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| great region be obliterated from the surface of the earth.” Mining provided a reason to stay in Nevada, even...deposits that formed during the Late Proterozoic are rare or nonexistent in Nevada; however, these rocks...claim in the Gillis Range in Mineral County, and rare earth minerals at Red Rock in Washoe County. In northwestern...mineralogy, both as occurrences of newly discovered and rare minerals and as sources of collectible species....and brucite have been mined since 1935 and some rare copper-magnesium minerals have been found, are |
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| great region be obliterated from the surface of the earth." Mining provided a reason to stay in Nevada, even...deposits that formed during the Late Proterozoic are rare or nonexistent in Nevada; however, these rocks do...and brucite have been mined since 1935 and some rare copper-magnesiun1 minerals have been found, are...claim in the Gillis Range in Mineral County, and rare earth minerals at Red Rock in Washoe County. In northwestern...mineralogy, both as occurrences of newly discovered and rare minerals and as sources of collectible species. |
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| Earth-Science Reviews 100 (2010) 1–420 Contents lists available at ScienceDirect Earth-Science Reviews...doi:10.1016/j.earscirev.2009.10.011 2 H.G. Dill / Earth-Science Reviews 100 (2010) 1–420 by a pilot project...62 62 62 62 65 65 65 65 66 66 66 H.G. Dill / Earth-Science Reviews 100 (2010) 1–420 9. 10. 11. ...174 174 174 174 175 175 175 180 4 H.G. Dill / Earth-Science Reviews 100 (2010) 1–420 21. 22. 23....supply and use . . . . . . . . . . . . . . . . . . Rare Earth Elements (REE) . . . . . . . . . . . . . . . |
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| Earth-Science Reviews 100 (2010) 1–420 Contents lists available at ScienceDirect Earth-Science Reviews...doi:10.1016/j.earscirev.2009.10.011 2 H.G. Dill / Earth-Science Reviews 100 (2010) 1–420 by a pilot project...62 62 62 62 65 65 65 65 66 66 66 H.G. Dill / Earth-Science Reviews 100 (2010) 1–420 9. 10. 11. ...174 174 174 174 175 175 175 180 4 H.G. Dill / Earth-Science Reviews 100 (2010) 1–420 21. 22. 23....supply and use . . . . . . . . . . . . . . . . . . Rare Earth Elements (REE) . . . . . . . . . . . . . . . |
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| of global incidence reaches the surface of the earth, the remainder being absorbed or reflected by the...accumulation of components such alkali and alkaline-earth elements and silica. The principal modifications...substrate—in its definition and is appropriate at prospect, semi-regional and regional scales. An approach...characteristics of each site or prospect as a code (e.g. a prospect in an arid area of low relief, model...rapidly becomes the only stable form, forming goethite (FeOOH) or hematite (Fe 2 0 3 ) which are responsible |
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| Carolina Geology and Description of Thorium and Rare-Earth Deposits in the Southern Bear Lodge Mountains...geology, and geologic setting of the thorium and rare-earth veins and newly discovered large disseminated...Hay, 1918Geology and description of thorium and rare-earth deposits in the southern Bear Lodge Mountains...Thorium ores Wyoming Bear Lodge Mountains. 2. Earth, Rare Wyoming Bear Lodge Mountains. I. Title. II. Series........ 15. Graph of relation of uranium to total rare earths in the disseminated deposits ........... |
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| LIBERIA LIBYA LIECHTENSTEIN LITHUANIA LUXEMBOURG MADAGASCAR MALAWI MALAYSIA MALI MALTA MARSHALL ISLANDS MAURITANIA...oxides, silicates and phosphates, often with rare earth elements and other critical materials such as...attention owing to its close association with rare earth elements and other critical materials. The possibility...possibility of thorium as a by-product of rare earth element production is becoming increasingly relevant.................................... 51 6.5.10. Madagascar ............................................ |
 | Spandler, Carl, Morris, Caitlin (2016) Geology and genesis of the Toongi rare metal (Zr, Hf, Nb, Ta, Y and REE) deposit, NSW, Australia, and implications for rare metal mineralization in peralkaline igneous rocks. Contributions to Mineralogy and Petrology, 171 (12) doi:10.1007/s00410-016-1316-y | Journal (article/letter/editorial) |
| Toongi rare metal (Zr, Hf, Nb, Ta, Y and REE) deposit, NSW, Australia, and implications for rare metal...peralkaline composition and economically significant rare metal content that is homogenously distributed throughout...limited volatile release and allowed build-up of rare metal contents to ore grades. We speculate that...the ore minerals may have originally formed from rare metal-rich sodic-silicate melt that formed immiscible...vesicles in the rock. Keywords Peralkaline magma · Rare metal mineralization · Toongi · Crystal fractionation |
