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...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
A.N. Zavaritsky Institute of Geology and Geochemistry
2016-01-01
|
| Series: | Литосфера |
| Subjects: | |
| Online Access: | https://test.lithosphere.ru/jour/article/view/47 |
| _version_ | 1828388837131288576 |
|---|---|
| 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 |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-12-10T06:19:57Z |
| format | Article |
| id | doaj.art-bcd2cc173f244d6fae59b1dfa20178b1 |
| institution | Directory Open Access Journal |
| issn | 1681-9004 2500-302X |
| language | English |
| last_indexed | 2024-12-10T06:19:57Z |
| publishDate | 2016-01-01 |
| publisher | A.N. Zavaritsky Institute of Geology and Geochemistry |
| record_format | Article |
| series | Литосфера |
| spelling | doaj.art-bcd2cc173f244d6fae59b1dfa20178b12022-12-22T01:59:22ZengA.N. Zavaritsky Institute of Geology and GeochemistryЛитосфера1681-90042500-302X2016-01-010513414547Plagioclasites from chromite-bearing ultramafic rocks of the Rai-Iz massifN. V. Vakhrusheva0K. S. Ivanov1A. E. Stepanov2S. P. Shokalsky3A. N. Azanov4V. V. Hiller5P. B. Shiryayev6Uralian State Mining UniversityInstitute of Geology and Geochemistry Urals Branche of RASInstitute of Geology and Geochemistry Urals Branche of RASRussian Geological Research InsituteUralian State Mining UniversityInstitute of Geology and Geochemistry Urals Branche of RASUralian State Mining UniversityThe 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.https://test.lithosphere.ru/jour/article/view/47ультрамафитыплагиоклазитыПолярный УралцирконыU-Pb датированиевозрастпалеозойultramafic rocksplagioclasitesPolar UralszirconsU-Pb datingagePaleozoic |
| spellingShingle | 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 Литосфера ультрамафиты плагиоклазиты Полярный Урал цирконы U-Pb датирование возраст палеозой ultramafic rocks plagioclasites Polar Urals zircons U-Pb dating age Paleozoic |
| title | 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_short | Plagioclasites from chromite-bearing ultramafic rocks of the Rai-Iz massif |
| title_sort | plagioclasites from chromite bearing ultramafic rocks of the rai iz massif |
| topic | ультрамафиты плагиоклазиты Полярный Урал цирконы U-Pb датирование возраст палеозой ultramafic rocks plagioclasites Polar Urals zircons U-Pb dating age Paleozoic |
| url | https://test.lithosphere.ru/jour/article/view/47 |
| work_keys_str_mv | AT nvvakhrusheva plagioclasitesfromchromitebearingultramaficrocksoftheraiizmassif AT ksivanov plagioclasitesfromchromitebearingultramaficrocksoftheraiizmassif AT aestepanov plagioclasitesfromchromitebearingultramaficrocksoftheraiizmassif AT spshokalsky plagioclasitesfromchromitebearingultramaficrocksoftheraiizmassif AT anazanov plagioclasitesfromchromitebearingultramaficrocksoftheraiizmassif AT vvhiller plagioclasitesfromchromitebearingultramaficrocksoftheraiizmassif AT pbshiryayev plagioclasitesfromchromitebearingultramaficrocksoftheraiizmassif |