Plagioclasites from chromite-bearing ultramafic rocks of the Rai-Iz massif
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...
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A.N. Zavaritsky Institute of Geology and Geochemistry
2016
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ftdoajarticles:oai:doaj.org/article:3ce53538331d42bdb9eb93f491d0814f 2023-05-15T18:47:17+02:00 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 2016-10-01T00:00:00Z https://doaj.org/article/3ce53538331d42bdb9eb93f491d0814f EN RU eng rus A.N. Zavaritsky Institute of Geology and Geochemistry https://www.lithosphere.ru/jour/article/view/47 https://doaj.org/toc/1681-9004 https://doaj.org/toc/2500-302X 1681-9004 2500-302X https://doaj.org/article/3ce53538331d42bdb9eb93f491d0814f Литосфера, Vol 0, Iss 5, Pp 134-145 (2016) ультрамафиты плагиоклазиты полярный урал цирконы u-pb датирование возраст палеозой ultramafic rocks plagioclasites polar urals zircons u-pb dating age paleozoic Engineering geology. Rock mechanics. Soil mechanics. Underground construction TA703-712 article 2016 ftdoajarticles 2022-12-31T03:47:08Z 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. Article in Journal/Newspaper Полярный Урал Directory of Open Access Journals: DOAJ Articles |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English Russian |
topic |
ультрамафиты плагиоклазиты полярный урал цирконы u-pb датирование возраст палеозой ultramafic rocks plagioclasites polar urals zircons u-pb dating age paleozoic Engineering geology. Rock mechanics. Soil mechanics. Underground construction TA703-712 |
spellingShingle |
ультрамафиты плагиоклазиты полярный урал цирконы u-pb датирование возраст палеозой ultramafic rocks plagioclasites polar urals zircons u-pb dating age paleozoic Engineering geology. Rock mechanics. Soil mechanics. Underground construction TA703-712 N. V. Vakhrusheva K. S. Ivanov A. E. Stepanov S. P. Shokalsky A. N. Azanov V. V. Hiller P. B. Shiryayev Plagioclasites from chromite-bearing ultramafic rocks of the Rai-Iz massif |
topic_facet |
ультрамафиты плагиоклазиты полярный урал цирконы u-pb датирование возраст палеозой ultramafic rocks plagioclasites polar urals zircons u-pb dating age paleozoic Engineering geology. Rock mechanics. Soil mechanics. Underground construction TA703-712 |
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. |
format |
Article in Journal/Newspaper |
author |
N. V. Vakhrusheva K. S. Ivanov A. E. Stepanov S. P. Shokalsky A. N. Azanov V. V. Hiller P. B. Shiryayev |
author_facet |
N. V. Vakhrusheva K. S. Ivanov A. E. Stepanov S. P. Shokalsky A. N. Azanov V. V. Hiller P. B. Shiryayev |
author_sort |
N. V. Vakhrusheva |
title |
Plagioclasites from chromite-bearing ultramafic rocks of the Rai-Iz massif |
title_short |
Plagioclasites from chromite-bearing ultramafic rocks of the Rai-Iz massif |
title_full |
Plagioclasites from chromite-bearing ultramafic rocks of the Rai-Iz massif |
title_fullStr |
Plagioclasites from chromite-bearing ultramafic rocks of the Rai-Iz massif |
title_full_unstemmed |
Plagioclasites from chromite-bearing ultramafic rocks of the Rai-Iz massif |
title_sort |
plagioclasites from chromite-bearing ultramafic rocks of the rai-iz massif |
publisher |
A.N. Zavaritsky Institute of Geology and Geochemistry |
publishDate |
2016 |
url |
https://doaj.org/article/3ce53538331d42bdb9eb93f491d0814f |
genre |
Полярный Урал |
genre_facet |
Полярный Урал |
op_source |
Литосфера, Vol 0, Iss 5, Pp 134-145 (2016) |
op_relation |
https://www.lithosphere.ru/jour/article/view/47 https://doaj.org/toc/1681-9004 https://doaj.org/toc/2500-302X 1681-9004 2500-302X https://doaj.org/article/3ce53538331d42bdb9eb93f491d0814f |
_version_ |
1766239246341898240 |