Research output: Contribution to journal › Article › peer-review
Petrography, mineralogy and SIMS U-Pb geochronology of 1.9–1.8 Ga carbonatites and associated alkaline rocks of the Central-Aldan magnesiocarbonatite province (South Yakutia, Russia). / Prokopyev, Ilya R.; Doroshkevich, Anna G.; Sergeev, Sergey A. et al.
In: Mineralogy and Petrology, Vol. 113, No. 3, 01.06.2019, p. 329-352.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Petrography, mineralogy and SIMS U-Pb geochronology of 1.9–1.8 Ga carbonatites and associated alkaline rocks of the Central-Aldan magnesiocarbonatite province (South Yakutia, Russia)
AU - Prokopyev, Ilya R.
AU - Doroshkevich, Anna G.
AU - Sergeev, Sergey A.
AU - Ernst, Richard E.
AU - Ponomarev, Jean D.
AU - Redina, Anna A.
AU - Chebotarev, Dmitry A.
AU - Nikolenko, Anna M.
AU - Dultsev, Vladislav F.
AU - Moroz, Tatyana N.
AU - Minakov, Alexey V.
PY - 2019/6/1
Y1 - 2019/6/1
N2 - 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.
AB - 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.
KW - Apatite
KW - Geochronology
KW - Magnesiocarbonatite
KW - Mineralogy
KW - Petrography
UR - http://www.scopus.com/inward/record.url?scp=85065867464&partnerID=8YFLogxK
U2 - 10.1007/s00710-019-00661-3
DO - 10.1007/s00710-019-00661-3
M3 - Article
AN - SCOPUS:85065867464
VL - 113
SP - 329
EP - 352
JO - Mineralogy and Petrology
JF - Mineralogy and Petrology
SN - 0930-0708
IS - 3
ER -
ID: 20163074