 | | Report (issue) | | SURVEY NAMIBIA 1990 Open File Report MRS 12 2 Abstract Niobium-tantalum mineralisation in Namibia occurs...columbite-tantalite series are associated with rare metal pegmatites of early Namibian age (950-880 Ma) intrusive...Namaqualand Metamorphic Complex, and with rare metal pegmatites of late Namibian age (530-460 Ma) which are hosted...microlite and betafite) occur in late Pan African pegmatites or in association with Pan African and Mesozoic...h rare metal pegmatites, or as by-products of Tin-mining operations in central Namibia (Uis, Nainais |  | | Journal (article/letter/editorial) | | geochemical variations in pegmatites of the cape cross-uis pegmatite belt, namibia Warrick C. Fuchsloch...geochemical variations in pegmatites of the cape crossuis pegmatite belt, namibia. The address for the corresponding...GEOCHEMICAL VARIATIONS IN PEGMATITES OF THE CAPE CROSS-UIS PEGMATITE BELT, NAMIBIA Warrick C. Fuchslocha*...words: Granitic pegmatite, Pegmatite classification, Namibia, Damara Orogen, Pegmatite geochemistry, Anatexis...African aged Damara Orogen in Namibia is host to the Cape Cross-Uis pegmatite SC belt, one of several NE-trending |  | | Book | | AiAiba / farm Anibib 136 8 Grosse Spitzkoppe, Erongo 9 , .,/, loringa tree . Khomas Highland...station Garub near Aus Nature conservation, Erongo 16 Welwitschia, Goboboseb Mountains 17 ....Northwest Region including Damaraland The Central Namib Desertand Escarpment The Spitzkoppen The Erongo Mountains...The Central Escarpment- The Nauchas-Gamsberg-Hakos Area West and South of Rehoboth The Central and South-CentralDeposits...Copper Deposits The South The Pegmatitesin Central Namibia Luderitz and the Diamonds 44 49 241 254 272 275 |  | | Book | | REPUBLIC OF NAMIBIA - MINISTRY OF MINES AND ENERGY GEOLOGICAL SURVEY THE MINERAL RESOURCES OF NAMIBIA FIRST...ENERGY Of the several hundred minerals present in Namibia, around sixty have been exploited. some, such as...base metals and industrial minerals have helped Namibia rank amongst the top five mining countries in Africa...terms of production and reserves. In this context, Namibia is a major producer of copper, lead, zinc, cadmium...unpublished. It is evident that mineral exploration in Namibia, as elsewhere. has changed from serendipitous discoveries |  | | Journal (article/letter/editorial) | | of Nb-Ta-Sn oxides from pegmatites of the Cape Cross–Uis pegmatite belt, Namibia WARRICK C. FUCHSLOCH*...com Abstract The Cape Cross-Uis pegmatite belt, Damara Orogen, north-central Namibia hosts multiple Ta-Nb-...Ta-Nb- and Sn-oxide-bearing pegmatites. Columbite-group minerals, tapiolite, cassiterite and minor ixiolite...ixiolite and wodginite occur in abundance within pegmatites and display various compositional and internal...trends in beryl to spodumene type rare-element pegmatites. In addition, these trends suggest that co-crystallizing |  | | Journal (article/letter/editorial) | | chemistry from rare-element granitic pegmatites: Separation Lake area, N.W. Ontario, Canada A. G. Tindle1...Summary The Separation Lake area is host to the most important rare-element pegmatites in Ontario, Canada. They...They include the Big Whopper and Big Mack petalite pegmatite systems which potentially represent the world's...second largest lithium deposit of this type. The pegmatites occur in two distinct clusters adjacent to the...Beryl-type and complex-, petalite-subtype pegmatites are the most common and a few pegmatites have characteristics |  | | Journal (article/letter/editorial) | | fluorine-rich aplite, together with associated pegmatite veinlets and lenses, is of considerable geochemical... dated microlite, observed in the aplite and pegmatite veinlets. In the course of the study some of the...tourmaline, topaz, apatite, fluorite, and occasionally petalite. There