 | Campbell, L. S., Compston, W., Sircombe, K. N., Wilkinson, C. C. (2014) Zircon from the East Orebody of the Bayan Obo Fe–Nb–REE deposit, China, and SHRIMP ages for carbonatite-related magmatism and REE mineralization events. Contributions to Mineralogy and Petrology, 168 (2) doi:10.1007/s00410-014-1041-3 | Journal (article/letter/editorial) | | Zircon from the East Orebody of the Bayan Obo Fe–Nb–REE deposit, China, and SHRIMP ages for carbonatite‑related...banded ores in the East Orebody of the Bayan Obo REE–Nb–Fe deposit are presented, with mineral compositions...rim zircon is characteristic for this mineral deposit and is indicative of a persistent common source...spectroscopy · Carbonatites Introduction The Bayan Obo Fe–Nb–REE-ore deposit was first known in the early twentieth...were recognized, and today it is the largest REE deposit known, accounting for much of China’s domination |  | | Journal (article/letter/editorial) | | Deposits: The Key Example of China Banded ore of the Bayan Obo deposit Jindrich Kynicky1, Martin P.... the deposits of rare earth elements (REEs) in China are a world-class phenomenon. The combination of...accumulation of REEs in the Bayan Obo deposit and the low cost of mining the extremely valuable heavy...heavy REEs from residual deposits makes China almost a monopoly producer. Research on a range of Chinese...metamorphosed carbonatite and polyphase mineralization at Bayan Obo, through unusual flat REE patterns in carbonatites |  | Zhongxin, Yuan, Ge, Bai, Chenyu, Wu, Zhongqin, Zhang, Xianjiang, Ye (1992) Geological features and genesis of the Bayan Obo REE ore deposit, Inner Mongolia, China. Applied Geochemistry, 7 (5) 429-442 doi:10.1016/0883-2927(92)90004-m | Journal (article/letter/editorial) | | features and genesis of the Bayan Obo REE ore deposit, Inner Mongolia, China YUAN ZHONGXIN, BAI G E a n...Abstract--Geotectonically, the Bayan Obo deposit is located on the northern margin of the North China platform. When...When the Proterozoic Bayan Obo Group was formed, the area was probably a rift tectonic environment. Dolomite...rock (or host rock) of the orebody of the Bayan Obo REE deposit, shows a distinct stratified structure and...ore) isochron age of the Main orebody of the Bayan Obo deposit is 1.58 Ga, and the Sm-Nd model age is 1.61 |  | | Journal (article/letter/editorial) | | METASOMATITES AT THE BAY AN OBO RARE EARTH DEPOSIT, INNER MONGOLIA, CHINA D. O. Ontoyev a a Institute...METASOMATITES AT THE BAY AN OBO RARE EARTH DEPOSIT, INNER MONGOLIA, CHINA, International Geology Review...METASOMATITES AT THE BAY AN OBO RARE EARTH DEPOSIT, INNER MONGOLIA, CHINA D. O. Ontoyev1 Downloaded by...rare earth elements that make Bayan Obo the world's largest rare earth deposit are contained mostly in fluorocarbonate...entire Bayan Obo deposit. At the eastern end of the Bayan Obo iron-fluorine-rare-earth deposit, in the |  | | Report (issue) | | CAMEROON CANADA CENTRAL AFRICAN REPUBLIC CHAD CHILE CHINA COLOMBIA CONGO COSTA RICA CÔTE D’IVOIRE CROATIA...MARSHALL ISLANDS MAURITANIA MAURITIUS MEXICO MONACO MONGOLIA MONTENEGRO MOROCCO MOZAMBIQUE MYANMAR NAMIBIA...1. 5.2. 5.3. 5.4. 6. DESCRIPTION OF THORIUM DEPOSIT TYPES AND EXAMPLES ........... 8 4.1.1. Carbonatite....................................... 60 6.6.2. China .................................................................................... 79 6.6.10. Mongolia ............................................. |  | | Journal (article/letter/editorial) | | North American REE have come from a carbonatite deposit at Mountain Pass, California, and most of the world’s...declined substantially due to competition from China and to environmental constraints. REE are presently...were made from stockpiles in recent years. Chevron Mining, however, restarted extraction of selected REE...ultrapotassic alkaline association of the Mountain Pass deposit suggest a different source than that of most other...recently discovered REE deposit in North America is the Hoidas Lake vein deposit, Saskatchewan, a small |  | | Report (issue) | | ............................................O4 