Tomtor (Record #146) rare-earth element deposit in Russia

Tomtor

Carbonatite with residual enrichment rare earth element deposit in , Russia

Geographic location

Country	Russia
Geographic location:	116.583333, 71
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Location references

Kogarko, L.N., Kononova, V.A., Orlova, M.P., and Wooley, A.R., 1995, Alkaline rocks and carbonatites of the world; Part two, Former USSR: London, Chapman and Hall, 226 p.

Geologic characteristics

Deposit type	Carbonatite with residual enrichment
Age of deposit	Early to Middle Paleozoic
REE minerals	pyrochlore florencite monazite gorceixite goyazite rhabdophane xenotime bastnäsite
Ore minerals	pyrochlore apatite magnetite rutile columbite ilmenorutile pyrite vermiculite carbonate-fluorapatite scandium
Gangue minerals	calcite dolomite phlogopite kaolinite pyroxene
Host rock types	weathered carbonatite dolomite and calcite carbonatite nepheline syenite

Nearby scientific information

Geologic map unit	116.58333333333, 71
Other databases	Find additional scientific data near this location

Economic information

Status	REE-Nb resource
Resource estimates	large resource with 8-31% REO, 3-8% Nb2O5

References for resource estimates

Pell, 1996/1995

Comments

300 sq km massif. Weathered carbonatite contains ama 37% RE oxides.

Bibliographic references

Harben, P.W., and Kuzvart, M., 1996, Industrial minerals - a global geology: London, Industrial Minerals Information Ltd., p. 330-340.
Kogarko, L.N., Kononova, V.A., Orlova, M.P., and Wooley, A.R., 1995, Alkaline rocks and carbonatites of the world; Part two, Former USSR: London, Chapman and Hall, 226 p.
Kravchenko, S.M., and Pokrovsky, B.G., 1995, The Tomtor alkaline ultrabasic massif and related REE-Nb deposits, northern Siberia: Economic Geology, v. 90, no. 3, p. 676-689.
Pell, Jennifer, 1996, Chapter 13- Mineral deposits associated with carbonatites and related alkaline igneous rocks, in Mitchell, R.H., ed., Undersaturated alkaline rocks: Mineralogy, petrogenesis, and economic potential: Mineralogical Association of Canada Short Course 24, p. 271-310.