 | | Journal (article/letter/editorial) | | Authors are printed in SMALLCAPITALS,Subjects in lower-case roman, and Localities in italics. T h e m i...Aerugite, synthesis, 72; Cornwall, anal., X-ray, 72; Saxony, anal., X-ray, 72. Aeschynite-priorite series,...topotactic formation from y-CaSiOa, 347. Ankerite, Germany, topotactic decomposition of, 634. Anthoinite,...Arsenobismite, Brazil, 785. Artern, Sachseu-Anhalt, Germany, mellite, 542. ASWATHA~ARAYA~A(U.), Isotopic ages...(S.), see SARBADHIKARI (T. n.), 770. Bhilwara district, ]~ajasthan, India, scorodite, 776. BmaAR (G. |  | | Journal (article/letter/editorial) | | mining enterprises. Keywords: dunite–troctolite–gabbro massif; building materials Ni-Cu; PGE; chromitite;...example of the Yoko–Dovyren layered dunite–troctolite–gabbro massif of the North Baikal region, Russia. 2. Yoko–Dovyren...Chr) → troctolite + olivine gabbro (Ol + Pl + Chr ± Cpx) → olivine gabbro (Pl + Ol + Cpx ± Chr) → olivine...→ quartz gabbronorites and pigeonite-containing gabbro (Pl + Cpx ± Opx ± Pig). The quartz gabbronorites...massive ores, is concentrated along the intrusion’s lower contact—the Baikal deposit [27,28,37]. The mineralization |  | | Journal (article/letter/editorial) | | west of Shinkolobwe, near Mindigi mine, Kambove District, Haut-Katanga, Democratic Republic of the Congo...)zAl3(PO4)zF6] ·H 2 O Pre Penrice marble quarry, 2 km north of Angaston, Barossa Valley, South Australia, Australia...PbTe'1+O 3 Mtw On a dump of the Delamar mine, Delamar district, Lincoln Co., Nevada, USA {37°27' 45" N, 114°46'08")...North Mesa mine group, Temple Mountain, San Rafael district, Emery Co., Utah, USA Jakub Plasil\ Anthony R...Madeiraite Na2Ca2Fe 2Zr2(Si2O7hO2F2 Mde Terra do Batista gabbro outcrop, Porto da Cruz, Machico, Madeira Island |  | Bellatreccia, F., Della Ventura, G., Caprilli, E., Williams, C. T., Parodi, G. C. (1999) Crystal-chemistry of zirconolite and calzirtite from Jacupiranga, São Paulo
(Brazil) Mineralogical Magazine, 63 (5) 649-660 doi:10.1180/002646199548817 | Journal (article/letter/editorial) | | 649-660 Crystal-chemistry of zirconolite and calzirtite from Jacupiranga, Sgo Paulo (Brazil) F. BELLATRECCIA1...Jacupiranga zirconolite has higher Ca, Th, (Nb + Ta) and lower Ti and REE, which is consistent with its occurrence...(Nb,Ta) 5+ + (Fe,Mg) 2+ ~- (Ca) 2+ + 3(Ti)4+. Calzirtite, Ca2ZrsTi2016 , although intergrown with zirconolite...accommodated in the calzirtite structure. KEYWORDS" Jacupiranga, Brazil, zirconolite, calzirtite, mineral chemistry...data on calzirtite intergrown with this mineral, and compare these with data for calzirtite from other |  | | Journal (article/letter/editorial) | | Geological Sciences, Free University Berlin, Berlin, Germany 3 Department of Mineralogy and Petrography, Faculty...characterised by Del Monte (1967) as pyroxenite, gabbro, diorite, monzogabbro and monzodiorite. The occurrence...Monzoni intrusive samples (wt.%), OGB olivine-gabbro, GB gabbro, LGB leucogabbro, MG monzogabbro, data from...the eastern Monzoni contact aureole leucogabbro, gabbro, monzogabbro and olivinegabbro are exposed at the...the central Western Dolomites, beginning with the lower Permian Bolzano quartz porphyrites at the bottom |  | | Journal (article/letter/editorial) | | Hindubagh, Zhob valley: hydromagnesite, 236. India Ellammankovilpatti, Tiruehirappali district, Madras : cordierite...ortho- and clinopyroxenes, 759. Simla Jhunjhunu district, Rajasthan: almandine, grossular, 1018. Andhra...Congo Bufumbira: leucite, 596. Mt. Misoba, Maniema district: anthoinite, 995. Central Africa Kangankunde hill...t~hodesia Marangudze: pseudoIcucite, 596. Wankie district: triplite, 661. East Africa Mr. Antisirabey, Madagascar:...