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Academic Journal
Plagioclasites from chromite-bearing ultramafic rocks of the Rai-Iz massif
N. V. Vakhrusheva, K. S. Ivanov, A. E. Stepanov, S. P. Shokalsky, A. N. Azanov, V. V. Hiller, P. B. Shiryayev
Литосфера, Vol 0, Iss 5, Pp 134-145 (2016)
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| Title | Plagioclasites from chromite-bearing ultramafic rocks of the Rai-Iz massif |
|---|---|
| Authors | N. V. Vakhrusheva, K. S. Ivanov, A. E. Stepanov, S. P. Shokalsky, A. N. Azanov, V. V. Hiller, P. B. Shiryayev |
| Publication Year |
2016
|
| Source |
Литосфера, Vol 0, Iss 5, Pp 134-145 (2016)
|
| Description |
The corundum-bearing and without-corundum plagioclasites from chromite-bearing ultramafic rocks of Rai-Iz massif were studied. Chemical composition of the rock-forming minerals and rock geochemical characteristics was determined. The U-Pb zircon dating (using SHRIMP-II microprobe) of plagioclasites yielded an age of 398 ± 3 and 404.4 ± 2.8 Ma - Lower-Middle Devonian boundary. At that time on the background of powerful collision it occurred a deep metamorphic processing of Rai-Iz ultramafic rocks resulting in forming of high-chromium chromite ore and separation of vein-series represented by substantially plagioclase rocks with corundum (ruby) mineralization.
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| Document Type |
article
|
| Language |
English
Russian |
| Publisher Information |
A.N. Zavaritsky Institute of Geology and Geochemistry, 2016.
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| Subject Terms | |
