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U-Th-He geochronology of pyrite from the uzelga VMS deposit (South urals)—new perspectives for direct dating of the ore-forming processes. / Yakubovich, Olga; Podolskaya, Mary; Vikentyev, Ilya; Fokina, Elena; Kotov, Alexander.

In: Minerals, Vol. 10, No. 7, 629, 07.2020, p. 1-20.

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

Harvard

Yakubovich, O, Podolskaya, M, Vikentyev, I, Fokina, E & Kotov, A 2020, 'U-Th-He geochronology of pyrite from the uzelga VMS deposit (South urals)—new perspectives for direct dating of the ore-forming processes', Minerals, vol. 10, no. 7, 629, pp. 1-20. https://doi.org/10.3390/min10070629

APA

Yakubovich, O., Podolskaya, M., Vikentyev, I., Fokina, E., & Kotov, A. (2020). U-Th-He geochronology of pyrite from the uzelga VMS deposit (South urals)—new perspectives for direct dating of the ore-forming processes. Minerals, 10(7), 1-20. [629]. https://doi.org/10.3390/min10070629

Vancouver

Yakubovich O, Podolskaya M, Vikentyev I, Fokina E, Kotov A. U-Th-He geochronology of pyrite from the uzelga VMS deposit (South urals)—new perspectives for direct dating of the ore-forming processes. Minerals. 2020 Jul;10(7):1-20. 629. https://doi.org/10.3390/min10070629

Author

Yakubovich, Olga ; Podolskaya, Mary ; Vikentyev, Ilya ; Fokina, Elena ; Kotov, Alexander. / U-Th-He geochronology of pyrite from the uzelga VMS deposit (South urals)—new perspectives for direct dating of the ore-forming processes. In: Minerals. 2020 ; Vol. 10, No. 7. pp. 1-20.

BibTeX

@article{d1c170dff4264f54abbf934ce685612d,
title = "U-Th-He geochronology of pyrite from the uzelga VMS deposit (South urals)—new perspectives for direct dating of the ore-forming processes",
abstract = "We report on the application of the U-Th-He method for the direct dating of pyrite and provide an original methodological approach for measurement of U, Th and He in single grains without loss of parent nuclides during thermal extraction of He. The U-Th-He age of ten samples of high-crystalline stoichiometric pyrite from unoxidized massive ores of the Uzelga volcanogenic massive sulfide (VMS) deposit, South Urals, is 382 ± 12 Ma (2σ) (U concentrations ~1–5 ppm;4 He ~10−4 cm3 STP g−1). This age is consistent with independent (biostratigraphic) estimations of the age of ore formation (ca, 389–380 Ma) and is remarkably older than the probable age of the regional prehnite-pumpellyite facies metamorphism (~340–345 Ma). Our results indicate that the U-Th-He dating of ~1 mg weight pyrite sample is possible and open new perspectives for the dating of ore deposits. The relative simplicity of U-Th-He dating in comparison with other geochronological methods makes this approach interesting for further application.",
keywords = "Geochronology, Helium dating, Pyrite, Uzelga, VMS deposits",
author = "Olga Yakubovich and Mary Podolskaya and Ilya Vikentyev and Elena Fokina and Alexander Kotov",
year = "2020",
month = jul,
doi = "10.3390/min10070629",
language = "English",
volume = "10",
pages = "1--20",
journal = "Minerals",
issn = "2075-163X",
publisher = "MDPI AG",
number = "7",

}

RIS

TY - JOUR

T1 - U-Th-He geochronology of pyrite from the uzelga VMS deposit (South urals)—new perspectives for direct dating of the ore-forming processes

AU - Yakubovich, Olga

AU - Podolskaya, Mary

AU - Vikentyev, Ilya

AU - Fokina, Elena

AU - Kotov, Alexander

PY - 2020/7

Y1 - 2020/7

N2 - We report on the application of the U-Th-He method for the direct dating of pyrite and provide an original methodological approach for measurement of U, Th and He in single grains without loss of parent nuclides during thermal extraction of He. The U-Th-He age of ten samples of high-crystalline stoichiometric pyrite from unoxidized massive ores of the Uzelga volcanogenic massive sulfide (VMS) deposit, South Urals, is 382 ± 12 Ma (2σ) (U concentrations ~1–5 ppm;4 He ~10−4 cm3 STP g−1). This age is consistent with independent (biostratigraphic) estimations of the age of ore formation (ca, 389–380 Ma) and is remarkably older than the probable age of the regional prehnite-pumpellyite facies metamorphism (~340–345 Ma). Our results indicate that the U-Th-He dating of ~1 mg weight pyrite sample is possible and open new perspectives for the dating of ore deposits. The relative simplicity of U-Th-He dating in comparison with other geochronological methods makes this approach interesting for further application.

AB - We report on the application of the U-Th-He method for the direct dating of pyrite and provide an original methodological approach for measurement of U, Th and He in single grains without loss of parent nuclides during thermal extraction of He. The U-Th-He age of ten samples of high-crystalline stoichiometric pyrite from unoxidized massive ores of the Uzelga volcanogenic massive sulfide (VMS) deposit, South Urals, is 382 ± 12 Ma (2σ) (U concentrations ~1–5 ppm;4 He ~10−4 cm3 STP g−1). This age is consistent with independent (biostratigraphic) estimations of the age of ore formation (ca, 389–380 Ma) and is remarkably older than the probable age of the regional prehnite-pumpellyite facies metamorphism (~340–345 Ma). Our results indicate that the U-Th-He dating of ~1 mg weight pyrite sample is possible and open new perspectives for the dating of ore deposits. The relative simplicity of U-Th-He dating in comparison with other geochronological methods makes this approach interesting for further application.

KW - Geochronology

KW - Helium dating

KW - Pyrite

KW - Uzelga

KW - VMS deposits

UR - http://www.scopus.com/inward/record.url?scp=85088045755&partnerID=8YFLogxK

U2 - 10.3390/min10070629

DO - 10.3390/min10070629

M3 - Article

AN - SCOPUS:85088045755

VL - 10

SP - 1

EP - 20

JO - Minerals

JF - Minerals

SN - 2075-163X

IS - 7

M1 - 629

ER -

ID: 61033691