~omalia Darkainle: graphite, earbonatite, 963. Hamar: gabbro, 720. S o u t h Africa Kerala ]lmenite, magnetite |  | | Journal (article/letter/editorial) | | granites, syenites (including nepheline varieties), gabbro, and ultramafic Section 4. rocks. There are three...igneous–metamorphic units (Figure 2): (1) large gabbro intrusions among Alkaline metasomatites are Ti–fassaite–nepheline...amphibolite and carbonate rocks; (2) granitic, gabbro, and ultramafic intrusions among abundant wollastonite...amphibolite and marble; (3) small granitic and gabbro intrusions among complex where they coexist with...km on the shore Lake Baikal rocksthey are mostly gabbro–dolerite follow linear bodiesof(altered mafic(Figure |  | | Report (issue) | | reaction rims (< 200-250 μm). As pseudomorphs after calzirtite. Physical Properties: Cleavage: Perfect on (010);...in carbonate xenoliths in a subvolcanic layered gabbro-peridotite massif. Association: Fassaitic pyroxene...monticellite, vesuvianite, diopside, foshagite, brucite, calzirtite, tazheranite, baghdadite, apatite, calcite, native...north-east flank of the Dovyren (Yoko-Dovyren) layered gabbro-peridotite massif, 60 km north of Baikal Lake, |  | | Book (edition) | | dept. (departement), dept. (departamento), dist. (district). Less common terms are not abbreviated, e.g....Scbwarzwald Mts., in the Sailauf quarry, Spessart Mts., Bavaria. both Germany, and from the Rabejac deposit... = = = = = Acanthite, x 16 mm, Freiberg, Germany, H Abernathyite, 12 mm, Ririera/, France, H Abhurite...at the Himmelsftirst mine, Freiberg, both Saxony, Germany. In the subtropical areas acanthite may occur...byssolite. Mono- coast of North America: Kobuk River Valley, Alaska, clinic, C2/m, a,b,c = 9.89, 18.20, 5.31 |  | Starikova, A. E., Sklyarov, E. V., Kotov, A. B., Sal’nikova, E. B., Fedorovskii, V. S., Lavrenchuk, A. V., Mazukabzov, A. M. (2014) Vein calciphyre and contact Mg skarn from the Tazheran massif (Western Baikal area, Russia): Age and genesis. Doklady Earth Sciences, 457 (2) 1003-1007 doi:10.1134/s1028334x14080182 | Journal (article/letter/editorial) | | Forsterite contains a small admixture of iron, which is lower than that in the contact magne sium skarn by one...picroilmenite, geikielite, perovskite, tazheranite, calzirtite, baddeleyite, zirconolite, rarely zirkelite,...Birkhin Complex: (2) the second phase, metamorphosed gabbro, monzogabbro, monzonite, syenite, (3) the first...microgabbro; (4–7) Tazheran Complex: (4) subalkaline gabbro and microgabbro, (5) nepheline syenite, (6) gneissose...min erals, such as baddeleyite, tazheranite, calzirtite, and zirconolite (Table 1). We performed the |  | | Journal (article/letter/editorial) | | plutons, and basic to ultrabasic complexes. Numerous gabbro-anorthosite massifs (2.7–2.1 Ga) containing Fe-Ti...alkaline massifs (D) Granodiorite massifs (PR1) Gabbro-anorthosite and anorthosite massifs (PR1) Peralkali...peralkaline granite Major REE concentrator or accessory Calzirtite Ca2Zr5Ti2O16 Carbonatite complexes Accessory...higher the P2O5 content of the fluorapatite, the lower are the contents of Sr and REE (Ivanov, 1987; Ivanyuk...Horizon III-14 Loparite Horizon The Muruay River Valley Differentiated Suite Eudialyte Suite B 1543 |  | | Book | | Eder, Germany Peter T. Bobrowsky, Canada Jesús Martínez-Frías, Spain Axel Vollbrecht, Germany The GeoGuide...Vries B, Walsh JJ, Walter TR (2008) Unzipping long valley: an explanation for vent migration patterns during...1905, 120–123 von Eckermann H (1948) The alkaline district of Alnö Island. Sver Geol Unders Ca 36:176 Weidendorfer.... . . . . . . . . . . . . . . 