Science, 54 (12) 2996-3017 doi:10.1111/maps.13409 | Journal (article/letter/editorial) | | represent a homogeneous grouplet of strongly reduced forsterite-rich chondrites characterized by common textural...that they originated from the collision of a forsterite-rich chondritic impactor into the aubrite parent...interstitial mesostasis containing the most of metal. c) Forsterite (dark gray) chondrule fragment along with enstatite...glass. h) Euhedral and subeuhedral crystals of forsterite (dark gray) and Al-diopside (light gray) in a...chondrule characterized by large homogeneous forsterite crystals (black) and low-Ca pyroxene zoned crystals |  | Sobolev, Nikolay V., Logvinova, Alla M., Tomilenko, Anatoly A., Wirth, Richard, Bul'bak, Taras A., Luk'yanova, Lyudmila I., Fedorova, Ekaterina N., Reutsky, Vadim N., Efimova, Emiliya S. (2019) Mineral and fluid inclusions in diamonds from the Urals placers, Russia: Evidence for solid molecular N2 and hydrocarbons in fluid inclusions. Geochimica et Cosmochimica Acta, 266. 197-219 doi:10.1016/j.gca.2019.08.028 | Journal (article/letter/editorial) | | Surface Geochemistry, Telegrafenberg, 14473 Potsdam, Germany d Karpinsky All-Russian Research Geological Institute...TiO2, CaO, and Cr2O3 impurities depending on forsterite (Fo) contents in olivines from diamonds of the...These impurities and their relationship with forsterite content are typical not only of the studied kimberlite...(Schiferl et al., 1985; Schneider et al., 1992; Michels et al., 1995; Chen et al., 1997). This is also...(Schiferl et al., 1985; Schneider et al., 1992; Michels et al., 1995; Chen et al., 1997), residual pressure |  | | Journal (article/letter/editorial) | | sample, and show no internal zoning. Olivine forsterite content varies from 088 to 093 across the massif...above 025 wt % (Table 2). Figure 6 shows the forsterite content in olivine relative to the average spinel...of Arai (1994). Several samples have olivine forsterite contents lower (more Fe-rich) than is typical...field melting model Fig. 6. Cr# in spinel vs forsterite content in olivine. Also plotted are samples...for mid-ocean ridge basalt (MORB), island arc tholeiite (IAT), calc-alkaline basalt (CAB), and boninite |  | Borghini, Alessia, Ferrero, Silvio, O’Brien, Patrick J., Laurent, Oscar, Günter, Christina, Ziemann, Martin A. (2020) Cryptic metasomatic agent measured in situ in Variscan mantle rocks: Melt inclusions in garnet of eclogite, Granulitgebirge, Germany. Journal of Metamorphic Geology, 38 (3) 207-234 doi:10.1111/jmg.12519 | Journal (article/letter/editorial) | | inclusions in garnet of eclogite, Granulitgebirge, Germany. Running title: Metasomatic melt in eclogite garnet...Geowissenschaften, Universität Potsdam, 14476 Potsdam, Germany 1 Museum für Naturkunde (MfN), Leibniz-Institut...und Biodiversitätsforschung, 2 10115 Berlin, Germany Eidgenössiche Technische Hochschule, ETH, 8092...studied eclogites is similar to that of Fe-rich basalt and the enrichment in LILE and U suggest a subduction-related...high grade crystalline rocks extend into parts of Germany, the Czech Republic, Poland and Austria (O’Brien |  | | 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 9‑3, Ernst‑Reuter‑Platz 1, 10587 Berlin, Germany 2 Present Address: Arbeitsbereich Mineralogie‑Petrologie...Universität Berlin, Malteserstr. 