Khaldzan Buragtag massif, Altai Mts, Hovd Aimag (Khovd Aimag), Mongolia

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массив Халдзан Бурэгтэг

Complex tantalum-niobium-zirconium-rare earth mineralization spatially and genetically associated with a multiple phase intrusion of alkaline granitoids.
The massif is formed by two outcrops: Concentric Southern (with top on Khaldzan Buregtei Ula Mt) and garpolite like Northern one (with top on Ulyn Khuren Mt). In shape massif resemble "!". Southern outcrop includind Khaldzan Buregtei Ta-Nb-Zr-REE deposit in agpaitic alcaline granites of V&VII intrusive phases. Northern outcrop composed mainly from nordmarkites of I intrusive phase and including Tsakhirin Khuduk Y-Zr-Nb deposit in exocontact metasomatic zone.

References

- Kartashov P.M., Voloshin A.V., Pakhomovsky Ya.A. (1992) On plumbopyrochlore from Western Mongólia. Doklady Akademii Nauk SSSR, 322, p. 1137-1140. (in Rus.).
- Kovalenko V.I., Tsaryeva G.M., Goreglyad A.V., Yarmolyuk V.V., Troitsky V.A., Hervig R.L., Farmer, G.L., (1995) The peralkaline granite-related Khaldzan-Buregtey rare metal (Zr, Nb, REE) deposit, western Mongolia - ECONOMIC GEOLOGY, v. 90, p. 530–547.
- Kartashov, P.M., Mokhov, A.V. and Kovalenko, V.I. (1998) Rare earth Sr-pyrochlore from Western Mongolia: The first find in association with alkalic granites. Doklady Earth Sciences, 359, 510-513.

Mineral List

Mineral list contains entries from the region specified including sub-localities

Actinolite Aegirine Aenigmatite Aeschynite-(Ce) Aeschynite-(Y) Agardite-(Y) Albite Allanite-(Ce) Allanite-(Nd) Aluminocerite-(Ce) Anatase Anglesite Arfvedsonite Armalcolite Arsenic Arsenopyrite Baryte Bastnäsite-(Ce) Bavenite Bazirite β-Fergusonite-(Y) Brannerite Britholite-(Ce) Britholite-(Y) Calciocatapleiite Calciogadolinite-(Y) Calcite Carminite Cerianite-(Ce) Cerite-(Ce) Cerussite

Chalcopyrite Chernovite-(Y) Chevkinite-(Ce) Clinochlore Coffinite Columbite-(Fe) Copper Cornwallite Diopside Elpidite Epidote Eudialyte Fayalite Fergusonite-(Y) Ferriallanite-(Ce) (TL) Fersmite Fluorapatite Fluorite var: Strontian Fluorite Fluorkenopyrochlore (TL) Fluornatropyrochlore (TL) Fluoro-ferroleakeite Gadolinite-(Y) Galena Genthelvite Gerenite-(Y) Gittinsite Gold Hedenbergite Hematite Hingganite-(Ce)

Hingganite-(Y) Hydroxylapatite Hydroxylbastnäsite-(Ce) Ilmenite Ilvaite Kainosite-(Y) Katophorite Lead Löllingite Magnesite Magnetite Malachite Microcline Milarite Molybdenite Monazite-(Ce) Narsarsukite Nontronite Orthoclase Percleveite-(Ce) Polylithionite Prehnite Pyrite Pyrochlore Group var: Ceriopyrochlore (of Hogarth 1977) var: Plumbopyrochlore (of Skorobogatova et al) var: Strontiopyrochlore (of Hogarth 1977) var: Yttropyrochlore (of Hogarth 1977) Pyrrhotite Quartz Riebeckite

Romanite Rutile var: Ilmenorutile Senaite Sphalerite Stilpnomelane Sulphur Synchysite-(Ce) Synchysite-(Y) Tennantite Thorite var: Ferrithorite Tin Titanite Tuhualite 'Unnamed (HBU UK-1)' 'Unnamed (HBU UK-2)' 'Unnamed (HBU UK-3)' 'Unnamed (HBU UK-4)' 'Unnamed (HBU UK-5)' 'Unnamed (HBU UK-6)' Wilkinsonite Willemite Wulfenite Xenotime-(Y) Yttrialite-(Y) Zinc Zircon

172 entries listed. 106 valid minerals. 3 type localities (valid minerals).

Localities in this Region

Mongolia Hovd Aimag (Khovd Aimag) Altai Mts Khaldzan Buragtag massif Khatuugiin thorite occurrence Mount Ulyn Khuren Neprimetnyi pegmatite Pseudomorphosed pegmatite Tat'yana pegmatite Tsakhirin Khuduk Y-Zr-Nb deposit