Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Rare elements occurring in mica (in Russian)

Journal Article · · Zap. Vses. Mineral. Obshchest., v. 101, no. 6, pp. 346-360
OSTI ID:4407572
;
Micas of different genetic formations concentrate Li, Rb, Cs, Be, Ba, Ti, Nb, Ta, Zr, REs, U, and Th. In order to detemnine the form of these elements in mica, studies were made on muskovite, biotite, floganite, and lepidolite from granites, pegmatites metasomatites, alkali rocks, and carbonates of the Ukraine, Karelia, the Kolski Peninsula, Urals, and Siberia. Microinclusions of rockforming and accessory minerals of Ti, Nb, Ta, Zr, rare earths, U, and Th were found, the same as in the containing micas of rocks. The predominance of the same group of rare elements in inicas as in the enclosing rocks and their minerals was established. The closeness of the Nb/Ta, Zr/Hf, and U/Th ratios and of the rare earths in micas and the associated basic mineral carriers of these elements was demonstrated. The differential nature of the occurrence of rare elements found in micas was assumed; Li, Rb, Cs, Sr, and Ba and partially Be and Ti enter into the structure of micas; isomorphically substituted K, Mg, Al, Si, U, Th, rare earths, Zr, Ta, and Nb and partially Ti are present in micas, principally as microinclusions of the typical minerals of these elements. The total composition of micas reflects the geochemical specificity of the rocks enclosing them, but the form of the occurrence of the individual rare elements should be studied by special methods. (trans-auth)
Research Organization:
Inst. of Mineralogy and Geochemistry of the Rare Elements, Moscow
NSA Number:
NSA-29-002626
OSTI ID:
4407572
Journal Information:
Zap. Vses. Mineral. Obshchest., v. 101, no. 6, pp. 346-360, Journal Name: Zap. Vses. Mineral. Obshchest., v. 101, no. 6, pp. 346-360; ISSN ZVMOA
Country of Publication:
Country unknown/Code not available
Language:
Russian

Similar Records

Geochemical, oxygen, and neodymium isotope compositions of metasediments from the Abitibi greenstone belt and Pontiac Subprovince, Canada: Evidence for ancient crust and Archean terrane juxtaposition
Journal Article · Sun Jan 31 23:00:00 EST 1993 · Geochimica et Cosmochimica Acta; (United States) · OSTI ID:6669344
URANIUM AND THORIUM IN ALKALINE ROCKS OF THE URAL
Journal Article · Sun Dec 31 23:00:00 EST 1961 · Geokhimiya (U.S.S.R.) For English translation 1956-63 see Geochemistry (USSR) · OSTI ID:4776119
ON THE DISTRIBUTION OF RARE ELEMENTS IN MINERALS OF RARE-METAL GRANITE PEGMATITES
Journal Article · Tue Dec 31 23:00:00 EST 1957 · Geokhimiya (U.S.S.R.) For English translation 1956-63 see Geochemistry (USSR) · OSTI ID:4213503

Related Subjects

*BARIUM-- ABUNDANCE
*BERYLLIUM-- ABUNDANCE
*CESIUM-- ABUNDANCE
*LITHIUM-- ABUNDANCE
*MICA-- CHEMICAL COMPOSITION
*NIOBIUM-- ABUNDANCE
*RARE EARTHS-- ABUNDANCE
*RUBIDIUM-- ABUNDANCE
*TANTALUM-- ABUNDANCE
*THORIUM-- ABUNDANCE
*TITANIUM-- ABUNDANCE
*URANIUM-- ABUNDANCE
*ZIRCONIUM-- ABUNDANCE
N44100* --Environmental & Earth Sciences--Minerals & Ores