4.5 The “Boliden Quarry” near Hörningsholm . . . . . . . . 4.6 Type Locality.... . . . . . . . . . . . . 4.9 Abandoned Sövite Quarry at Smedsgården . . . . . . . . 4.10 Smedsgården |  | Kadiyski, M., Armbruster, T., Galuskin, E. V., Pertsev, N. N., Zadov, A. E., Galuskina, I. O., Wrzalik, R., Dzierzanowski, P., Kislov, E. V. (2008) The modular structure of dovyrenite, Ca6Zr[Si2O7]2(OH)4: Alternate stacking of tobermorite and rosenbuschite-like units. American Mineralogist, 93 (2) 456-462 doi:10.2138/am.2008.2669 | Journal (article/letter/editorial) | | the Dovyren (Yoko-Dovyren) subvolcanic layered gabbro-peridotite massif of Proterozoic Age (~700 Ma)...diopside–Al-Ti-diopside (“fassaite”), monticellite, calzirtite, tazheranite, baghdadite, perovskite, apatite...pyroxene leading to newly formed perovskite, calzirtite, tazheranite, baghdadite, and dovyrenite. Dovyrenite...last phase frequently forming pseudomorphs after calzirtite. Coexistence of foshagite and monticellite in...linked together by common edges of the upper and lower Ca polyhedra and by shared edges between Si tetrahedra |  | WU, FU-YUAN, MITCHELL, ROGER H., LI, QIU-LI, ZHANG, CHANG, YANG, YUE-HENG (2017) Emplacement age and isotopic composition of the Prairie Lake carbonatite complex, Northwestern Ontario, Canada. Geological Magazine, 154 (2) 217-236 doi:10.1017/s0016756815001120 | Journal (article/letter/editorial) | | km2 , and is composed of subalkaline and alkaline gabbro, nepheline syenite, diverse contaminated syenites...1992). The Killala complex consists of troctolite, gabbro, monzonite, syenite, nepheline monzonite–syenite...pyrite. Trace minerals (<1 vol. %) are thorianite, calzirtite, pyrrhotite, galena, cobaltian pentlandite, chalcopyrite...pyrochlore– betafite, wohlerite, perovskite and calzirtite in the carbonatite and ijolite, with apatite...of 0.281200 ± 16 (2σ, n = 7), which is slightly lower than the previously reported values by TIMS (0.281229 |  | Gomes, Celso de Barros, Comin-Chiaramonti, Piero, Azzone, Rogério Guitarrari, Ruberti, Excelso, Rojas, Gaston Eduardo Enrich (2018) Cretaceous carbonatites of the southeastern Brazilian Platform: a review. Brazilian Journal of Geology, 48 (2) 317-345 doi:10.1590/2317-4889201820170123 | Journal (article/letter/editorial) | | carbonatites are of Cretaceous age, with two well-defined Lower Cretaceous and Upper Cretaceous generation episodes...well-delimited areas of the Brazilian territory: the Ribeira Valley in the southeast (Ruberti et al. 2005, Gomes et...Petrography Mineralogy Age References BRAZIL Ribeira Valley 1 Barra do Itapirapuã Dike, vein, breccia Mg-ca...Cc, Phl, Pr, Qz, Ap, Bas, Pa, Syn, AB, Ga, Sph Lower Cretaceous 1-19 2 Ipanema Dike, vein Ca-ca... S, Fe, Te Cc, Phl, Op, Ap, Cpx, Amp, Ba, Sf Lower Cretaceous 2-6, 12, 13, 15, 18-26, 59 3 Itanhaém |  | Pujol-Solà, Núria, Proenza, Joaquín A., Garcia-Casco, Antonio, González-Jiménez, José María, Román-Alpiste, Manuel J., Garrido, Carlos J., Melgarejo, Joan Carles, Gervilla, Fernando, Llovet, Xavier (2020) Fe-Ti-Zr metasomatism in the oceanic mantle due to extreme differentiation of tholeiitic melts (Moa-Baracoa ophiolite, Cuba) Lithos, 358. 