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U-Pb SHRIMP-II ages of titanite and timing constraints on apatite-nepheline mineralization in the Khibiny and Lovozero alkaline massifs (Kola Peninsula). / Rodionov, N. V.; Lepekhina, E. N.; Antonov, A. V.; Kapitonov, I. N.; Balashova, Yu S.; Belyatsky, B. V.; Arzamastsev, A. A.; Sergeev, S. A.

In: Russian Geology and Geophysics, Vol. 59, No. 8, 01.08.2018, p. 962-974.

Research output: Contribution to journal › Article › peer-review

Harvard

Rodionov, NV, Lepekhina, EN, Antonov, AV, Kapitonov, IN, Balashova, YS, Belyatsky, BV, Arzamastsev, AA & Sergeev, SA 2018, 'U-Pb SHRIMP-II ages of titanite and timing constraints on apatite-nepheline mineralization in the Khibiny and Lovozero alkaline massifs (Kola Peninsula)', Russian Geology and Geophysics, vol. 59, no. 8, pp. 962-974. https://doi.org/10.1016/j.rgg.2018.07.016

APA

Rodionov, N. V., Lepekhina, E. N., Antonov, A. V., Kapitonov, I. N., Balashova, Y. S., Belyatsky, B. V., Arzamastsev, A. A., & Sergeev, S. A. (2018). U-Pb SHRIMP-II ages of titanite and timing constraints on apatite-nepheline mineralization in the Khibiny and Lovozero alkaline massifs (Kola Peninsula). Russian Geology and Geophysics, 59(8), 962-974. https://doi.org/10.1016/j.rgg.2018.07.016

Vancouver

Rodionov NV, Lepekhina EN, Antonov AV, Kapitonov IN, Balashova YS, Belyatsky BV et al. U-Pb SHRIMP-II ages of titanite and timing constraints on apatite-nepheline mineralization in the Khibiny and Lovozero alkaline massifs (Kola Peninsula). Russian Geology and Geophysics. 2018 Aug 1;59(8):962-974. https://doi.org/10.1016/j.rgg.2018.07.016

Author

Rodionov, N. V. ; Lepekhina, E. N. ; Antonov, A. V. ; Kapitonov, I. N. ; Balashova, Yu S. ; Belyatsky, B. V. ; Arzamastsev, A. A. ; Sergeev, S. A. / U-Pb SHRIMP-II ages of titanite and timing constraints on apatite-nepheline mineralization in the Khibiny and Lovozero alkaline massifs (Kola Peninsula). In: Russian Geology and Geophysics. 2018 ; Vol. 59, No. 8. pp. 962-974.

BibTeX

@article{866f0c22558d4cdbaad87a61c5cbefbd,
title = "U-Pb SHRIMP-II ages of titanite and timing constraints on apatite-nepheline mineralization in the Khibiny and Lovozero alkaline massifs (Kola Peninsula)",
abstract = "Results of this study of titanite samples collected from silicate rocks and apatite-nepheline-(sphene) ores from Paleozoic polyphase alkaline nepheline syenite complexes of the Khibiny and Lovozero massifs revealed the possibility of their in-situ U-Pb dating using sensitive high-resolution ion microprobe SHRIMP-II with an accuracy of 1.0-1.5%, which is comparable with that of U-Pb zircon analysis. Employing different approaches to age determination of the formation of the U-Pb system of titanites, the combined isochrons and mixing lines were plotted from the data obtained from the differentiated complex samples (121 analyses of five Khibiny samples and 52 analyses of one Lovozero sample) and apatite-nepheline ores (120 analyses of five Khibiny samples and 88 analyses of three Lovozero samples). They indicate synchronous crystallization of titanite in silicate rocks throughout the complexes: 374.1 ± 3.7 Ma for the Khibiny massif and 380.9 ± 4.5 Ma for the Lovozero massif, and attest to the later formation of phosphate-rare-metal ores: 371.0 ± 4.2 and 361.4 ± 3.2 Ma, respectively. The relatively delayed ore mineralization specific to the Lovozero massif can be accounted for the significantly lower volumes of magmatic melt and ore fluid involved, different thermal conditions, and the pattern of the investigated mineralization. As such, the obtained U-Pb data from titanite make it possible to limit significantly the time interval (most likely, not exceeding 15-20 Ma) comprising the evolution and activity of the ore-magmatic system of major agpaitic complexes, which is probably associated with plume magmatism.",
keywords = "agpaitic syenites, apatite-nepheline ores, Khibiny, Lovozero, SHRIMP, sphene, titanite, U-Pb dating",
author = "Rodionov, {N. V.} and Lepekhina, {E. N.} and Antonov, {A. V.} and Kapitonov, {I. N.} and Balashova, {Yu S.} and Belyatsky, {B. V.} and Arzamastsev, {A. A.} and Sergeev, {S. A.}",
year = "2018",
month = aug,
day = "1",
doi = "10.1016/j.rgg.2018.07.016",
language = "English",
volume = "59",
pages = "962--974",
journal = "Russian Geology and Geophysics",
issn = "1068-7971",
publisher = "Elsevier",
number = "8",

}

RIS

TY - JOUR

T1 - U-Pb SHRIMP-II ages of titanite and timing constraints on apatite-nepheline mineralization in the Khibiny and Lovozero alkaline massifs (Kola Peninsula)

AU - Rodionov, N. V.