74‑100, 12249 Berlin, Germany 3 Fachbereich Geowissenschaften, Universität... Postfach 330440, 28334 Bremen, Germany Rocks of the alkali basalt fractionation series are common worldwide |  | | Journal (issue) | | Lieber Heidelberg, W. Germany Olaf Medenbach Ruhr Universitat Bochum Bochum, W. Germany Eric Offermann Arlesheim..................100 by W. E. Wilson Notes from Germany .................................................9-ll:15/Noon-5:30 (Closed Sun.) (602) 294-0143 Michels Minerals Harold & Wilma Michel 1030 W. Tenth Street...brewsterite, edingtonite. Laytonville quarry [also known as Shamrock Ranch quarry]—5 miles south of Laytonville...quartz. Crestmore quarry [includes Commercial, Wet W eather, Lone Star, and Chino quarries]—Sky Blue Hill |  | | 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...prolectite, chondrodite, humite, clinohumite, forsterite. Twenty years later, Per Geijer of Sweden announced...systematic exploration, and opened the Antandrokomby quarries and mines in the Sahatany Valley where superb |  | Mavromatis, Vasileios, Immenhauser, Adrian, Buhl, Dieter, Purgstaller, Bettina, Baldermann, Andre, Dietzel, Martin (2017) Effect of organic ligands on Mg partitioning and Mg isotope fractionation during low-temperature precipitation of calcite in the absence of growth rate effects. Geochimica et Cosmochimica Acta, 207. 139-153 doi:10.1016/j.gca.2017.03.020 | Journal (article/letter/editorial) | | Geology, Universitätsstraße 150, D-44801 Bochum, Germany *Corresponding author: mavromatis@tugraz.at 1...the facilities of the Ruhr University Bochum, Germany. The sample Mg concentration was kept within ±15%... Faure, P., Laggoun Defarge, F., Leveque, J., Michels, R., Olivier, J.E., 2011. Occurrence of fossil... 2015. The efficient long-term inhibition of forsterite dissolution by common soil bacteria and fungi...fluid aquifers, Schwarzwald mining district, SW Germany. Chem. Geol. 400, 87-105. Welch, S. A., and Ullman |  | | Journal (article/letter/editorial) | | Accepted: 9 November 2018 © Springer-Verlag GmbH Germany, part of Springer Nature 2018 Abstract Multiphase...(2018) 173:106 Olivine composition corresponds to forsterite (X Mg = 0.90–0.92), orthopyroxene is enstatite...some Quaternary alkali mafic lavas, West Eifel, Germany. Eur J Mineral 4:321–330 Faryad SW, Jedlička R...2004.12.004 Medaris G, Ackerman L, Jelínek E, Michels Z, Erban V, Kotková J (2015) Depletion, cryptic...Eclogite-facies rocks in the Saxonian Erzgebirge, Germany: high pressure metamorphism under contrasting P–T |  | | 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) Andreï 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 |  | | Book (edition) | | Canada; Mexico; Bolivia; Czechoslovakia; Norway; Germany; Tsumeb; Namibia; Chaiiarcillo, Chile; and Broken...occurrences are found in Chile, Italy, France, Germany, Turkey, and Algeria. SELECTED REFERENCES: Palache...also found at Johanngeorgenstadt, Saxony, East Germany. SELECTED REFERENCE: Davis, R. J., Hey, M. H ....the floor of the 910 foot level of the Commercial Quarry, Crestn1ore, California, associated with quartz...Ireland; and in the Laacher See District, West Germany. SELECTED REFERENCE: Switzer, G., and Bailey, E |  | | Journal (article/letter/editorial) | | zu KOln, Otto-Fischer Str. 12-14, 50674 KBln, Germany (Ulrich.Herpers@uni-koeln.de). Introduction: Over...M. Fullerz, ]Institute for Geophysics, Munich, Germany, >HIGP-SOEST, University of Hawaii, Honolulu, Hawaii...6 wt%) are presented in this relict forsterite. Some forsterite grains are enriched in A1203 (1 2 wt%)...Ackermandz, IBML, Lehmweg 53, D-38518 Gifliorn, Germany (Bartoschewitz.Meteorite-Lab@-online.de), 2lnst...Geowissenschaften der Univ., Olshausenstr. 