| Инд. авторы: | Prokopyev I.R, Doroshkevich A.G., Sergeev S.A., Ernst R.E., Ponomarev J.D., Redina A.A., Chebotarev D.A., Nikolenko A.M., Dultsev V.F., Moroz T.N., Minakov A.V. |
| Заглавие: | Petrography, mineralogy and SIMS U-Pb geochronology of 1.9-1.8Ga carbonatites and associated alkaline rocks of the Central-Aldan magnesiocarbonatite province (South Yakutia, Russia) |
| Библ. ссылка: | Prokopyev I.R, Doroshkevich A.G., Sergeev S.A., Ernst R.E., Ponomarev J.D., Redina A.A., Chebotarev D.A., Nikolenko A.M., Dultsev V.F., Moroz T.N., Minakov A.V. Petrography, mineralogy and SIMS U-Pb geochronology of 1.9-1.8Ga carbonatites and associated alkaline rocks of the Central-Aldan magnesiocarbonatite province (South Yakutia, Russia) // Mineralogy and Petrology. - 2019. - Vol.113. - Iss. 3. - P.329-352. - ISSN 0930-0708. - EISSN 1438-1168. |
| Идентиф-ры: | DOI: 10.1007/s00710-019-00661-3; РИНЦ: 39000253; SCOPUS: 2-s2.0-85065867464; WoS: 000468241100004; |
| Реферат: | eng: The N-S trending Central-Aldan magnesiocarbonatite province is located in the Aldan-Stanovoy shield (South Yakutia, Russia). Several apatite-dolomitic carbonatite occurrences were studied: Seligdar, Muostalaah, Ust-Chulman and Birikeen. Mineralogical and petrographic investigations indicate intense hydrothermal-metasomatic alteration and metamorphism, which are reflected in the evolution of the mineral parageneses. The primary minerals are fluorapatite, magnetite, ilmenite, dolomite, K-feldspar, phlogopite and accessory zircon, titanite, baddeleyite and thorite. The hydrothermal-metasomatic minerals are quartz, calcite and siderite aggregates with haematite, monazite-(Ce), xenotime-(Y), rutile-(Nb), barite-(Sr), anhydrite, ancylite-(Ce) and rare sulphide mineral phases. Alkaline rocks associated with the Muostalaah complex, were also studied. The following U-Pb ages have been obtained (Ma): 1930 +/- 7 for Muostalaah alkaline basic rocks, 1906 +/- 6 for Muostalaah carbonatites, and 1880 +/- 13 and 1878 +/- 17 for Seligdar and Ust-Chulman carbonatites, respectively.
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| Ключевые слова: | Petrography; Mineralogy; Magnesiocarbonatite; Geochronology; Apatite; |
| Издано: | 2019 |
| Физ. хар-ка: | с.329-352 |