AU - Lepekhina, E. N.

AU - Antonov, A. V.

AU - Kapitonov, I. N.

AU - Balashova, Yu S.

AU - Belyatsky, B. V.

AU - Arzamastsev, A. A.

AU - Sergeev, S. A.

PY - 2018/8/1

Y1 - 2018/8/1

N2 - Results of this study of titanite samples collected from silicate rocks and apatite-nepheline-(sphene) ores from Paleozoic polyphase alkaline nepheline syenite complexes of the Khibiny and Lovozero massifs revealed the possibility of their in-situ U-Pb dating using sensitive high-resolution ion microprobe SHRIMP-II with an accuracy of 1.0-1.5%, which is comparable with that of U-Pb zircon analysis. Employing different approaches to age determination of the formation of the U-Pb system of titanites, the combined isochrons and mixing lines were plotted from the data obtained from the differentiated complex samples (121 analyses of five Khibiny samples and 52 analyses of one Lovozero sample) and apatite-nepheline ores (120 analyses of five Khibiny samples and 88 analyses of three Lovozero samples). They indicate synchronous crystallization of titanite in silicate rocks throughout the complexes: 374.1 ± 3.7 Ma for the Khibiny massif and 380.9 ± 4.5 Ma for the Lovozero massif, and attest to the later formation of phosphate-rare-metal ores: 371.0 ± 4.2 and 361.4 ± 3.2 Ma, respectively. The relatively delayed ore mineralization specific to the Lovozero massif can be accounted for the significantly lower volumes of magmatic melt and ore fluid involved, different thermal conditions, and the pattern of the investigated mineralization. As such, the obtained U-Pb data from titanite make it possible to limit significantly the time interval (most likely, not exceeding 15-20 Ma) comprising the evolution and activity of the ore-magmatic system of major agpaitic complexes, which is probably associated with plume magmatism.

AB - Results of this study of titanite samples collected from silicate rocks and apatite-nepheline-(sphene) ores from Paleozoic polyphase alkaline nepheline syenite complexes of the Khibiny and Lovozero massifs revealed the possibility of their in-situ U-Pb dating using sensitive high-resolution ion microprobe SHRIMP-II with an accuracy of 1.0-1.5%, which is comparable with that of U-Pb zircon analysis. Employing different approaches to age determination of the formation of the U-Pb system of titanites, the combined isochrons and mixing lines were plotted from the data obtained from the differentiated complex samples (121 analyses of five Khibiny samples and 52 analyses of one Lovozero sample) and apatite-nepheline ores (120 analyses of five Khibiny samples and 88 analyses of three Lovozero samples). They indicate synchronous crystallization of titanite in silicate rocks throughout the complexes: 374.1 ± 3.7 Ma for the Khibiny massif and 380.9 ± 4.5 Ma for the Lovozero massif, and attest to the later formation of phosphate-rare-metal ores: 371.0 ± 4.2 and 361.4 ± 3.2 Ma, respectively. The relatively delayed ore mineralization specific to the Lovozero massif can be accounted for the significantly lower volumes of magmatic melt and ore fluid involved, different thermal conditions, and the pattern of the investigated mineralization. As such, the obtained U-Pb data from titanite make it possible to limit significantly the time interval (most likely, not exceeding 15-20 Ma) comprising the evolution and activity of the ore-magmatic system of major agpaitic complexes, which is probably associated with plume magmatism.

KW - agpaitic syenites

KW - apatite-nepheline ores

KW - Khibiny

KW - Lovozero

KW - SHRIMP

KW - sphene

KW - titanite

KW - U-Pb dating

UR - http://www.scopus.com/inward/record.url?scp=85051084928&partnerID=8YFLogxK

U2 - 10.1016/j.rgg.2018.07.016

DO - 10.1016/j.rgg.2018.07.016

M3 - Article

AN - SCOPUS:85051084928

VL - 59

SP - 962

EP - 974

JO - Russian Geology and Geophysics

JF - Russian Geology and Geophysics

SN - 1068-7971

IS - 8

ER -

ID: 33146543