CANADIAN AND WORLD MINERAL DEPOSIT DATABASES
Geological Survey of Canada


Deposit group number Country Location Names Commodities
3 China (Inner Mongolia) 41.46.56 N -- 109.56.47 E Bayan Obo Fe; REE oxides; Nb; fluorite
 
Database name: World Fe-oxide+/-Cu-Au-U (IOCG) deposits
Compilers: Sunil S. Gandhi
Release date: 2015-03-03
   
Deposit group name(s): Bayan Obo
Political location(s): China; Province or state: Inner Mongolia
Deposit clan (type): Bayan Obo-type
Deposit (sub) types: intrusion-related; alkaline intrusion related; country rock (dolomitic)-hosted; Reference: Hitzman, M. W.; Oreskes, N.; Einaudi, M. T., 1992: Geological Characteristics and Tectonic Setting of Proterozoic Iron Oxide (Cu-U-Au-REE) Deposits; Precambrian Research, Volume 58, p. 241 - 287
Geologic province: Sino-Korean Craton
Geologic subprovince: Northern Marginal Belt
Geologic district: Permian collision zone
Commodities: Fe; REE oxides; Nb; fluorite
Geological ages: Early Mesoproterozoic (host rocks)
Late Mesoproterozoic (related magmatics)
Permian (post-mineralization rocks)
Early Mesoproterozoic (country rocks)
Late Archean (country rocks)
Carboniferous (country rocks)
Tertiary (country rocks)
Tectonic setting: continental marginal rise-slope-intracratonic; divergent; Formal name: North China craton margin (host rocks)
epicontinental rift; divergent; Formal name: Calcitic Carbonatitic dykes (related igneous rocks)
Coincident features: lithology (carbonate)
breccia
Regional tectonic structure: fault Tectonic structure name: Kuanggou Fault
Host rocks: (1) sedimentary; carbonate (Permian folding and thrusting); Magma series/sedimentary package/metamorphic group: platform-shelf; Depositional setting: ensialic rift; Metamorphic grade: lower greenschist
Individual lithologies:dolostone
limestone
Host rock stratigraphy:Bayan Obo Group
Related igneous rocks: (1) intrusive; carbonatite-lamprophyre association (dykes); Magma series: alkaline; Depositional setting: hypabyssal
Individual lithologies:bostonite (dykes)
carbonatite (calcitic dykes)
References:
Barton, M. D.; Johnson, D. A., 1996
Evaporitic-Source Model for Igneous-Related Fe Oxide-(REE-Cu-Au-U) Mineralization
Geology, Volume 24, p. 259 - 262

Chao, E. C. T. ; Back, J. M.; Minkin, J. A.; Tatsumoto, M.; Wang, J.; Conrad, J. E.; McKee, E. H.; Hou, Z.; Meng, Q.; Huang, S., 1997
The Sedimentary Carbonate-Hosted Giant Bayan Obo REE-Fe-Nb Ore Deposit of Inner Mongolia, China: A Cornerstone Example for Giant Polymetallic Ore Deposits of Hydrothermal Origin
Bulletin, United States Geological Survey, United States Geological Survey, Publication code 2143, 65 p.

Chao, E. T. C.; Back, J. M.; Minkin, J. A.; Ren, Y. , 1992
Host-Rock Controlled Epigenetic, Hydrothermal Metasomatic Origin of the Bayan Obo REE-Fe-Nb Ore Deposit, Inner Mongolia, P.R.C.
Applied Geochemistry, Volume 7, p. 443 - 458

Conrad, J. E.; McKee, E. H., 1992
40Ar/39Ar Dating of Vein Amphibole from the Bayan Obo Iron-Rare Earth Element-Niobium Deposit, Inner Mongolia, China: Constraints on Mineralization and Deposition of the Bayan Obo Group
Economic Geology, Volume 87, p. 185 - 188

Drew, L. J.; Meng, Q., 1990
Geologic Map of the Bayan Obo Area
United States Geological Survey, I-Mao 2057, Scale 1:50000

Drew, L. J.; Meng, Q.; Sun, W., 1990
The Bayan Obo Iron-Rare Earth-Niobium Deposits, Inner Mongolia, China
Lithos, Volume 26, p. 43 - 65

Hitzman, M. W.; Oreskes, N.; Einaudi, M. T., 1992
Geological Characteristics and Tectonic Setting of Proterozoic Iron Oxide (Cu-U-Au-REE) Deposits
Precambrian Research, Volume 58, p. 241 - 287

Le Bas, M. J.; Keller, J.; Kejie, T.; Wall, F.; Williams, C. T.; Peishan, Z., 1992
Carbonatite Dykes at Bayan Obo, Inner Mongolia, China
Mineralogy and Petrology, Volume 45, p. 195 - 228

Le Bas, M. J.; Spiro, B.; Yang, X., 1997
Oxygen, Carbon and Strontium Isotope Study of the Carbonatitic Dolomite Host of the Bayan Obo Fe-Nb-REE Deposit, Inner Mongolia, N. China
Mineralogical Magazine, Volume 61, p. 531 - 541

Meng, Q.; Drew, L. J., 1992
Study on Oxygen and Carbon Isotopes and the Implicationfor Genesis of Bayan Obo Ore-Bearing Dolomite
Contributions to Geology and Mineral Resources Research, Volume 7, p. 46 - 54

Peishan, Z.; Kejie, T., 1986
Bayan Obo Mineralogy (In Chinese with English Summary)
Science Press, Beijing, China, 182 p.