 | Abd El‐Naby, Hamdy H., Dawood, Yehia H., Sabtan, Abduallah A., Al Yamani, Mahmood S. (2021) Significance of radioelements distribution in the Precambrian rocks of Jabel Sayid, western Saudi Arabia, using spectrometric and geochemical data. Resource Geology, 71 (2) 105-122 doi:10.1111/rge.12253 | Journal (article/letter/editorial) |
| Sabtan1 | Mahmood S. Al Yamani1 1 Faculty of Earth Sciences, King Abdulaziz University, Jeddah, Saudi...Correspondence Hamdy H. Abd El-Naby, Faculty of Earth Sciences, King Abdulaziz University, P.O. Box 80206...occurrence of uranyl minerals associated with goethite and argillic alteration products in the interstitial...funding this project (Grant No. AT-30-31). Faculty of Earth Sciences, King Abdulaziz University is truly acknowledged...desert, Egypt. Journal of King Abul Aziz University, Earth Science, 13, 19–40. ABD EL-NABY ET AL. Adams |
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| _ Fluorspar ________________________________ Rare-earth and radioactive elements __________________ Molybdenum...Peak area _______________ Monumental Summit rare-earth prospect ____________ Miscellaneous lode prospects...Idaho-Rainbow group _______________________ Galena prospect __________________________ Other lode prospects..._________________________ Dowling Quartz prospect _____________________ Ramshorn prospect ________________________ Other...Valentine group __________________________ Burn Creek prospect ________________________ Other prospects ____ |
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| */ 11 17 17 Geochemical abundances of the rare-earth elements ——— Chondrites ————————————————————————...percent Ln2O3 ———————————————————————————————— 28. Rare-earth element relations, in atomic percent, for Eu-rich...seawater, and rhabdophanes ——————————————————— 34. Rare-earth element relations for 16 rhabdophanes from U...from Alaska and Taiwan ———————————————————————— Rare-earth elements in biotite from igneous rocks —————...oxides) and inversely with SiO2 contents. REE (rare-earth element) distributions in dark monazites from |
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| Element Chemistry ............... 8.2 ltace and Rare Earth Elements .................... 8.3 Sr, Nd and...Montpellier Cedex, France Davies, 0. R. Department of Earth Sciences, The University, Leeds LS 2 9JT, U. K.... Yaounde, Cameroun Nixon, P.R. Department of Earth Sciences, The University, Leeds LS2 9JT, U. K. ...southern Gondwana platforms (Milanovsky 1987). The rare examples of reported Palaeozoic rifts are all intracontinental;...structured domain characterized East Africa from Madagascar and Kenya-Ethiopia to northeastern Sudan. It |
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| Berlin 30 FRG Prof. Dr. PETR CERNY Department of Earth Science University of Manitoba, Winnipeg Manitoba...1986. Includes index. ISBN 978-3-642-87264-8 I. Rare earth metals-Congresses. 2. Tantalum-Congresses. 3...demand. The lanthanides, better known as the rare-earth elements (REE), tantalum (Ta) and niobium (Nb)...duplication of more fundamental books (such as "Rare earth elements geochemistry"; Henderson, P., editor)...ensures a wide circulation of this compendium. The rare-earth elements include the following series of 15 metals |
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| assets: Johnson, John, F. J., 3. Curtis H., 1. Earth: Vincenz, S. A. , 3. Granite controversy: Read,...retrospect and Index fossils: Stephenson, L. W., 1. prospect: McKinstry, H. E., Indiana, economic resources...and permafrost conditions, Heat exchange between earth and evaluation by airphotos: Frost, atmosphere:...Henry Bay Wales Island, Hollis area: uranium-rare earth prospect: Pillmore, C. L., 10. MacKevett, E. M., Jr...Northern: Woolson, J. R. Kasna Creek prospect: Warfield, Pribilof Islands: Earth, T. F. W.,5. R. S. Prince of |
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| Developments in Geochemistry RARE E A R T H ELEMENT GEOCHEMISTRY edited b y P. HENDERSON Department...Gadolin in 1794 extracted the earth "yttria" — a mixture of several rare earth oxides. Thus began the discovery...discovery and separation of the rare earths, but it was not until 1907 that Urbain completed the separation...separation of all the naturally-occurring rare earths by extracting lutetium. The problem facing the early...chemists was the extreme chemical coherence of the rare earth element group, which makes separation of the |
Rare Earth prospect, Unnamed caldera, Betaimboay, Antsirabe, Ambanja, Diana, Madagascar