40Ar/39Ar ДАТИРОВАНИЕ ПОРОД ЩЕЛОЧНОГО МАССИВА БУРПАЛА – КЛЮЧ К ПОНИМАНИЮ ДЛИТЕЛЬНОСТИ ЕГО СТАНОВЛЕНИЯ

В статье представлены результаты ⁴⁰Ar/³⁹Ar датирования пород (кварцевых и щелочных сиенитов, нефелиновых сиенитов с REE-Nb-Zr-минерализацией) массива Бурпала по полевым шпатам, флогопиту и амфиболу. Полученные результаты ограничивают закрытие K-Ar изотопной системы в полевых шпатах кварцевых и щелочных сиенитов интервалом 274–283 млн лет, в то время как возраст закрытия K-Ar изотопной системы в амфиболе щелочного сиенита и флогопите рудосодержащего нефелинового сиенита составляет 298±4 млн лет и 301±4 млн лет соответственно. Оценки давления образования по геобарометру плагиоклаз – роговая обманка показывают, что породы массива образовались на глубине порядка 10 км. Сопоставление со значениями возраста цирконов свидетельствует об одновременном закрытии U-Pb и K-Ar изотопных систем в цирконах, флогопите и амфиболе соответственно. Закрытие же K-Ar изотопной системы в полевых шпатах произошло позже – спустя 12–15 млн лет.

1. Anderson J.L., Smith D.R., 1995. The Effect of Temperature and fO2 on Al-in-Hornblende Barometry. American Mineralogist 80 (5–6), 549–559. https://doi.org/10.2138/am-1995-5-614.

2. Архангельская В.В. Редкометальные щелочные комплексы южного края Сибирской платформы. М.: Недра, 1974. 128 с.

3. Baksi A.K., Archibald D.A., Farrar E., 1996. Intercalibration of 40Ar/39Ar Dating Standards. Chemical Geology 129 (3–4), 307–324. https://doi.org/10.1016/0009-2541(95)00154-9.

4. Carter J.N., Hasler C.E.J., Fuentes A.J., Tholt A.J., Morgan L.E., Renne P.R., 2025. Bayesian Calibration of the 40K Decay Scheme with Implications for 40K-Based Geochronology. Geochimica et Cosmochimica Acta 397, 149–163. https://doi.org/10.1016/j.gca.2025.03.024.

5. Dodson M.H., 1973. Closure Temperature in Cooling Geochronological and Petrological Systems. Contributions to Mineralogy and Petrology 40, 259–274. https://doi.org/10.1007/BF00373790.

6. Donskaya T.V., Gladkochub D.P., Mazukabzov A.M., Ivanov A.V., 2013. Late Paleozoic – Mesozoic Subduction-Related Magmatism at the Southern Margin of the Siberian Continent and the 150 Million-Year History of the Mongol-Okhotsk Ocean. Journal Asian Earth Sciences 62, 79–97. https://doi.org/10.1016/j.jseaes.2012.07.023.

7. Doroshkevich A.G., Ripp G.S., Izbrodin I.A., Savatenkov V.M., 2012. Alkaline Magmatism of the Vitim Province, West Transbaikalia, Russia: Age, Mineralogical, Geochemical and Isotope (О, C, D, Sr and Nd) Data. Lithos 152, 157–172. https://doi.org/10.1016/j.lithos.2012.05.002.

8. Grau Malonda A., Grau Carles A., 2002. Half-Life Determination of 40K by LSC. Applied Radiation and Isotopes 56 (1–2), 153–156. https://doi.org/10.1016/S0969-8043(01)00181-6.

9. Harrison T.M., Heizler M.T., McKeegan K.D., Schmitt A.K., 2010. In Situ 40K–40Ca “Double-Plus” SIMS Dating Resolves Klokken Feldspar 40K–40Ar Paradox. Earth and Planetary Science Letters 299 (3–4), 426–433. https://doi.org/10.1016/j.epsl.2010.09.023.

10. Harrison T.M., Lovera O.M., 2014. The Multi-Diffusion Domain Model: Past, Present and Future. In: F. Jourdan, D.F. Mark, C. Verati (Eds), Advances in 40Ar/39Ar Dating: From Archaeology to Planetary Sciences. Geological Society of London Special Publications 378, 91–106. https://doi.org/10.1144/SP378.9.

