 | B HN, B., OKRUSCH, M., WOERMANN, E., LEHNERT, K., HOERNES, S. (1995) Metamorphic Evolution of Neoproterozoic Manganese Formations and their Country Rocks at Otjosondu, Namibia. Journal of Petrology, 36 (2) 463-496 doi:10.1093/petrology/36.2.463 | Journal (article/letter/editorial) | | depending on their paragenesis. They indicate very Namibia were subjected to high-^T-low-P metamorphism dur-...aegirine, Ba—K—Nafeldspars, barite and rare kinoshitalite. palaeotectonic setting of the study area at...WORD& manganiferous sediments; Damara Orogeny; Namibia; formations. They are correlated with peak pressure...Manganese Formations and their Country Rocks at Otjosondu, Namibia JOURNAL OF PETROLOGY VOLUME :t(i NUMBER...and Miller (1983a) tentatively correlated the Otjosondu ores with the Chuos Formation, which bears glaciomarine |  | CABRAL, A. R., MOORE, J. M., MAPANI, B. S., KOUBOVA, M., SATTLER, C.- D. (2011) GEOCHEMICAL AND MINERALOGICAL CONSTRAINTS ON THE GENESIS OF THE OTJOSONDU FERROMANGANESE DEPOSIT, NAMIBIA: HYDROTHERMAL EXHALATIVE VERSUS HYDROGENETIC (INCLUDING SNOWBALL-EARTH) ORIGINS. South African Journal of Geology, 114 (1) 57-76 doi:10.2113/gssajg.114.1.57 | Journal (article/letter/editorial) | | CONSTRAINTS ON THE GENESIS OF THE OTJOSONDU FERROMANGANESE DEPOSIT, NAMIBIA: HYDROTHERMAL EXHALATIVE VERSUS...Department of Geology, University of Namibia, Private Bag 13301, Windhoek, Namibia e-mail: b.mapani@unam.na M...Africa ABSTRACT The stratigraphic position of the Otjosondu ferromanganese deposit in the Neoproterozoic Damara...the Swakop Group, as previously proposed. The Otjosondu ore comprises ferromanganese silicate-oxide assemblages...and manganese formations. The formation of the Otjosondu ferromanganese deposit is therefore unrelated |  | | Journal (issue) | | ........................pg. 3 Actinolite from Namibia by Justin Zzyzx .................................we bring you eleven articles about locations in Namibia that do not receive much publicity. It is easy...legendary deposits such as Tsumeb, the Brandberg region and the Erongo Mountains. Alpine clefts, huge soda...Mountains, located in the southwestern part of central Namibia. The Gamsberg Mountain is the most important landmark...Fluorapatite Fluorapatite is quite rare from the region but can be found as complex, colorless crystals |  | | Journal (article/letter/editorial) | | stability of both minerals is constrained in the region of low f CO2 . The paper reports data on the Fe–Si–O...First, Fig. 1 shows two subparallel lines in the region of high oxygen fugacity corresponding to the reactions...reactions (1), (8), and (5) and encompasses the region of log f O2 values at which braunite is stable...diagram, below the reaction lines 7 and 6. This region of relatively low log f O2 values corresponds to...previous diagram (Fig. 1), it corresponds to the region in the vicinity of reaction line 4. Because of |  | | Report (chapter) | | et al. 1989) Spain (Milland & Velilla 1994) Namibia (Bfihn et al. 1995) Sierra Nevada, California...micas (kinoshitalite) from types IIIA and IIA manganese silicate rocks from India and Namibia respectively...attempted to determine the phase relations of kinoshitalite and in the reported occurrences the mica has...clinopyroxenes from types IIIA and IIA rocks from India and Namibia respectively. Compositionally these are manganoan...manganese formations and their country rocks at Otjosondu, Namibia. Journal of Petrology, 36, 463-496. CANDIA |  | | Journal (article/letter/editorial) | | paragenetically bound to different assemblages. At Otjosondu (Namibia) Mn3+jacobsites are associated with hematite...with tephroite. The sedimentary country rocks at Otjosondu are highgrade metamorphic rocks (660 –700 °C,...Vestpolltind (Nor- way), Gorijhar (India), Otjosondu (Namibia) and Sausar (India) are similar in this respect...manganese formations and their country rocks at Otjosondu, Namibia. – J. Petrol. 36: 463 – 496. buzMakoV, e...Ferromanganese nodules and crusts from the Christmas Island Region, Indian Ocean. – Marine Georesources and Geotechnology |  | | Book | | Mountainland The Central Northern to Northwest Region including Damaraland The Central Namib Desertand...Copper Deposits The South The Pegmatitesin Central Namibia Luderitz and the Diamonds 44 49 241 254 272 275... Encyclopedia of the Mineralsof Namibia 443 Meteorites in Namibia Bibliography Index Photo credits...