are also smaller amounts of amblygonite-montebrasite...additional elbaite, topaz, fluorite, and apatite. The pegmatite veins. In his account of the Meldon aplite Worth...composition, among them veins carrying the rare petalite, and greisen-type veins rich in lithian mica and |  | Martins, T., Lima, A., Simmons, W. B., Falster, A. U., Noronha, F. (2011) GEOCHEMICAL FRACTIONATION OF Nb-Ta OXIDES IN Li-BEARING PEGMATITES FROM THE BARROSO-ALVAO PEGMATITE FIELD, NORTHERN PORTUGAL. The Canadian Mineralogist, 49 (3) 777-791 doi:10.3749/canmin.49.3.777 | Journal (article/letter/editorial) | | OF Nb–Ta OXIDES IN Li-BEARING PEGMATITES FROM THE BARROSO–ALVÃO PEGMATITE FIELD, NORTHERN PORTUGAL Tânia...Portugal Abstract The Barroso–Alvão granitic pegmatite field, located in northern Portugal, is known...Li-bearing pegmatites, especially spodumene- and petalite-bearing bodies. Recent work on this pegmatite field...field characterized other types of pegmatites, and complex mineralization and mineral associations. Minerals...LCT (Li–Cs–Ta) pegmatites from Barroso–Alvão: spodumene pegmatites, petalite pegmatites, and lepidolite |  | Smith, S. R., Foster, G. L., Romer, R. L., Tindle, A. G., Kelley, S. P., Noble, S. R., Horstwood, M., Breaks, F. W. (2004) U-Pb columbite-tantalite chronology of rare-element pegmatites using TIMS and Laser Ablation-Multi Collector-ICP-MS. Contributions to Mineralogy and Petrology, 147 (5) 549-564 doi:10.1007/s00410-003-0538-y | Journal (article/letter/editorial) | | columbite-tantalite chronology of rare-element pegmatites using TIMS and Laser Ablation-Multi Collector-ICP-MS...from three suites of rareelement (Li, Cs, Ta) pegmatites in the Superior Province of Canada. Conventional...columbite from pegmatites in the Superior Province are; 2670±5 Ma for the Pakeagama Lake pegmatite, 2644±7 Ma... The ages broadly show that the rare-element pegmatites are temporally synchronous with adjacent peraluminous...emplacement age of economically important rare-element pegmatites. Romer and Wright (1992) have shown that columbite-tantalite |  | | Journal (volume) | | GEOLOGIQUE OE FINLANOE N:o 206 ON THE PEGMATITES IN THE TORRO AREA. SOUTHWESTERN FINLAND BY ERKKI AUROLA.... 14 PEGMATITE OCCURRENCES . .. .. . ............................. . .... 16 PEGMATITES ASSOCIATED...18 THE PEGMATITE OCCURRENCE OF LUOLAMÄKI . . . . . . . . . . . . . . . . . . . 19 PEGMATITE OCCURENCES...BELT . • . . . . . . . . . . . . . . . . THE PEGMATITES OF THE MICROCLINE GRANITES. . . . . . . . . ... 21 22 THE ORIGIN OF THE COMPLEX AND SIMPLE PEGMATITES ...... . 24 ACKNOWLEDGMENTS .... ......... |  | Liu, Chen, Wang, Ru-Cheng, Wu, Fu-Yuan, Xie, Lei, Liu, Xiao-Chi, Li, Xing-Kui, Yang, Lei, Li, Xue-Jiao (2020) Spodumene pegmatites from the Pusila pluton in the higher Himalaya, South Tibet: Lithium mineralization in a highly fractionated leucogranite batholith. Lithos, 358. 105421 doi:10.1016/j.lithos.2020.105421 | Journal (article/letter/editorial) | | Journal Pre-proof Spodumene pegmatites from the Pusila pluton in the higher Himalaya, South Tibet: Lithium...Liu, R.-C. Wang, F.-Y. Wu, et al., Spodumene pegmatites from the Pusila pluton in the higher Himalaya...Published by Elsevier. Journal Pre-proof Spodumene pegmatites from the Pusila pluton in the Higher Himalaya...muscovite granite, albite granite, and pegmatites. Numerous pegmatite dikes have intruded the Higher Himalayan...sequence oo f and the granites. Oligocene pegmatites in the Chomogu and Cuore areas, which we constrain |  | | Journal (article/letter/editorial) | | Lamujärvi, and Iivaara), rapakivi granite and pegmatite (Kovela), and kaolin-bearing weathering crusts...in late magmatic carbonatite veins in the fenite area of the Sokli carbonatite complex. Detailed mineralogical...vanadium mine. For several years, Rare Element (RE)-pegmatite of the Kaustinen and Somero–Tammela areas has...