 | | Journal (article/letter/editorial) | | González-Jiménez b,c,d a Czech Geological Survey, Geologická 6, 152 00 Praha 5, Czech Republic ARC Centre of Excellence...between the Rhine area in the north and the Danube region to the south (Franke, 1989; Matte, 2001; Cháb et...Besides relics of oceanic crust in both the Železný Brod and Rýchory Complexes (protoliths of bimodal volcanogenic...discovered during exploration work carried out by the Czech Geological Survey in the period 1986–1988 (Žežulka...pyrope-rich garnet. Goethite, almandine, rutile, magnetite, tourmaline, monazite, cassiterite, zircon, apatite |  | Colás, Vanessa, Padrón-Navarta, José Alberto, González-Jiménez, José María, Griffin, William L., Fanlo, Isabel, O’reilly, Suzanne Y., Gervilla, Fernando, Proenza, Joaquín A., Pearson, Norman J., Escayola, Monica P. (2016) Compositional effects on the solubility of minor and trace elements in oxide spinel minerals: Insights from crystal-crystal partition coefficients in chromite exsolution. American Mineralogist, 101 (6) 1360-1372 doi:10.2138/am-2016-5611 | Journal (article/letter/editorial) | | the end-members of spinel (MgAl2O4; Spl) and magnetite (Fe2+Fe3+ 2 O4; Mag) that define the corners of...partition coefficient between the spinel-rich and magnetite-rich phases (DiSpl/Mag). Minor and trace elements...available for exsolutions of spinel-rich and magnetite-rich phases in other chromite from nature, despite...preferential partitioning of Ti and Sc into the magnetite-rich phase is consistent with hightemperature...elements in the chromite (which are enriched in the magnetite component). The most likely explanation is that |  | Haluzová, E., Ackerman, L., Pašava, J., Jonášová, Š., Svojtka, M., Hrstka, T., Veselovský, F. (2015) Geochronology and characteristics of Ni-Cu-(PGE) mineralization at Rožany, Lusatian Granitoid Complex, Czech Republic. Journal of GEOsciences, 60 (4) 219-236 | Journal (article/letter/editorial) | | mineralization at Rožany, Lusatian Granitoid Complex, Czech Republic Eva HALUZOVÁ1,2*, Lukáš ACKERMAN2,3, Jan PAŠAVA3...128 43 Prague 2, Czech Republic; haluzova@gli.cas.cz Institute of Geology, The Czech Academy of Sciences...Prague 6, Czech Republic 3 Czech Geological Survey, Geologická 6, 152 00 Prague 5, Czech Republic * Corresponding...Rožany are much lower than those reported from the Ransko Massif, but similar to those in the Svitavy ultramafic...Ni–Cu–(PGE) ores were identified at three localities – Staré Ransko (e.g., Pokorný 1969; Pašava et al. 2003), Rožany/Kunratice |  | Ahmed, Ahmed Hassan, Helmy, Hassan Mohamed, Arai, Shoji, Yoshikawa, Masako (2008) Magmatic unmixing in spinel from late Precambrian concentrically-zoned mafic–ultramafic intrusions, Eastern Desert, Egypt. Lithos, 104 (1) 85-98 doi:10.1016/j.lithos.2007.11.009 | Journal (article/letter/editorial) | | trivalent ion; Spinel series (Al +3 -dominant), Magnetite series (Fe +3 -rich) and Chromite series (Cr+3-rich)...600 °C for unmixed spinels from the Red Lodge district (Loferski and Lipin, 1983). the overall compositional...a way analogous to ulvöspinel exsolution from magnetite. The solvus lines of Sack and Ghiroso (1991)....Ni–Cu sulfide deposit, Gansu Province, People's Republic of China. Economic Geology 94, 343–356. Buddington...Plate Tectonics and Metallogenesis in the Red Sea region. Geological Association of Canada Special Paper |  | Tian, W., Chen, B., Ireland, T.R., Green, D.H., Suzuki, K., Chu, Z. (2011) Petrology and geochemistry of dunites, chromitites and mineral inclusions from the Gaositai Alaskan-type complex, North China Craton: Implications for mantle source characteristics. Lithos, 127 (1) 165-175 doi:10.1016/j.lithos.2011.08.013 | Journal (article/letter/editorial) | | olivine clinopyroxenite, magnetite-bearing clinopyroxenite and magnetite-rich hornblendite, typical...zircon U–Pb age of a gabbroic dyke within the magnetite-rich hornblendite is 280 ± 3 Ma (MSWD = 1.6),...the Gaositai complex are