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)

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.

doi:10.1007/s00710-019-00661-3

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.
Внешние системы:	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.
Ключевые слова:	Petrography; Mineralogy; Magnesiocarbonatite; Geochronology; Apatite;
Издано:	2019
Физ. характеристика:	с.329-352