First data on the geochemistry and U-Pb age of zircons from the kamaphorites of the Tomtor alkaline-ultrabasic massif, Arctic Yakutia

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First data on the geochemistry and U-Pb age of zircons from the kamaphorites of the Tomtor alkaline-ultrabasic massif, Arctic Yakutia. / Skublov, S. G.; Tolstov, A. V.; Baranov, L. N. et al.

In: Chemie der Erde, Vol. 80, No. 3, 125505, 09.2020.

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

Harvard

Skublov, SG, Tolstov, AV, Baranov, LN, Melnik, AE & Levashova, EV 2020, 'First data on the geochemistry and U-Pb age of zircons from the kamaphorites of the Tomtor alkaline-ultrabasic massif, Arctic Yakutia', Chemie der Erde, vol. 80, no. 3, 125505. https://doi.org/10.1016/j.chemer.2019.04.001

APA

Skublov, S. G., Tolstov, A. V., Baranov, L. N., Melnik, A. E., & Levashova, E. V. (2020). First data on the geochemistry and U-Pb age of zircons from the kamaphorites of the Tomtor alkaline-ultrabasic massif, Arctic Yakutia. Chemie der Erde, 80(3), [125505]. https://doi.org/10.1016/j.chemer.2019.04.001

Vancouver

Skublov SG, Tolstov AV, Baranov LN, Melnik AE, Levashova EV. First data on the geochemistry and U-Pb age of zircons from the kamaphorites of the Tomtor alkaline-ultrabasic massif, Arctic Yakutia. Chemie der Erde. 2020 Sept;80(3):125505. doi: 10.1016/j.chemer.2019.04.001

Author

Skublov, S. G. ; Tolstov, A. V. ; Baranov, L. N. et al. / First data on the geochemistry and U-Pb age of zircons from the kamaphorites of the Tomtor alkaline-ultrabasic massif, Arctic Yakutia. In: Chemie der Erde. 2020 ; Vol. 80, No. 3.

BibTeX

@article{049774eb7e904034b093561bd5ecccde,

title = "First data on the geochemistry and U-Pb age of zircons from the kamaphorites of the Tomtor alkaline-ultrabasic massif, Arctic Yakutia",

abstract = " Zircon from Tomtor syenites and kamaphorites was dated following the U-Pb method (SHRIMP-II), and the distribution of trace and rare-earth elements (REE)was studied at the same zircon point using an ion microprobe. The main zircon population from syenites was dated at 402 ± 7 Ma, while the age range of single zircon grains was 700–660 Mа. Different-aged zircon groups from syenites exhibited the characteristics of magmatic zircon, but their concentrations of REE and other trace elements differed markedly. The REE distribution in 700–660-Mа zircon is consistent with that of the typical zircon from syenites (Belousova et al., 2002), while the heavy rare-earth elements (HREE), P, Ti, and Y concentrations of ca. 400-Ma zircon differ from those of older zircon. This is the first isotope-geochemical study of zircon from kamaphorites, and the U-Pb age of ca. 400 Mа is within the error limits with of the main zircon population from syenites. The considerable enrichment of REE, Cа, Ti, Sr, Y, Nb, and Ba in zircon from kamaphorites may be partly due to the presence of burbankite microinclusions. The trace-element distribution pattern of zircon from kamaphorites is very similar to the geochemical characteristics of zircon from Tiksheozero carbonatites (Tichomirowa et al., 2013). The new age dates for Tomtor syenites and kamaphorites, consistent with 700–660 Mа and ca. 400 Mа events, support the zircon (Vladykin et al., 2014)and pyrochlore (Antonov et al., 2017)age dates determined following the U-Pb method and those of biotite obtained following the 40 Ar- 39 Ar method (Vladykin et al., 2014). ",

keywords = "Kamaphorites, Rare earth elements, Tomtor massif, U-Pb dating, Zircon, COMPLEXES, INDICATOR, DEPOSIT, GENESIS, TRACE-ELEMENT, REE, ORES, TH, SYENITE",

author = "Skublov, {S. G.} and Tolstov, {A. V.} and Baranov, {L. N.} and Melnik, {A. E.} and Levashova, {E. V.}",

year = "2020",

month = sep,

doi = "10.1016/j.chemer.2019.04.001",

language = "English",

volume = "80",

journal = "Chemie der Erde",

issn = "0009-2819",

publisher = "Elsevier GmbH",

number = "3",

}

RIS

TY - JOUR

T1 - First data on the geochemistry and U-Pb age of zircons from the kamaphorites of the Tomtor alkaline-ultrabasic massif, Arctic Yakutia

AU - Skublov, S. G.

