U-Pb ID-TIMS AGE OF RUTILE FROM THE NORTH MUYA BLOCK ECLOGITES (NORTHEASTERN TRANSBAIKALIA) AS A TRACER OF DURATION FOR OF THE CONTINENTAL LITHOSPHERE EXHUMATION

S. Yu. Skuzovatov; Скузоватов С. Ю.; N. G. Rizvanova; Ризванова Н. Г.; S. G. Skublov; Скублов С. Г.; V. S. Shatsky; Шацкий В. С.

doi:10.31857/S268673972360025X

U-Pb ID-TIMS AGE OF RUTILE FROM THE NORTH MUYA BLOCK ECLOGITES (NORTHEASTERN TRANSBAIKALIA) AS A TRACER OF DURATION FOR OF THE CONTINENTAL LITHOSPHERE EXHUMATION

Authors: Skuzovatov S.Y.¹, Rizvanova N.G.², Skublov S.G.²^,3, Shatsky V.S.⁴^,5
Affiliations:
1. Vinogradov Institute of Geochemistry, Russian Academy of Sciences, Siberian Branch
2. Institute of Precambrian geology and Geochronology, Russian Academy of Sciences
3. Saint Petersburg Mining University
4. Sobolev Institute of Geology and Mineralogy, Russian Academy of Sciences, Siberian Branch
5. Novosibirsk State University
Issue: Vol 512, No 1 (2023)
Pages: 50-59
Section: GEOCHEMISTRY
Submitted: 30.01.2025
Published: 01.09.2023
URL: https://edgccjournal.org/2686-7397/article/view/649829
DOI: https://doi.org/10.31857/S268673972360025X
EDN: https://elibrary.ru/IHGQDC
ID: 649829

Cite item

Full Text

Open Access
Restricted Access

Access granted
Restricted Access

Subscription Access

Abstract
About the authors
References
Supplementary files
Statistics

Abstract

Being an abundant mineral phase of high-grade rocks, rutile is used as a tracer of lithospheric evolution for deep zones of orogenic belts. This study presents the new ID-TIMS U–Pb geochronological, mineralogical and geochemical data for rutile from the North Muya block (Baikal-Muya Foldbelt) eclogites in order to examine the applicability of its age estimates relative to the exhumation process of high-grade rocks. The assemblage of mineral inclusions in rutile (mainly titanite, epidote and amphibole) indicate rutile growth through titanite breakdown reactions during prograde metamorphism epidote-amphibolite or amphibolite-facies rocks. The range of Zr contents and estimated Zr-in-rutile crystallization temperatures correspond to conditions from prograde (619–638°С at 1.5 GPa) till peak ones (659–684°С for 2.5 GPa). The U–Pb age estimate (604 Ma) is notably younger than that of peak eclogitic metamorphism (630 Ma), and highlight the protracted cooling history of eclogite-bearing complex during its evolution below closure temperature of the U–Pb isotope system (~500–525°С) during tectonic unroofing or erosion of continental complexes.

Keywords

Central Asian Orogenic belt, Baikal-Muya belt, eclogites, rutile, ID-TIMS U–Pb geochronology, lithospheric exhumation