40, D-24098 Kiel, Germany. Tridymite in iron meteorites are known from IVA |  | | Journal (article/letter/editorial) | | ッ トの 垂 線 成 長(お よ び 溶 解)速 度,斜 よ うに 変 る か を 示 すMichels○n干 面 の 傾 斜 角,ス し た｡ テ ップ の 前 進 速 度 と対 応 させ る...temperatures and its appli- cation to the system forsterite-diopside-silica. MSc Thesis, Tohoku Univ. Abe...A. Tsuchiyama, (1986), kinetics Effect of of basalt, titioning. 438. Lofgren, dynamic Mineral. |  | | Journal (article/letter/editorial) | | 1978), in studying the partitioning of Ni between forsterite and melt in the same system, showed that the...are similar to the differences observed between basalt and rhyodacite. In order to attribute the changes...venture. Acknowledgements-We are indebted to H. Michels, H. R. Bowman, and F. Asaro of Lawrence Berkeley... and Ba, with applications to anorthosite and. basalt genesis. Geochim. Cosmochim. Acta 34, 307-322.... B. (1977) Partitioning of manganese between forsterite and silicate liquid. Geochim. Cosmochim. Acta |  | | Journal (article/letter/editorial) | | time or t0.5 (e.g. Liritzis and Laskaris, 2011; Michels et al., 1983). In other studies, bulk analytical...mineral specimens including a 251 synthetic forsterite, synthetic chloroapatite, nepheline, diopside...humidty and temperature. Am. Antiq. 56, 504–513. Michels J. W., Tsong I. S. T. and Nelson C. M. (1983) Obsidian |  | Ballouard, C., Poujol, M., Boulvais, P., Zeh, A. (2017) Crustal recycling and juvenile addition during lithospheric wrenching: The Pontivy-Rostrenen magmatic complex, Armorican Massif (France), Variscan belt. Gondwana Research, 49. 222-247 doi:10.1016/j.gr.2017.06.002 | Journal (article/letter/editorial) | | Geochemistry, Altenhöferallee 1, D-60438 Frankfurt, Germany Institute for Applied Geosciences – Karlsruhe...Petrology, Adenauerring 20b, 50.4, D-76131 Karlsruhe, Germany PT E Keywords: Peraluminous and metaluminous...area, the sampling was mostly limited to SC quarries. A total of 25 samples representative of the petrographic...orthoclase (K), corundum (Al), wollastonite (Ca), forsterite (Mg), MnTiO3 (Mn, Ti), andradite (Fe). 4.2. ...through massive amphibole fractionation from hydrous basalt. Terra Nova 23, 1–10. doi:10.1111/j.1365-3121.2010 |  | Gordon Medaris, L., Ackerman, Lukáš, Jelínek, Emil, Michels, Zachary D., Erban, Vojtěch, Kotková, Jana (2015) Depletion, cryptic metasomatism, and modal metasomatism (refertilization) of Variscan lithospheric mantle: Evidence from major elements, trace elements, and Sr-Nd-Os isotopes in a Saxothuringian garnet peridotite. Lithos, 226. 81-97 doi:10.1016/j.lithos.2014.10.007 | Journal (article/letter/editorial) | | Lukáš Ackerman b,c, Emil Jelínek d, Zachary D. Michels a, Vojtěch Erban c, Jana Kotková c,e a Department...lherzolite compared to harzburgite. Olivine is forsterite with mg-numbers of 90.2–90.6 in lherzolite and...metamorphic region of the Central Erzgebirge, Germany. Eur. J. Mineral. 13, 565–570. Massonne, H.-J....2000. Microdiamonds from the Saxonian Erzgebirge, Germany: in situ micro-Raman characterisation. Eur. J....Eclogite-facies rocks in the Saxonian Erzgebirge, Germany: high pressure metamorphism under contrasting P-T |
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