China..............................................................................................O7 Deposit Types......................................................O10 O3. Active rare-earth mines, by deposit type.............................................reported estimates of their REE resources, by deposit type. ...........................................0.03527 0.03215075 32.15075 2.205 1.102 0.9842 Deposit grade 0.0291667 Pressure 10 10,000 Density 62.4220 |  | | Journal (article/letter/editorial) | | the present paper, with the exception of the Bayan Obo carbonatite, I have used examples of anorogenic...controversial Bayan Obo in northern China and the carbonatites of the Mianning–Dechang belt in SW China. It is...Australia (Mount Weld and Gifford complex) and China (Bayan Obo and the carbonatites of the Mianning–Dechang...apatite, zircon, allanite, titanite, chevkinite and thorite. Alteration minerals include chlorite, epidote...Age data from Brandberg, Erongo, Gifford Creek, Bayan Obo and Maoniuping. Igneous Cx Rock/mineral dated |  | Franchini, M., Lira, R., Meinert, L., Rios, F. J., Poklepovic, M. F., Impiccini, A., Millone, H. A. (2005) Na-Fe-Ca Alteration and LREE (Th-Nb) Mineralization in Marble andGranitoids of Sierra de Sumampa, Santiago del Estero, Argentina. Economic Geology, 100 (4) 733-764 doi:10.2113/gsecongeo.100.4.733 | Journal (article/letter/editorial) | | Fe-LREE-Nb deposit Bayan Obo and other hydrothermal LREE deposits hosted in carbonatites of China. Introduction...carbonatites, particularly the large Bayan Obo deposit in China (Mariano, 1989a). Two districts with...Argentina (Fig. 1A): (1) The Rodeo de los Molles deposit, located in the Oriental Pampean Ranges of San...therein). The Rodeo de los Molles LREE and Th deposit is hosted in the Las Huertitas biotitic monzogranite...Molles occurs in the fenitized monzogranite. The deposit has been only partially explored: ~12 percent of |  | | Journal (article/letter/editorial) | | 86–94. REE Minerals in Carbonatites of the Arshan Deposit, Western Transbaikalian Region K. B. Bulnaev and...fault-line REE-bearing carbonatites of the Arshan deposit were described for the first time twenty years...fault-line REE-bearing carbonatites of the Arshan deposit were first described by Bulnaev (1985, 2000). The...phenocrysts. Bastnaesite in carbonatites of the Arshan deposit is fractured and occurs as fine-grained intergrowths...mineral composition of carbonatites from the Arshan deposit is rather complex. Along with predominant fine- |  | Dietzel, Christian A.F., Kristandt, Tim, Dahlgren, Sven, Giebel, R. Johannes, Marks, Michael A.W., Wenzel, Thomas, Markl, Gregor (2019) Hydrothermal processes in the Fen alkaline-carbonatite complex, southern Norway. Ore Geology Reviews, 111. 102969 doi:10.1016/j.oregeorev.2019.102969 | Journal (article/letter/editorial) | | is the biggest carbonatite-related REE and Th deposit in Europe. The alkaline silicate rocks and carbonatites...growing importance for the industrialized world. When China (the world’s main REE supplier) declared in 2009...the formation of economic REE deposits (e.g., Bayan Obo, Bachu, Bear Lodge, Cheng et al., 2018; Kanazawa...Historical mining for hematitic iron ores from the “red-rocks” (rødberg) at the Gruveåsen mining hill took...loose blocks of silicified rødberg from former mining operations were collected and one large Th-rich |  | | Report (issue) | | for rare earth metals have risen dramatically. Mining companies and the federal government are renewing...Lewiston Vein/Lode REE Deposit 12 Placer REE Deposit Mineral Hill District Districts with associated...Creek 93 95 Salmon Lemhi Pass Blackbird Co District McCall Challis 95 Yellowstone N. P. Weiser...Falls 95 75 93 26 15 84 Pocatello Phosphate District 86 15 30 Twin Falls 93 84 Figure 1: Map of...rare earths, tantalum, thorium, and vanadium). Mining of rare earths in the U.S. ended in 1998 when the |  | Liu, Yan, Chakhmouradian, Anton R., Hou, Zengqian, Song, Wenlei, Kynický, Jindřich (2019) Development of REE mineralization in the giant Maoniuping deposit (Sichuan, China): insights from mineralogy, fluid inclusions, and