(GTK). At Kaustinen, Li-pegmatite occurs as subparallel dyke swarms in an area of 500 km2 within Paleoproterozoic...Paleoproterozoic mica schists and metavolcanic rocks. Li pegmatite contains more than 10% spodumene as megacrysts |  | | Journal (article/letter/editorial) | | concentrations in spodumene from different granitic pegmatites Received: 17 August 2005 / Accepted: 27 October...magmatic, secondary after petalite and hydrothermal) from variety of granitic pegmatites were characterized...410, 3,395 cm1 and in the 3,500–3,470 spectral region) are strongly polarized with maximum absorption...are consistent with petrologic models of the pegmatite (sub)types formations. Keywords Spodumene Æ EMP...EMP Æ FTIR Æ OH defect Æ Granitic pegmatites Introduction Intensive research in the past few decades |  | | Journal (article/letter/editorial) | | pp. 753-788 (2002) TOURMALINE IN PETALITE-SUBTYPE GRANITIC PEGMATITES: EVIDENCE OF FRACTIONATION AND CONTAMINATION... Canada ABSTRACT Tourmaline in petalite-subtype granitic pegmatites from the Pakeagama Lake and Separation...compositional evolution of pegmatite-forming melts through magmatic crystallization and pegmatite melt – host-rock... At the former locality, tourmaline from the pegmatite units is essentially magmatic, whereas at the...locality, tourmaline in many of the Fe-suite pegmatites displays characteristics (such as elevated Mg |  | | Report (issue) | | manganotantalite crystals from Moolyella, Pilbara region. Simpson Collection, Western Australian Museum........................ 15 Granitic rare-metal pegmatites .............................................................................. 17 Spodumene, petalite, and amblygonite subtypes ......................Regional controls affecting the distribution of pegmatites .................................................................... 24 Regional rare-metal pegmatite zoning and lithogeochemical anomalies ....... |  | | Report (issue) | | and Minerals office whose district includes the area covered by the report (see below). Copies can be...Sales and the office whose district includes the area covered by the report. Although a particular report...Abitibi greenstone belt in the Timmins–Kirkland Lake area: revisions to stratigraphy and new geochronological... Reappraisal of the geology of the Shining Tree area (west part), District of Sudbury G.W. Johns 7....Township area C.T. Barrie The Kidd–Munro Extension Project: geology of the Munro North area C.T. Barrie |  | | Journal (article/letter/editorial) | | http://www.tandfonline.com/loi/tigr20 Rare-Metal Pegmatites from the Southeastern Desert, Egypt: Geology...this article: Gehad M. Saleh (2007) Rare-Metal Pegmatites from the Southeastern Desert, Egypt: Geology...& Son, Inc. All rights reserved. Rare-Metal Pegmatites from the Southeastern Desert, Egypt: Geology...Box 530, El-Maadi, Cairo, Egypt Abstract The pegmatite province of the Southeastern Desert (SED) is part...the Red Sea (and covers an area of approximatly 120 km2). Rare-metal pegmatites within the SED are divided |  | | Journal (article/letter/editorial) | | Article Petrophysical Database for European Pegmatite Exploration—EuroPeg Claudia Haase 1, * and Claudia...haase@ngu.no; Tel.: +47-7390-4485 Abstract: Granitic pegmatites contain natural concentrations of a variety of...addressing the exploration of buried, small-scale pegmatite deposits in Europe through the development of...component of these toolsets is petrophysical data of pegmatite ores and their wall rock. These data are essential...are compiled in the first database for European Pegmatite deposits: EuroPeg_PetroDB. Samples are supplemented |  | | Journal (volume) | | Striations and Glacier Movements in the Tampere Region, Southern Finland .. . .. . . . . .. . . .. .....that of guanajuatite. OCCURRENCE The Orijärvi region belongs to the Svecofennian schist zone and is...reflections in joseite, especially in the back-reflection area, which are missing in laitakarite and vice versa...an average of reflections in the back reflection area. 2 e was between 127.4° -158.6° and a o turned out...PENTTI (1914) On the petrology of the Orijärvi region in Southwestern Finland. Bull. Comm. geol. Finlande |  | | Journal (volume) | | Striations and Glacier Movements in the Tampere Region, Southern Finland .. . .. . . . . .. . . .. .....that of guanajuatite. OCCURRENCE The Orijärvi region belongs to the Svecofennian schist zone and is...reflections in joseite, especially in the back-reflection area, which are missing in laitakarite and vice versa...an average of reflections in the back reflection area. 2 e was between 127.4° -158.6° and a o turned out...PENTTI (1914) On the petrology of the Orijärvi region in Southwestern Finland. Bull. Comm. geol. Finlande |  | | Book (volume) | | GROUP.231 Nepheline, Kalsilite ....... 231 PETALITE.271 LEUCITE.276 SODALITE GROUP.289 Sodalite, Nosean...the most important constituents of the simple pegmatites and are common in mineral veins. They are major...which atoms are labelled only within the unique area, and Fig. 5a shows part of the structure as viewed...Plate 1. In black: schematic illustration of the cross linkage of the felspar “chains” to form a “sheet”...twinning, and most often shows both, in the well-known cross-hatched or “tartan ” pattern. The peculiar relations |  | | Report (issue) | | activity was a full-day tour of the Park City, Utah area to experience it metals mining heritage via an underground...the scenery and amenities of a world-class resort area. The second guest activity was a tour of the Salt...included industrial mineral sites of the Salt Lake City area and salt and magnesium plants on the south shore.... . . . . . . . . . . . . . . . . . . . . . . . Area . . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . Physical Property-Weighted Area . . . . . . . . . . . . . . . . . . . . . . . . |  | | Book (volume) | | volume). ii List of Figures Figure 1 Geological cross section through the Sarobay Muscovite Deposit (after...Filippov, 1974). Figure 2 Geological sketch map and cross section through the Jamanak Lithium Deposit (after...central segment of the Parun Field of Rare-Metal Pegmatites (after. G.K. Eriomenko and L.N. Rossovskiy, 1974)...1974). Figure 4 Geological sketch map and cross section through the Khanneshin Carbonatite Volcano (after... Kirichek, 1974). Figure 6 Geological map and cross section through the central and northern segments |  | | Report (issue) | | including mines, mineral showings, deposits, and pegmatite fields. DATA SOURCES, PROCESSING, AND ACCURACY...publication. The table is divided into 3 parts; Pegmatite Fields, Named Sites & Deposits, and Sites and...field contains the name of the mine, deposit, field, area, or occurrence being described. Synonyms and Other...names or spellings for the site. For a deposit or area, this field might also 5 include any specific...and morphologic types of zones of rare-metal pegmatite veins and the potential for predicting deposits: |  | | Journal (article/letter/editorial) | | sedimentary, and metamorphic) and structures. Cross sections and images illustrate the common ore types... separated from the text but supplemented with cross-references to the columns and lines, where they...considered as an area of scientific research of black and white smokers, rather than an area of exploration...with other commodities will enter a new frontier area through the metal's or mineral's doors rather than...Periclase Perovskite (dysanalyte (Nb), knopite (Ce)) Petalite Petzite Pezzottaite Phenakite Phillipsite-(K) |
|