References

Mezger K., Hanson G.N., Bohlen S.R. High-precision U–Pb ages of metamorphic rutiles: application to the cooling history of high-grade terranes // Earth and Planetary Science letters. 1989. V. 96. P. 106–118.
Tomkins H.S., Powell R., Ellis D.J. The pressure dependence of the zirconium-in-rutile thermometer // Journal of Metamorphic Geology. 2007. V. 25. P. 703–713.
Baldwin J.A., Brown M. Age and duration of ultrahigh-temperature metamorphism in the Anapolis–Itaucu complex, Southern Brasilia belt, central Brazil – constraints from U–Pb geochronology, mineral rare earth element chemistry and trace-element thermometry // Journal of Metamorphic Geology. 2008. V. 26. P. 213–233.
Kooijman E., Smit M.A., Mezger K., Berndt J. Trace element systematics in granulite facies rutile: implications for Zr geothermometry and provenance studies // Journal of Metamorphic Geology. 2012. V. 130 (4). P. 397–412.
Cherniak D.J. Pb diffusion in rutile // Contributions to Mineralogy and Petrology. 2000. V. 139. P. 198–207.
Kooijman E., Mezger K., Berndt J. Constraints on the U–Pb systematics of metamorphic rutile from in situ LA-ICP-MS analysis // Earth and Planetary Science Letters. 2010. V. 293 (3–4). P. 321–330.
Vry J.K., Baker J.A. LA-MC-ICPMS Pb–Pb dating of rutile from slowly cooled granulites: confirmation of the high closure temperature for Pb diffusion in rutile // Geochimica et Cosmochimica Acta. 2006. V. 70. P. 1807–1820.
Zack T., Stockli D.F., Luvizotto G.L., Barth M.G., Belousova E., Wolfe M.R., Hinton R.W. In situ U–Pb rutile dating by LA-ICPMS: 208Pb correction and prospects for geological applications // Contributions to Mineralogy and Petrology. 2011. V. 162. P. 515–530.
Шацкий В.С., Ситникова Е.С., Томиленко А.А., Рагозин А.Л., Козьменко О.А., Ягоутц Э. Эклогит-гнейсовый комплекс Муйской глыбы (Восточная Сибирь): возраст, минералогия, геохимия, петрология // Геология и геофизика. 2012. Т. 53. № 6. С. 657–682.
Шацкий В.С., Скузоватов С.Ю., Рагозин А.Л., Дриль С.И. Свидетельства неопротерозойской континентальной субдукции в Байкало-Муйском складчатом поясе // ДАН. 2014. Т. 459. № 2. С. 228–231.
Skuzovatov S.Yu. Differential fluid activity in a single exhumed continental subduction unit from local P-T-M(H2O) records of zoned amphiboles (North Muya, Eastern Siberia) // Minerals. 2022. V. 12(2). P. 217.
Skuzovatov S.Yu., Shatsky V.S., Wang K.-L. Continental subduction during arc-microcontinent collision in the southern Siberian craton: constraints on protoliths and metamorphic evolution of the North Muya complex eclogites (Eastern Siberia) // Lithos. 2019. V. 342–343. P. 76–96.
Ludwig K.R. PbDat for MS-DOS, version 1.21. U.S. Geological Survey Open-File Report, 1991, p. 88–542.
Ludwig K.R. ISOPLOT 3.0-a Geochronological Toolkit for Microsoft Excel. – Berkeley Geochronology Center Special Publication, 2003, 74 p.
Ludwig K.R. On the treatment of concordant uranium-lead ages // Geochimica et Cosmochimica Acta. 1998. V. 62(4). P. 665–676.
Starr P.G., Pattison D.R.M. Equilibrium and disequilibrium processes across the greenschist – amphibolite transition zone in metabasites // Contributions to Mineralogy and Petrology. 2019. V. 174(2). P. 1–18.
Kapp P., Manning C.E., Tropper P. Phase-equilibrium constraints on titanite and rutile activities in mafic epidote amphibolites and geobarometry using titanite–rutile equilibria // Journal of Metamorphic Geology. 2009. V. 27. P. 509–521.
Cherniak D.J., Manchester J., Watson E.B. Zr and Hf diffusion in rutile // Earth and Planetary Science Letters. 2007. V. 261. P. 267–279.
Dodson M.H. Closure temperature in cooling geochronological and petrological systems // Contributions to Mineralogy and Petrology. 1973. V. 40. P. 59–274.
Срывцев Н.А., Халилов В.А., Булдыгеров В.В., Переляев В.И. Геохронология гранитоидов Байкало-Муйского пояса // Геология и геофизика. 1992. № 9. С. 92–78.