Philpotts, J. A.; Tatsumoto, M.; Wang, K.; Fan, P-F., 1989
Petrography, Chemistry, Age and Origin of the Rare-Earth Iron Deposit at Bayan Obo, China, and Implications of Proterozoic Iron Ores in Earth Evolution
U. S. Geological Survey Circular, United States Geological Survey, Publication code 1053, 53 p.

Qiao, X.; Yao, P.; Wang, C.; Tan, L.; Zhu, S.; Zhou, S.; Zhang, Y., 1991
Sequence Stratigraphy and Tectonic Environment of the Chartai Group of Inner Mongolia
Acta Geologica Sinica, Volume 65, p. 1 - 14

Ren, Y.; Zhan, Y., 1994
Study on the Heat Events of Ore-Forming Bayan Obo Deposit (In Chinese with English Abstract)
Acta Geologica Sinica, Volume 1-2, p. 95 - 101

Smith, M. P.; Henderson, P., 1999
Fluid Inclusion Constraints on the Genesis of the Bayan Obo Fe-REE-Nb Deposit
in Mineral Deposits: Process to Processing (Volumes 1 and 2), Edited by Stanley, C. J., 5th Biennial SGA Meeting and 10th Quadrennial IAGOD Symposium/London/United Kingdom/22-25 Aug 1999, SGA and International Association for Genesis of Ore Deposits, A. A. Balkema/Rotterdam/Brrokfield/1999, 1475 p, p. 103 - 106

Smith, M. P.; Henderson, P. , 2000
Preliminary Fluid Inclusion Constraints on Fluid Evolution in the Bayan Obo Fe-REE-Nb Deposit, Inner Mongolia, China
Economic Geology, Volume 95, p. 1371 - 1388

Wu, C.; Yuan, Z.; Bai, G., 1996
Rare Earth Deposits in China
in Rare Earth Minerals: Chemistry, Origin and Ore Deposits, Edited by Jones, A. P.; Wall, F.; Williams, C. T., Mineralogical Society, Chapman and Hall, London, 7, 372 p, p. 281 - 310

Xie, Y. H.; Wang, Y. G.; Zhang, R. F., 1996
A Discovery of REE Minerals in Fluid Inclusions in the Bayan Obo REE-Fe-Nb Ore Deposit
Chinese Science Bulletin, Volume 41, p. 401 - 404

Yang, X.-M.; Yang, X.-Y.; Zheng, Y.-F.; Le Bas, M. J., 2003
A Rare Earth Element-rich Carbonatite Dyke at Bayan Obo, Inner Mongolia, North China
Mineralogy and Petrology, Volume 78, p. 93 - 110

Yuan, Z.; Bai, G.; Wu, C.; Zhang, Z.; Ye, X., 1992
Geological Features and Genesis of the Bayan Obo REE Deposit, Inner Mongolia, China
Applied Geochemistry, p. 429 - 442

Resource data:
Disclaimer - Reserves/Resource Data

Her Majesty the Queen in Right of Canada, represented by the Minister of Natural Resources (NRCan) does not warrant or guarantee the accuracy, completeness or fitness for any purpose of Reserve and Resource information (Data) contained in this database, including whether the Data is compliant with any securities regulations or standards, and NRCan does not assume any liability with respect to any damage or loss incurred as a result of the use made of the Data.

Resource and reserve figures are historical in nature. The Data source provided with each set of figures should be cited if the Data are re-reported.

Estimate date: 1990 ore - milled; Combined with production?: yes; Provisional entry?: yes; Resource category: probable reserve
Grade-commodity information:Fe: 35 percent
REE oxides: 6 percent
Nb: 0.13 percent
Weight-commodity information:Fe oxides: 1,500 million metric tons
REE oxides: 48 million metric tons
Nb: 1 million metric tons
Reference: Drew, L. J.; Meng, Q.; Sun, W., 1990: The Bayan Obo Iron-Rare Earth-Niobium Deposits, Inner Mongolia, China; Lithos, Volume 26, p. 43 - 65
Percent weights allocated to camp: 40.0%
Associated deposit(s): Bayan Obo Main Ore Body (396), Bayan Obo East Ore Body (397), Bayan Obo West-Central Ore Body 1 (398), Bayan Obo West-Central Ore Body 2 (399), Bayan Obo West-Central Ore Body 3 (400), Bayan Obo West-Central Ore Body 4 (401), Bayan Obo West Ore Body 1 (402), Bayan Obo West Ore Body 2 (403), Bayan Obo West Ore Body 3 (404), Bayan Obo West Ore Body 4 (405), Bayan Obo West Ore Body 5 (406), Bayan Obo West Ore Body 6 (407), Bayan Obo West Ore Body 7 (408), Bayan Obo West Ore Body 8 (409), Bayan Obo West Ore Body 9 (410), Bayan Obo West Ore Body 10 (411), Bayan Obo West Ore Body 11 (412)

Generated 2015-03-03 11:24:41 with GQuery -- 3.7 ADO (3.19..3.22 -- 2008-12-16)
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