Geochemical constraints on the genesis of the Bayan Obo Fe–Nb–REE deposit in Inner Mongolia, China

Yang, Xiaoyong; Sun, Weidong; Zhang, Yuxu; Zheng, Yong‐Fei

doi:10.1016/j.gca.2008.12.003

Cited by 124 publications

(44 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It is often associated with ore deposits (Bhushan and Kumar, 2013;Foley et al, 2013;Nikiforov et al, 2014), which may be formed directly from subducted carbonates or reactivated by subduction processes (Yang et al, 2009;Ling et al, 2013b). In this volume, carbonatite in South Qinling orogenic belt was attributed to the Early-Middle Triassic recycled Mianlue oceanic crust.…”

mentioning

confidence: 89%

The Subduction Factory: Geochemical perspectives

Sun

Teng

Niu

et al. 2014

Geochimica et Cosmochimica Acta

Self Cite

View full text Add to dashboard Cite

mentioning

confidence: 89%

The Subduction Factory: Geochemical perspectives

Sun

Teng

Niu

et al. 2014

Geochimica et Cosmochimica Acta

Self Cite

View full text Add to dashboard Cite

“…The Bayan Obo district, Inner Mongolia Autonomous Region, is located at the northern margin of the North China Craton (NCC), neighboring the south edge of the Central Asian Orogenic Belt (Ling et al, 2013;Yang et al, 2009) (Fig. 1).…”

Section: Geological Background and Samplesmentioning

confidence: 99%

“…The REE deposit is hosted in the H8 dolomite (IGCAS, 1988;Lai et al, 2012;Ling et al, 2013;Y.L. Liu et al, 2008;Yang et al, 2009) (Fig. 1).…”

Section: Geological Background and Samplesmentioning

confidence: 99%

“…1), is the largest light rare earth element (REE) deposit in the world, the largest niobium (Nb) and thorium (Th) deposit, and a major iron (Fe) deposit in China (Chao et al, 1992;Kynicky et al, 2012;Lai and Yang, 2013;Ling et al, 2013;Y.L. Liu et al, 2008;Tu, 1998;Yang and Le Bas, 2004;Yang et al, 2009;Yuan et al, 1992). Granitoids are widespread near the Bayan Obo deposit (Fig.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The Permian–Triassic granitoids in Bayan Obo, North China Craton: A geochemical and geochronological study

Ling

Zhang

et al. 2014

Lithos

Self Cite

View full text Add to dashboard Cite

“…Os depósitos de ETR em complexos carbonatíticos ocorrem principalmente por atividade hidrotermal com ou sem concentração supergênica subseqüente (Imbernon et al, 1994;Ribeiro et al, 2005b;Yang et al, 2009 (Yang et al, 2009). A mineralização de bastnaesita-parisita em Mountain Pass, Estados Unidos, é a segunda maior do mundo e um caso raro de concentração de minerais primários de ETR em carbonatitos evoluídos (Mariano, 1989).…”

Section: Carbonatíticosunclassified

Geologia e geometalurgia dos minérios de fosfato na base do manto de intemperismo da mina do Barreiro, Araxá

Grasso¹

View full text Add to dashboard Cite

decreasing ore grades and decline of mass recovery, which led to significant negative impacts on the production of phosphate concentrate. The operations at Araxá have a growing need to process ores from the base of weathering profile in order to extend the life of mine. This type of ore has characteristics strongly dependent on the fresh-rock protoliths (proto-ores). This geological study started with the recognition of protoliths. There is a close association between bebedourite, phoscorite and carbonatite rocks, which were classified into macrogroups according to the main associations observed in the field and in drill core. The study of the mineralogical evolution was carried out on each protolith macrogroups at different horizons within the base of the weathering profile. The altered rock has a complex assembly of primary minerals, and no significant quantities of supergene minerals. The lower micaceous ore is characteristically free of carbonates and has greater amounts of supergene minerals such as anatase, goethite, quartz and interstratified phyllosilicates. In the upper micaceous ore, diopside and phlogopite were completely eliminated and the assembly of supergene minerals becomes more expressive. The geometallurgical behavior of the studied ores is heavily dependent on their protoliths and weathering horizons. Multivariate statistical analyses of principal components and linear regression were used to elaborate geometallurgical models. The geometallurgical behavior, once considered in mine planning, subsidizes the process engineering in the quest for improvements or operational and ore-processing adjustments for achieving better mass and P 2 O 5 recoveries. The geometallurgical models were applied in a three dimensional block model, so that the geometallurgical variables and their variations become spatially defined and can be used in mining engineering, for results best suited to phosphate concentrates and fertilizers production plans. x Figura 2.10: Características texturais e mineralógicas microscópicas dos dolomita carbonatitos. A) Amostra SC06 52 m: carbonato euédrico e apatita grossa, ambos dispersos na rocha, polarizadores cruzados; B) Amostra SC06 52 m: detalhe de um cristal cumulus de tetraferriflogopita associado à magnetita intercumulus, polarizadores paralelos; C) Amostra SC06 52 m: cristais de apatita com núcleos diferentes das bordas, e magnetita cumulus, polarizadores cruzados; D) Amostra SC06 52 m: magnetita cumulus e pirocloro zonado, polarizadores paralelos; E) Amostra CMA-BAR-DH151 65. (Ribeiro, 2008;Cordeiro, 2011b;Barbosa, 2012b;Palmieri, 2011) e o campo dos cumulados nelsoníticos de Serra Negra em roxo (Grasso, 2010 Figura 3.4: Imagens eletrônicas por elétrons retroespalhados dos minerais e suas texturas em amostras de testemunhos de sondagem do macrogrupo de protolito BEB/DC. A) Associação textural entre anatásio e estroncianita -amostra MB59 71.40 a 84.40 m, rocha alterada; B) gorceixita e apatita com textura fina e porosa -amostra MB59 62.5 a 71.40 m, rocha alterada; C) Prová...

show abstract

Geochemical constraints on the genesis of the Bayan Obo Fe–Nb–REE deposit in Inner Mongolia, China

Cited by 124 publications

References 42 publications

The Subduction Factory: Geochemical perspectives

The Subduction Factory: Geochemical perspectives

The Permian–Triassic granitoids in Bayan Obo, North China Craton: A geochemical and geochronological study

Geologia e geometalurgia dos minérios de fosfato na base do manto de intemperismo da mina do Barreiro, Araxá

Contact Info

Product

Resources

About