__ Republic of Namibia The President State House W°Ntdhoek FOREWORD Namibia is endowed with an...from near and far. Fine mineral specimen from Namibia are displayed in all the famous natural science |  | | Report (volume) | | mineralization in the PlioceneQuaternary Calatrava Region (central Spain) 29 43 81 91 105 117 123 139...run off. The Late Proterozoic Damara Sequence, Namibia (Table 7) consists mainly of shelf facies sedimentary...in Breitkopf 1988) of the Damara Sequence at Otjosondu consists of (bottom to top) lower quartzite, lower...c. 750-650Ma Chuos Fm, Damara Sequence Otjosondu, Namibia Interglacial transgressiveregressive sequence;...the southern margin zone of the Damara orogen, Namibia. Precambrian Research, 38, 111-130. BROS, R., STILLE |  | | Book (edition) | | abbreviated, e.g. canton (Switzerland), vilayet (Turkey), region (Chile), kray and oblast (Russia). The country...by Mobutu, and is now the Katanga administrative region again. The former Kivu province is now divided...United States or of the Upper Silesian historical region in Poland, where the importance of ore-bearing...Kunlun Mts., near Hotan, Xinjiang Uygur Autom. region, China, also at Fengtien, Taiwan. Green at Ospinskoye...Dara-i-Pioz In green needles to 7 mm at Tsumeb, Namibia. massif, Alai Mts.,Tajikistan. AM 62, 173, 1977 |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | Huantaya(*), Chanarcillo(*), and Chanca, Chile; Tsumeb, Namibia. BM DI:96, R:313, P&J:71, ABI:475. 1.1.1.3 Copper...Broken Hill mine, Zambia; Onganja mining district, Namibia. Andacolla, near Coquimbo, and Chuquicamata, Chile;...nm); weakly anisotropic. Bolshoi Anyui R.., Kolyma region, Russia, in gold-bearing alluvium. sm MZ 11(4):88(1989)...VHNjo9 = 260. R = 55.3 (540 nm). Magnetic. Kumak region, Southern Ural Mts., Russia, in quartz veins with...VHNjo9 = 900. R = 58.8 (540 nm). Magnetic. Kumak region, Southern Ural Mts., Russia, in quartz veins with |  | | Book (edition) | | Arizona; (lower right, center) mimetite, Tsiimehb, Namibia; (lower, right) gold, Amazonas, Brazi!. All specimens...Bolivia; Czechoslovakia; Norway; Germany; Tsumeb; Namibia; Chanarcillo, Chile; and Broken Hill, New South...Ojuela mine, Mapimi, Durango, Mexico; at Tsumeb, Namibia; and at Laurium, Greece. Other occurrences are...skarn, in the Solvech fluorite deposit, Karagandin region, Kazakhstan, USSR. SELECTED REFERENCE: Shpanovy...ALASKAITE associated with minerals at AlAnthony mine, Namibia. Wyoming, South Dakota (cleavelandite). Also in | | | Book (edition) | | Arizona; (lower right, center) mimetite, Tsurneb, Namibia, (lower, right) gold, Amazonas, Brazil All specimens...Bolivia; Czechoslovakia; Norway; Germany; Tsumeb; Namibia; Chaiiarcillo, Chile; and Broken Hill, New South...Ojuela mine, Mapimi, Durango, Mexico; at Tsumeb, Namibia; and at Laurium, Greece. Other occurrences are...skarn, in the Solvech fluorite deposit, Karagandin region, Kazakhstan, USSR. SELECTED REFERENCE: Shpanov...sulfide-quartz veins in the Alekseev mine, Sutamskii region, Stanovoi Range, USSR, associated with galena, |  | | Report (issue) | | no. 2, 8990 (1979). Analysis from Lake Baikal region, x-ray, infra-red data. ALUMINITE. Farkas and Werner...(not in abs.; from metamorphic rocks, Altai-Sayan region. AMPHlBULh. Lesnov et al., (Tr. Inst. Geol. Geofiz...395, 133-147 (1978). Analyses from Altai-Sayan region. BIUTITL. Kupriidnova et al., Uokl. AKad. Nauk...8, 76021 (1980). Analyses (not in abs.), Gissar region. BIOTITE. Mendoza Sanchez, Bol. Geol., Publ. Espec...(1979). Re-analysis of calderite from Utjosondu, Namibia, gives composition as calderite (Mn3 Fe+3 (2) Si |  | | Book (edition) | | Unnecessary varietal name. (TL) L1ke Superior region. Alasanitc. error for alazanite. Znp. Vses. Min...thorianite with up to 1 2 wt.% PbO. (TL) Aidan region. eastern Siberi:i. US S R . Named for locality...[PDF 29-765 1. (TL) Alekseev deposit. Sutemskii region, St:inovoi range. USSR. Named for locality. Alexandrite...yellowish green chalcedony from (TL) Death Valley region. California. USA. Amberite. error for amhritc ...Related to the brittle micas: compare with kinoshitalite. A napaite. Ca 1 Fc�'(PO,h.4H�O. 19. 14. 14 |  | | Book | | pyroxenite, near Libby, Montana, from the Khibiny region (Kola Peninsula), and from an alkaline-syenite...aragonite outside of its thermodynamic stability region are related to entrapment of HC0 3 ~ groups in...1965. The system CaO-C0 2 -H 2 in the two phase region calcite and aqueous solution,/. GeoL, 73, 391-403...concentration was in the New York City to Philadelphia region where many good localities combined with several...being held still as in Fig. 2c. Because the small region at the pointed tip has the lowest temperature in |
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