105420 doi:10.1016/j.lithos.2020.105420 | Journal (article/letter/editorial) | | gabbroic rocks (olivine-gabbro, gabbro, gabbronorite, and ferrogabbro or oxide gabbro), often emplaced as...harzburgite contains increasing ro amounts of dunite, gabbro sills, and chromitite, all forming elongated pseudotabular...wehrlite, re troctolite, olivine gabbro, and pegmatitic gabbro (Guild 1947, Flint et al., 1948; Proenza...gabbros Plagioclase crystals (up to 2 cm) in the gabbro dike show polysynthetic twinning (Fig. 4a) and...chromitite The interaction between the pegmatitic gabbro enriched in trace elements and the ordinary chromitite |  | | Book (edition) | | Affiliation/Address Luzerner Str. 10-12, D-12205 Berlin, Germany – Freie Universität Berlin, FB Geowissenschaften...Mineralogie, Malteserstr. 74-100, D-12249 Berlin, Germany Bundesanstalt für Geowissenschaften und Dr. Frank...Stilleweg 2, D-30655 HanDr. Thomas Oberthür nover, Germany Dr. Thomas Kenkmann Museum für Naturkunde der ... zu Berlin, Invalidenstr. 43, D-10115 Berlin, Germany Prof. Dr. Robert Marschik & Ludwig-Maximilians...Rieger cengeologie, Luisenstr. 37, D-80333 München, Germany Dr. Thomas Seifert TU Bergakademie Freiberg, Institute |  | | Journal (article/letter/editorial) | | Western Alps (Fig. 1A) represents a tilted block of lower continental crust, consisting of mafic and ultramafic...three mantle massifs exposed at the base of the lower crust in this area. It forms the core of a roughly...amphibole-rich, garnetbearing gabbro and pyroxenite, amphibole-rich peridotite, and gabbro, passing outward into...in the reaction textures. It is characterized by lower reflectance and higher transparency (with a light...variably enriched in total Fe and Al, and have lower Cr compared with the coexisting massive chromian |  | | Journal (article/letter/editorial) | | main diachronous plutonic bodies: an older dunite-gabbro-syenite in the NW and a younger clinopyroxenite...Moreover, TE it may be suggested that, unlike gabbro-syenites and carbonatites, mostly generated CE...barite sulfides, baddeleyite, zircolonite and calzirtite are accessory phases. The complex aureola around...SC R Supplementary Figs. 2-5. NU 5.1 Dunite-gabbro-syenite intrusion MA Olivine is present in the...to 3.3 wt%) MA and Al2O3 (up to 6.6 wt%) and lower Na2O (down to 0.2 wt%); Supplementary Table D |  | | Journal (article/letter/editorial) | | therein). There are fewer occurrences known from: gabbro (e.g. Pala, San Diego MA County, California;...(U-Pb TIMS of baddeleyite, in-situ U-Pb SIMS of calzirtite) give similar ages of 1163 ± 3.5 Ma (Rukhlov...in Ontario: Prairie Lake Carbonatite Complex, district of Thunder Bay, Ontario Geological Survey Study...Study 46, 91p. SC Schaller, W.T., 1911. Orbicular gabbro from Pala, San Diego County, California. Journal...polygenetic origin of orbicular granodiorite in the Lower Castle Creek pluton, AC CE P Northern Sierra Nevada |  | Hurai, Vratislav, Huraiová, Monika, Gajdošová, Michaela, Konečný, Patrik, Slobodník, Marek, Siegfried, Pete R. (2018) Compositional variations of zirconolite from the Evate apatite deposit (Mozambique) as an indicator of magmatic-hydrothermal