AU - Tolstov, A. V.

AU - Baranov, L. N.

AU - Melnik, A. E.

AU - Levashova, E. V.

PY - 2020/9

Y1 - 2020/9

N2 - Zircon from Tomtor syenites and kamaphorites was dated following the U-Pb method (SHRIMP-II), and the distribution of trace and rare-earth elements (REE)was studied at the same zircon point using an ion microprobe. The main zircon population from syenites was dated at 402 ± 7 Ma, while the age range of single zircon grains was 700–660 Mа. Different-aged zircon groups from syenites exhibited the characteristics of magmatic zircon, but their concentrations of REE and other trace elements differed markedly. The REE distribution in 700–660-Mа zircon is consistent with that of the typical zircon from syenites (Belousova et al., 2002), while the heavy rare-earth elements (HREE), P, Ti, and Y concentrations of ca. 400-Ma zircon differ from those of older zircon. This is the first isotope-geochemical study of zircon from kamaphorites, and the U-Pb age of ca. 400 Mа is within the error limits with of the main zircon population from syenites. The considerable enrichment of REE, Cа, Ti, Sr, Y, Nb, and Ba in zircon from kamaphorites may be partly due to the presence of burbankite microinclusions. The trace-element distribution pattern of zircon from kamaphorites is very similar to the geochemical characteristics of zircon from Tiksheozero carbonatites (Tichomirowa et al., 2013). The new age dates for Tomtor syenites and kamaphorites, consistent with 700–660 Mа and ca. 400 Mа events, support the zircon (Vladykin et al., 2014)and pyrochlore (Antonov et al., 2017)age dates determined following the U-Pb method and those of biotite obtained following the 40 Ar- 39 Ar method (Vladykin et al., 2014).

AB - Zircon from Tomtor syenites and kamaphorites was dated following the U-Pb method (SHRIMP-II), and the distribution of trace and rare-earth elements (REE)was studied at the same zircon point using an ion microprobe. The main zircon population from syenites was dated at 402 ± 7 Ma, while the age range of single zircon grains was 700–660 Mа. Different-aged zircon groups from syenites exhibited the characteristics of magmatic zircon, but their concentrations of REE and other trace elements differed markedly. The REE distribution in 700–660-Mа zircon is consistent with that of the typical zircon from syenites (Belousova et al., 2002), while the heavy rare-earth elements (HREE), P, Ti, and Y concentrations of ca. 400-Ma zircon differ from those of older zircon. This is the first isotope-geochemical study of zircon from kamaphorites, and the U-Pb age of ca. 400 Mа is within the error limits with of the main zircon population from syenites. The considerable enrichment of REE, Cа, Ti, Sr, Y, Nb, and Ba in zircon from kamaphorites may be partly due to the presence of burbankite microinclusions. The trace-element distribution pattern of zircon from kamaphorites is very similar to the geochemical characteristics of zircon from Tiksheozero carbonatites (Tichomirowa et al., 2013). The new age dates for Tomtor syenites and kamaphorites, consistent with 700–660 Mа and ca. 400 Mа events, support the zircon (Vladykin et al., 2014)and pyrochlore (Antonov et al., 2017)age dates determined following the U-Pb method and those of biotite obtained following the 40 Ar- 39 Ar method (Vladykin et al., 2014).

KW - Kamaphorites

KW - Rare earth elements

KW - Tomtor massif

KW - U-Pb dating

KW - Zircon

KW - COMPLEXES

KW - INDICATOR

KW - DEPOSIT

KW - GENESIS

KW - TRACE-ELEMENT

KW - REE

KW - ORES

KW - TH

KW - SYENITE

UR - http://www.scopus.com/inward/record.url?scp=85065187831&partnerID=8YFLogxK

U2 - 10.1016/j.chemer.2019.04.001

DO - 10.1016/j.chemer.2019.04.001

M3 - Article

AN - SCOPUS:85065187831

VL - 80

JO - Chemie der Erde

JF - Chemie der Erde

SN - 0009-2819

IS - 3

M1 - 125505

ER -

ID: 20182440