 | | Report (issue) |
| 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...mainly from niobium-tantalum-rich rare metal pegmatites, or as by-products of Tin-mining operations in...Rust). Prominent niobium-tantalum mineralised pegmatites occur in the Tantalite Valley in southern Namibia |
 | | Report (issue) |
| theMinistry of Petroleum, Energy and Mines, Islamic Republic of Mauritania Second Projet de Renforcement Institutionnel...Industrial Minerals Occurrences and Permissive Areas for Other Occurrences in the Islamic Republic of Mauritania:...industrial minerals occurrences and permissive areas for other occurrences in the Islamic Republic of Mauritania...Industrial Minerals Occurrences and Permissive Areas for Other Occurrences in the Islamic Republic of Mauritania...Beryl, described herein with the discussions of pegmatites, is also listed in indices of potential mineral |
| | Report (issue) |
| theMinistry of Petroleum, Energy and Mines, Islamic Republic of Mauritania Second Projet de Renforcement Institutionnel...Industrial Minerals Occurrences and Permissive Areas for Other Occurrences in the Islamic Republic of Mauritania:...industrial minerals occurrences and permissive areas for other occurrences in the Islamic Republic of Mauritania...Industrial Minerals Occurrences and Permissive Areas for Other Occurrences in the Islamic Republic of Mauritania...Beryl, described herein with the discussions of pegmatites, is also listed in indices of potential mineral |
 | | Journal (article/letter/editorial) |
| fields: an original approach to constrain faults– pegmatites–granites relationships Sarah DEVEAUD1–3*, Charles...crystallization of pegmatites, they are not appropriate to decipher, on field scale, the LCT pegmatites’ emplacement...apply a spatial statistical analysis to the LCT-pegmatites field of Monts d’Ambazac in the Saint Sylvestre...constrain and discuss spatial relationships between pegmatites, granites and faults. Various numeric variables...i) the spatial distribution of the pegmatite occurrences, including their grouping/ scattering and aligning |
 | | Corporate Document |
| the Catamarca Province, prospective for Lithium Pegmatites. On the 14th June following the extinction...host a number of well documented Lithium bearing pegmatites near the townships of Ancasti and Vilisman (Figure...Catamarca Mining Court. Pegmatites of the Ancasti Ranges: Various studies of pegmatites in the Ancasti Ranges...(1988) grouped a series of lithium‐bearing pegmatites occurrences in the Ancasti Ranges into two groups,...the Company’s position in this important Lithium district and we are still broadening the search for Lithium |
 | | Report (issue) |
| GEOLOGICAL SURVEY Open File Report 5717 Granitic Pegmatites of the Bancroft Area Southeastern Ontario by...the following form: Goad, B.E. 1990. Granitic pegmatites of the Bancroft area, southeastern Ontario/ Ontario...of the Regional or Resident Geologist in whose district the area covered by this report is located. Copies...FRONTENAC AXIS................................ 27 PEGMATITES OF THE GRENVILLE PROVINCE......................... Granitic Pegmatites....... Syenitic Pegmatites....... Morphology of the Pegmatites........ Age.. |
 | | Journal (article/letter/editorial) |
| Pfaffenwaldring 55, D-7000 Stuttgart 80 (Vaihingen), Federal Republic of Germany 3 Laboratoire de Min~ralogie, Universit~...triphylite-zwieselite within weakly differentiated and Li-poor pegmatites is of general significance. Offprint requests...Africa, or Namibia, is well known for its numerous pegmatites located in the Precambrian Damara System. Some...important papers have been published on the Namibian pegmatites. They deal especially with their general geological...geological setting (Gevers 1963; Smith 1965), with occurrences of valuable minerals (Reuning 1923; Gevers and |
 | | Journal (article/letter/editorial) |
| discussed. A general survey of the veins and pegmatites occurrences of the Kamimga area, shows an inverse succession...Une analyse d'ensemble des diff6rents filons et pegmatites de la r6gion de Kamituga montre une succession...colombite et 23 T de cassit&ite. Compar~e aux autres pegmatites off les r&erves de bdryl d6passent tr~s rarement...Par comparaison a v e c l a plupart des autres pegmatites, la disposition verticale des diff6rentes unitds...rapidement une pegmatite a quartz-microcline-muscovite grains assez fins (Icm en moyenne de diam6tre) |