trace-element geochemistry. Mineralium Deposita, 54 (5) 701-718 doi:10.1007/s00126-018-0836-y | Journal (article/letter/editorial) | | mineralization in the giant Maoniuping deposit (Sichuan, China): insights from mineralogy, fluid inclusions...eastern Tibet (Sichuan, China). In the currently mined central part of the deposit (Dagudao section), REE...of hydrothermal activity. Keywords Maoniuping deposit . Mianning-Dechang metallogenic belt . REE mineralization...Sciences, Beijing 100037, People’s Republic of China 2 State Key Laboratory for Mineral Deposits Research...University, Nanjing 210093, People’s Republic of China 3 Department of Geological Sciences, University |  | | Journal (article/letter/editorial) | | examples as Mountain Pass, California, and Bayan Obo, Inner Mon golia), describes their geologic setting...rare earth concentrates; the ores at the Bayan Obo deposit (China) produce only magnetite and bastnaesite...recent decades in the USSR and abroad (the USA, China, Mongolia, Vietnam, Afghanistan, Malawi, and elsewhere)...2013 Deposit and source South Siberia, SSSR [6] North Siberia, SSSR [11] Mushugay Khuduk, Mongolia [2]...1966) Ondakorume, Namibia Okurusu, Namibia Bayan Obo, China [6] Amba Dongar, India (Frolov, 1975) Ravalli |  | | Journal (article/letter/editorial) | | Resources, China University of Geosciences Beijing, 29 CE P Xueyuan Road, Beijing 100083, China AC *Corresponding...Asian Orogenic Belt (CAOB), and the Tarim-North China cratonic blocks. This is followed by a discussion...associated with zoned mafic-ultramafic intrusions in NW China, and alkaline-peralkaline complexes, carbonatites...encompassing Siberia (sensu lato), NW and NE China and Mongolia, north of and excluding the Alpine-Himalayan...fold belts (Baikalides, Yana-Chukotka), the North China (SinoKorean)-Tarim cratonic blocks and the Altaids |  | | Journal (article/letter/editorial) | | Majesty the Queen in Right of Canada 2014 Abstract China started to produce rare earth elements (REEs) in...government-created disparity between prices within China and the rest of the world. Industrialized countries...Because of rapid price increases of REE outside of China, we have witnessed a world-scale REE exploration...phosphate fertilizer production, U processing, mining of Ti-Zr-bearing placers, and exploitation of Olympic...deposits and one peralkaline intrusion-related deposit. The ideal REE development targets would be located |  | | Book | | Main Tectonic Events and Metallogeny of the North China Craton Springer Geology More information about...Main Tectonic Events and Metallogeny of the North China Craton 123 Editors Mingguo Zhai Institute of...Geophysics Chinese Academy of Sciences Beijing China Taiping Zhao Guangzhou Institute of Geochemistry...Guangzhou China Yue Zhao Institute of Geomechanics Chinese Academy of Geological Sciences Beijing China ISSN...Metallogenic Epochs to Key Geological Events in the North China Craton: An Example for Secular Changes in the Evolving |  | | Journal (article/letter/editorial) | | inclusions in the Maoniuping deposit, Sichuan Province, southwestern China Xu Zheng, Yan Liu PII: DOI:...inclusions in the Maoniuping deposit, Sichuan Province, southwestern China, Ore Geology Reviews (2019)...inclusions in the Maoniuping deposit, Sichuan Province, southwestern China Xu Zheng1, 2, Yan Liu2 * 1...Mineral Resources, China University of Geosciences, Beijing 100083, People’s Republic of China 2. Key Laboratory...Sciences, Beijing 100037, People’s Republic of China * Corresponding author: Yan Liu E-mail address: |  | | Journal (article/letter/editorial) | | is host to the Ashram Rare Earth Element (REE) Deposit, occurs within the Eldor Carbonatite Complex, Québec...The principal REE-bearing minerals of the Ashram Deposit are monazite-(Ce) and monazite-(Nd), with lesser...A-type granitoids. The mineralogy of the Ashram Deposit, compared to that of other carbonatites associated...pyrochlore, and Srbearing carbonates. The Ashram Deposit is considered to be a late-magmatic-to-hydrothermal...antecedents Key words: carbonatite, Ashram Deposit, REE-deposit, monazite, xenotime, fluorite, Mg-Fe