conditions during post-orogenic collapse of Gondwana. Mineralogy and Petrology, 112 (3) 279-296 doi:10.1007/s00710-017-0538-7 | Journal (article/letter/editorial) | | 1979); Phalaborwa, Africa (Verwoerd 1986); Hegau, Germany (Keller et al. 1990); Howard Creek, Canada (Mariano...Itatiaia, Brazil (Melusso et al. 2017); Laacher See, Germany (Della Ventura et al. 2000); Tre Croci, Italy (Bellatreccia...Italy (Pascal et al. 2009), ultramafic rocks and gabbro pegmatites – Bahia, Brazil (Santos et al. 2015);...zirconolites crystallized in ultramafic rocks, gabbro pegmatites and metamorphic rocks. This may indicate...GC (1999) Crystal-chemistry of zirconolite and calzirtite from Jacupiranga, São Paulo (Brazil). Mineral |  | | Journal (article/letter/editorial) | | than C H U R (chondrite uniform reservoir) and lower Rb/Sr ratio than bulk Earth; (3) the y o u n g East...100am . P [~ ~t Granite and granodiorite Gabbro and gabbro-anorthoshc Sandstone ~ ~ , ~ + . ....Common accessory minerals include baddeleyite, calzirtite, pyrochlore, zircon and zirkelite. Serpentine...western rift areas have values that are significantly lower 513C = - 6 to - 7~o PDB. These have been attributed...Ph 3 phoscorite, and this value is substantially lower than the values found in the calcites from C 1 and |  | Doroshkevich, Anna, Sklyarov, Eugene, Starikova, Anastasia, Vasiliev, Vladimir, Ripp, German, Izbrodin, Ivan, Posokhov, Viktor (2017) Stable isotope (C, O, H) characteristics and genesis of the Tazheran brucite marbles and skarns, Olkhon region, Russia. Mineralogy and Petrology, 111 (3) 399-416 doi:10.1007/s00710-016-0477-8 | Journal (article/letter/editorial) | | weaknesses. Keywords Brucite marble . Skarn . Tazheran gabbro-syenite massif . Olkhon collision system . Stable...sizes in syenites as well as veins crosscutting gabbro and syenites (Sklyarov et al. 2009, 2013). In addition...simultaneously with nepheline syenite and subalkaline gabbro. In this study, we present the first stable isotope... is composed mostly of amphibolite, marble and gabbro massifs, and minor granite and gneiss (Fig. 1)...syenite alkaline syenite » » » » metamorphosed gabbro, monzogabbro, syn-metamorphic strike-slips hornfels |  | | Book (edition) | | United States (nearly all localities), Canada, Germany, Norway, Sweden, Uganda, Tanganyika, Nyasaland...about a decade. Bose (1884)! found in the Lower Narbada Valley in west central India masses “of yellowish...areas and also of similar rocks at Kaiserstuhl, Germany. ‘Either xenoliths of basalt or aggregates of silicate...restudied by Saether (1958); that of the Kaiserstuhl, Germany, by Wimmenauer samt, 1959; and his associates...Brazil; Fen, Norway; Alno, Sweden: Kaiserstuhl, Germany; Phalaborwa, South Africa; Chilwa Island, N yasaland; |  | | Journal (article/letter/editorial) | | mineral assemblage at a pressure of 15 kbars, or lower. As a result of the reaction the residual carbonatite...very low Na and Mg * = 0.89-0.95, were formed at lower pressures (15 kbar) involving partial decarbonation...Dalton and Wood (1993) concluded that, under such lower pressure conditions, Ca-rich carbonatite melts [...generation phase assemblage and has very low T i O 2 and lower FeO than normal mantle clinopyroxenes, with variable...and Kohler 1990) and assuming equilibrium, the lower temperature limit for the metasomatic reaction can |
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