characterized by high magnetite solid solution component (Table 2). The log fO2...units above the FMQ buffer (Table 2). The high magnetite solid solution and high fO2, along with the low...is suggested by the presence of a thin rim of magnetite around the euhedral chromite (Fig. 4), which is |  | | Journal (article/letter/editorial) | | miscibility gap (Al0Cr35Fe3+65) or forms pure magnetite, which can be sometimes observed Fig. 2. Correlation...gabbros (Table 3). Thus, most of the spinel has a magnetite-rich composition (Fig. 4d). In hornblendites (SB30...to group I. In Kytlym some of the spinels have magnetite-rich compositions. Like the accessory spinel in...clinopyroxene forming wehrlite, clinopyroxene + chromian magnetite forming clinopyroxenite and clinopyroxene + spinel...temperature. In addition, some of the Fe-rich spinel (magnetite) probably is an alteration product formed during |  | | Journal (article/letter/editorial) | | which consists of a rock rich in diopside and magnetite, is not considered by the present authors to be...Exsolution in metamorphosed chromite from the Red Lodge district, Montana: American Mineralogist, v. 68, p. 777–789...Chromium spinel mineralogy of the Staré Ransko gabbro-peridotite, Czech Republic, and its implications for sulfide |  | Habtoor, Abdel Monem, Ahmed, Ahmed Hassan, Akizawa, Norikatsu, Harbi, Hesham, Arai, Shoji (2017) Chemical homogeneity of high-Cr chromitites as indicator for widespread invasion of boninitic melt in mantle peridotite of Bir Tuluha ophiolite, Northern Arabian Shield, Saudi Arabia. Ore Geology Reviews, 90. 243-259 doi:10.1016/j.oregeorev.2017.03.010 | Journal (article/letter/editorial) | | pseudomorphs (bastite) are coarse-grained, with magnetite striations filling the cleavage planes of the...postmagmatic processes; the ferritchromite and Cr-rich magnetite rims are very rare, which are focused on the periphery...olivine and pyroxenes. Ferritchromite and Cr-rich magnetite along the peripheries and cracks of chromian spinel...magmatic alteration; ferritchromit and Cr-rich magnetite are restricted only along fractures and as very...and high-Al chromitites from the Sagua de Tánamo district, Mayarí-Cristal ophiolitic Massif (eastern Cuba): |  | | Corporate Document | | METALS GROUP LANE XANG MINERALS LTD VILABOULY DISTRICT SAVANNAKHET PROVINCE LAO PDR SRK ES Project Number:...the area in northwest Iran and Lesser Caucasus region and possibly parts of Serbia and Bulgaria. Sediment-hosted...deformation. All of the listed occurrences in this region are also all thought to have recently been acquired...(Azerbaijan), Boleslaw (within the Krakow-Silesian mining district, Poland) deposits are found to lie in the TMB...and epithermal deposit potential. Panagyrishte District, Bulgaria – porphyry Cu and epithermal potential |  | | Book | | mineral deposits are formed, such as those of magnetite, ilmenite, chromite, pyrrhotite, chalcopyrite...contactmetasomatic minerals originate (eg vesuvianite, magnetite, pyrrhotite and chalcopyrite). lf, during volcanic...such as gold, platinum, cassiterite, wolframite, magnetite or garnet, become concentrated. Furthermore, they...even in its powder form or in thin sections, eg magnetite or pyrite. In granular aggregates transparent...not dependent on the colour of the mineral. magnetite has a metallic lustre on its crystal faces but |  | | Book (edition) | | Colorado at the Pelican Dives mine, Silver Plume district, and at the Little Emma mine, Clear Creek County;...lode, Summit County, and in the Cripple Creek district. It is also found in Canada; Mexico; Bolivia;...California; in sodalite-syenite in the Julianehaab district, Greenland; in the liparite lavas of the island...slate and metamorphosed dolomite in the Beiyun-Obo district, Inner Mongolia, China, associated with aegirine...Antrim County, Ireland; and in the Laacher See District, West Germany. SELECTED REFERENCE: Switzer, G |
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