Russian Mineralogical Society
200th Anniversary Meeting of the Russian Mineralogical Society
The composition and age of uraninite in de-siliconized pegmatites of the Lipovskoe vein field (Middle Urals)

RMS-DPI code:  2017-1-294-0
Scientific session:  6. Mineral diversity and evolution of mineral formation processes.
Author listing:  Khiller V.V., Erokhin Yu.V., Zakharov A.V.
Principal author:  Khiller Vera Vital\'evna
Language:  Russian
Abstract - Summary 
(short description):
The chemical composition and age of the accessory uraninite from the desilicated plagioclasites of the Lipovsky vein field is given in the work. According to chemical dating, uraninite showed 2 ages Upper Permian and Middle Triassic. In normal plagioclasites, uranium oxide yielded 257 6 Ma, and in tectonized 245 7 Ma. From this it follows that in the Upper Permian time, under the influence of the heat flux (most likely, with the introduction of lithic veins), the usual pegmatites lying in the ultrabasites were transformed into plagioclasites. In the Middle Triassic time, plagioclasites underwent secondary transformations (with associated tectonic movements) during the formation of young pegmatites of the Aduisky granite massif.
RMS-DPI code:  2017-1-294-0
Pages:  344-346
File of proceedings 
 111 K
Status:  printed
Accepted:  17/09/2017
Published on-line:  07/12/2017
Permanent address of publication:
Contact author(s):  Khiller, Vera Vital'evna

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printed on 28/09/2020