carbonates |  | | | | occurring in jadeitites from Itoigawa, Niigata Prefecture, Japan, is the Sr-Zr analogue of perrierite (Miyajima...a Sc-bearing perrierite from the Bayan Obo deposit, Inner Mongolia, which has a Sc2O3 content of 3.26...perrierite from the Apatitovoye ore deposit in the Mushugay field, southern Mongolia, containing a large CaO content...alkali feldspar, ilmenite, titanite, monazite, thorite, allanite and zircon. The perrierite occurs in...images. Associated minerals are allanite, monazite, thorite and a REE oxide. to 1 cm in length, in a quartz-rich |  | | Journal (article/letter/editorial) | | REE Deposits: A Case Study of the Weishan REE Deposit, China Yu-heng Jia 1,2 and Yan Liu 2,3, * 1 2 3 *...Guilin University of Technology, Guilin 541004, China; yuhengjia@glut.edu.cn Key Laboratory of Deep-Earth...Academy of Geological Science, Beijing 100037, China Southern Marine Science and Engineering Guangdong...Guangdong Laboratory (Guangzhou), Guangzhou 511458, China Correspondence: ly@cags.ac.cn Received: 22 August...carbonatite-related rare earth element (REE) deposit in China contains both high- and low-grade REE mineralization |  | | Report (issue) | | CAMEROON CANADA CENTRAL AFRICAN REPUBLIC CHAD CHILE CHINA COLOMBIA CONGO COSTA RICA CÔTE D’IVOIRE CROATIA...MARSHALL ISLANDS MAURITANIA MAURITIUS MEXICO MONACO MONGOLIA MONTENEGRO MOROCCO MOZAMBIQUE MYANMAR NAMIBIA...production, including exploration, resource assessment, mining and processing, markets and economics (of the main...................... 26 FEASIBILITY STUDIES ON MINING AND PROCESSING ............................ 27... 7.4. 7.5. 7.6. 8. EVALUATION OF A PLACER DEPOSIT ........................................... 29 |  | | Journal (article/letter/editorial) | | Occurrences of Niobium and Tantalum Mineralization in Mongolia Jaroslav Dostal 1, * and Ochir Gerel 2 1 2 *...Occurrences of Niobium and Tantalum Mineralization in Mongolia. Minerals 2022, 12, 1529. https:// doi.org/10...Technology, Baga Toiruu 34, Ulaanbaatar 14191, Mongolia Correspondence: jarda.dostal@smu.ca Abstract:...the most common Ta- and Nb-bearing minerals. In Mongolia, primary niobium and tantalum mineralization includes...mainly mineralization of Sn, W, Ta, Li, and Nb. Mongolia hosts several promising occurrences of both types |  | Nedosekova, Irina, Vladykin, Nikolay, Udoratina, Oksana, Belyatsky, Boris (2021) Ore and Geochemical Specialization and Substance Sources of the Ural and Timan Carbonatite Complexes (Russia): Insights from Trace Element, Rb–Sr, and Sm–Nd Isotope Data. Minerals, 11 (7) 711 doi:10.3390/min11070711 | Journal (article/letter/editorial) | | with carbonatites: Mountain Pass (USA) and Bayun-Obo (China) provide more than half of the world production...this type of carbonatite: the giant Nb-REE Tomtor deposit (Yakutia); large Nb–P deposits in Eastern Siberia—White...(East Sayan province); the Nb–REE Chuktukonskoe deposit (Chadobetsky Uplift); the Nb–Ta–P Neske-Vaara (Kola...Maoniuping (Qinling and Mianning-Dechang orogenic belts, China [11,17–19]). In the Russian territory, such complexes...Russia where mining was carried out. The carbonatite origin and associated rare metal deposit sources are |  | Giebel, R. Johannes, Gauert, Christoph D.K., Marks, Michael A.W., Costin, Gelu, Markl, Gregor (2017) Multi-stage formation of REE minerals in the Palabora Carbonatite Complex, South Africa. American Mineralogist, 102 (6) 1218-1233 doi:10.2138/am-2017-6004 | Journal (article/letter/editorial) | | carbonatites and phoscorite (blue field) of the Loolekop deposit. Note: Main phases in bold, minor phases in plain...pit level (random sampling—upper 600 m of the deposit; Bulakh, personal communication) and provided only...for carbonatites and phoscorites of the Loolekop deposit. Detailed descriptions of REE minerals (marked...main calcite stage, Deposit item AM-17-66004, Supplemental Material and Table 2. Deposit items are free to...KMg3(Si3Al)O10(OH,F)2 serpentine srp Mg6Si4O10(OH)8 thorite thr ThSiO4 OXIDES: anzaite-(Ce) anz (REE)4FeTi6O18(OH |
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