| Форма представления | Статьи в российских журналах и сборниках |
| Год публикации | 2022 |
| Язык | английский |
|
Кадыров Раиль Илгизарович, автор
|
| Библиографическое описание на языке оригинала |
Serov P.A. et al. X-Ray Computed Microtomography of Sulfide Minerals: Studies of Microinclusions and Implications for the Sm–Nd Dating of Ore Genesis / Serov, P. A., Kadyrov, R. I., Kalashnikov, A. O. // Doklady Earth Sciences. -. 2022. -. Vol. 507, No. S3. P. S400–S405 |
| Аннотация |
Abstract: A microtomographic study of the internal structure of sulfide minerals from the ore-bearing rock varieties of two economically significant deposits in the Arctic zone of the Russian Federation, disseminated ore of the Pilgujarvi Cu–Ni deposit (Pechenga) and metalliferous gabbronorites of the platinum-bearing Fedorovo–Pansky complex (Kola Peninsula), was carried out. It was shown that all sulfide samples studied had a homogeneous structure without obvious defects or silicate inclusions larger than 1 ?m. The absence of silicate microinclusions larger than one micron in sulfides testifies to the isomorphism of rare earth element (REE) occurrence in sulfides and eliminates, to a certain extent, the debatable problem of the influence of microinclusions on the results of Sm–Nd isotope-geochronological studies of sulfides. The presence of smaller (10–500 nm) silicate microinclusions is, with a high degree of probability, unable to control the total REE budget in a sulfide mineral. The conclusion of the absence of a significant effect of microinclusions on the obtained ages is confirmed by the results of Sm–Nd dating using sulfides from the same mineral aliquots: the Sm–Nd ages of the ores of the Pilgujarvi Cu–Ni deposit were estimated at 1965 ? 87 Ma; and the ore-bearing gabbronorites of the Fedorovo-Pansky complex, at 2482 ? 61 Ma. This agrees well with the datings obtained earlier using other isotopic systems (U–Pb, Re–Os). |
| Ключевые слова |
REE; Sm?Nd age; X-ray computed microtomography; geochronology; mineral inclusions; ore genesis; sulfides |
| Название журнала |
Doklady Earth Sciences
|
| URL |
https://link.springer.com/article/10.1134/s1028334x2260164x |
| Пожалуйста, используйте этот идентификатор, чтобы цитировать или ссылаться на эту карточку |
https://repository.kpfu.ru/?p_id=297864 |
Полная запись метаданных  |
| Поле DC |
Значение |
Язык |
| dc.contributor.author |
Кадыров Раиль Илгизарович |
ru_RU |
| dc.date.accessioned |
2022-01-01T00:00:00Z |
ru_RU |
| dc.date.available |
2022-01-01T00:00:00Z |
ru_RU |
| dc.date.issued |
2022 |
ru_RU |
| dc.identifier.citation |
Serov P.A. et al. X-Ray Computed Microtomography of Sulfide Minerals: Studies of Microinclusions and Implications for the Sm–Nd Dating of Ore Genesis / Serov, P. A., Kadyrov, R. I., Kalashnikov, A. O. // Doklady Earth Sciences. -. 2022. -. Vol. 507, No. S3. P. S400–S405 |
ru_RU |
| dc.identifier.uri |
https://repository.kpfu.ru/?p_id=297864 |
ru_RU |
| dc.description.abstract |
Doklady Earth Sciences |
ru_RU |
| dc.description.abstract |
Abstract: A microtomographic study of the internal structure of sulfide minerals from the ore-bearing rock varieties of two economically significant deposits in the Arctic zone of the Russian Federation, disseminated ore of the Pilgujarvi Cu–Ni deposit (Pechenga) and metalliferous gabbronorites of the platinum-bearing Fedorovo–Pansky complex (Kola Peninsula), was carried out. It was shown that all sulfide samples studied had a homogeneous structure without obvious defects or silicate inclusions larger than 1 ?m. The absence of silicate microinclusions larger than one micron in sulfides testifies to the isomorphism of rare earth element (REE) occurrence in sulfides and eliminates, to a certain extent, the debatable problem of the influence of microinclusions on the results of Sm–Nd isotope-geochronological studies of sulfides. The presence of smaller (10–500 nm) silicate microinclusions is, with a high degree of probability, unable to control the total REE budget in a sulfide mineral. The conclusion of the absence of a significant effect of microinclusions on the obtained ages is confirmed by the results of Sm–Nd dating using sulfides from the same mineral aliquots: the Sm–Nd ages of the ores of the Pilgujarvi Cu–Ni deposit were estimated at 1965 ? 87 Ma; and the ore-bearing gabbronorites of the Fedorovo-Pansky complex, at 2482 ? 61 Ma. This agrees well with the datings obtained earlier using other isotopic systems (U–Pb, Re–Os). |
ru_RU |
| dc.language.iso |
ru |
ru_RU |
| dc.subject |
|
ru_RU |
| dc.title |
X-Ray Computed Microtomography of Sulfide Minerals: Studies of Microinclusions and Implications for the Sm–Nd Dating of Ore Genesis |
ru_RU |
| dc.type |
Статьи в российских журналах и сборниках |
ru_RU |
|
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