 | | Book |
| vanadium, gold and uranium, non-metals such as muscovite and phlogopite, and considerable amounts of asbestos...altering the broad metallogenic profile of the region, as established in the pre-war years. Precambrian...gold placers in the Lena and Aldan regions and muscovite deposits in the Baikal Highlands were already...of the ferruginous quartzites of the Chara-Tokko region, magnetite and phlogopite skarn deposits (Tayozhnoye...subsequent crustal rejuvenation that affected the entire region? We should not lose sight of the well-known fact |
 | | Thesis/Dissertation |
| Tourmaline of the Kragerø pegmatites The source of boron and its implication for the melt formation of...of Sveconorwegian pegmatites Erika De La Cruz Master Thesis in Geosciences Mineralogy, Petrology and...OF OSLO June 2021 Tourmaline of the Kragerø pegmatites The source of boron and its implication for...Sveconorwegian pegmatites Erika De La Cruz © Erika De La Cruz Tourmaline of the Kragerø pegmatites. The source...implication for the melt formation of Sveconorwegian pegmatites http://www.duo.uio.no/ Abstract In the Kragerø |
 | | Report (issue) |
| TransTrans Canada Highway and the Flin Flon Snow Lake region that are accessible by road. Maps N to P show areas...Bird Lake Cat Lake Garner Lake 93 Interlake region 94 ............................................ . . . . . . . . . . . . . . . . . 20 12. Muscovite book from Greer Lake quarry . . . . . . . . ..... . . . . . . . 54 55. Green kyanite with muscovite flakes in quartzo-feldspathic groundmass, Herb... 69. Dark crystals of cassiterite in quartz-muscovite rock from Winnipeg River area . . . . . . . . |
 | | Book (edition) |
| anthracite field Coal breaker in Pennsylvania anthracite region 10. Structure section in Tazewell County, east...Diagrammatic section of sands in the central Appalachian region .... 95 98 Geologic section of Ohio-Indiana oil...structure of western field of Los 104 Angeles district 106 Section of Spindle Top oil field near Beaumont...Galveston, Tex 32. Hypothetical section in same district as Fig. 31 33. Map showing lines of sections in...by and gas 42. Section across portion of oil district of southwestern of Alaska, showing areas in which |
 | | Book (edition) |
| results of these processes are exemplified in the occurrences described in Parts II and III. For advanced courses...occurrence of gold in quartz veins in the Krissites district, Greece, later described by Diodorus. Theophrastus...dikes injected in a molten condition. He cited occurrences of segregations of magnetite and chromite in...and temperature, change to more stable forms of muscovite or other silicates. Mica schists or garnets may...He found that the sphalerite of the Tri-State District, for example, had been Liquid Inclusions. 40 |
 | | Book |
| record. Careful examination of the rocks in the region can help unravel the mysteries surrounding their...Granite is the presence of vein-like aplites and pegmatites. Aplite veins developed when residual granitic...fractures that formed as the granite cooled. Pegmatites are very coarse-grained igneous rocks of granitic...particular interest in the Carlow region is the occurrence of lithium-rich pegmatites containing an unusual mineral... Geol. Soc. Ir., 8. LUECKE, W. 1981. Lithium pegmatites in the Leinster Granite (southeast Ireland). |
 | | Report (volume) |
| S., Gunning, H. G., 5. California, southern, pegmatites: 3. Arciniega, V. M. Geology teacher, problems:... J., 14. Science and hobby: Meen, V. B. , 1. Pegmatites, California, southern: Mineralogy and the field...Wetmore, hoff, W. S., 3. A., 1. Alberta, plains region: Gravenor, Cuebec, St. Lawrence Lowlands, C. P...compared: Hutcheson, ceous, Chattahoochee River L. B. region: Stephenson, L. W., 11. Weisner quartzite, Bluffton...Homer district: Ridge and Bering Sea: Shor, Barnes, F. F., 6. G. G., Jr., 6. Malaspina district, Kulthieth |