11. Hodges K.V., 2004. Geochronology and Thermochronology in Orogenic Systems. Treatise on Geochemistry 3, 263–292. https://doi.org/10.1016/B0-08-043751-6/03024-3.

12. Ivanov A.V., Demonterova E.I., Reznitskii L.Z., Barash I.G., Arzhannikov S.G., Arzhannikova A.V., Hung C.-H., Chung S.-L., Iizuka Y., 2016. Catastrophic Outburst and Tsunami Flooding of Lake Baikal: U-Pb Detrital Zircon Provenance Study of the Palaeo-Manzurka Megaflood Sediments. International Geology Review 58 (14), 1818–1830. https://doi.org/10.1080/00206814.2015.1064329.

13. Избродин И.А., Дорошкевич А.Г., Малютина А.В., Семенова Д.В., Радомская Т.А., Крук М.Н., Прокопьев И.Р., Старикова А.Е., Рампилов М.О. Геохронология пород щелочного массива Бурпала (Северное Прибайкалье): новые U-Pb данные // Геодинамика и тектонофизика. 2024. Т. 15. № 1. 0741. https://doi.org/10.5800/GT-2024-15-1-0741.

14. Izbrodin I.A., Doroshkevich A.G., Rampilov M.O., Elbaev A.L., Ripp G.S., 2020. Late Paleozoic Alkaline Magmatism in Western Transbaikalia, Russia: Implications for Magma Sources and Tectonic Settings. Geoscience Frontiers 11 (4), 1289–1303. https://doi.org/10.1016/j.gsf.2019.12.009.

15. Izbrodin I.A., Doroshkevich A.G., Rampilov M.O., Ripp G.S., Lastochkin E.I., Khubanov V.B., Posokhov V.F., Vladykin N.V., 2017. Age and Mineralogical and Geochemical Parameters of Rocks of the China Alkaline Massif (Western Transbaikalia). Russian Geology and Geophysics 58 (8), 903–921. https://doi.org/10.1016/j.rgg.2017.07.002.

16. Khubanov V.B., Tsygankov A.A., Burmakina G.N., 2021. The Duration and Geodynamics of Formation of the Angara-Vitim Batholith: Results of U-Pb Isotope (LA-ICP-MS) Dating of Magmatic and Detrital Zircons. Russian Geology and Geophysics 62 (12), 1331–1349. https://doi.org/10.2113/RGG20204223.

17. Kossert K., Amelin Yu., Arnold D., Merle R., Mougeot X., Schmiedel M., Zapata-García D., 2022. Activity Standardization of Two Enriched 40K Solutions for the Determination of Decay Scheme Parameters and the Half-Life. Applied Radiation and Isotopes 188, 110362. https://doi.org/10.1016/j.apradiso.2022.110362.

18. Kossert K., Günther E., 2004. LSC Measurements of the Half-Life of 40K. Applied Radiation and Isotopes 60 (2–4), 459–464. https://doi.org/10.1016/j.apradiso.2003.11.059.

19. Kotov A.B., Vladykin N.V., Yarmolyuk V.V., Sal’nikova E.B., Sotnikova I.A., Yakovleva S.Z., 2013. Permian Age of Burpala Alkaline Pluton, Northern Transbaikalia: Geodynamic Implications. Doklady Earth Sciences 453 (1), 1082–1085. https://doi.org/10.1134/S1028334X13110160.

20. Litvinovsky B.A., Posokhov V.F., Zanvilevich A.N., 1999. New Rb-Sr Data on the Age of Late Paleozoic Granitoids of Western Transbaikalia. Geology and Geophysics 40 (5), 677–685.

21. Litvinovsky B.A., Tsygankov A.A., Jahn B.M., Katzir Y., Be’eri-Shlevin Y., 2011. Origin and Evolution of Overlapping Calc-Alkaline and Alkaline Magmas: The Late Palaeozoic Post-Collisional Igneous Province of Transbaikalia (Russia). Lithos 125 (3–4), 845–874. https://doi.org/10.1016/j.lithos.2011.04.007.

22. Lovera O.M., Richter F.M., Harrison T.M., 1989. The 40Ar/39Ar Thermochronometry for Slowly Cooled Samples Having a Distribution of Diffusion Domain Sizes. Journal of Geophysical Research: Solid Earth 94 (B12), 17917–17935. https://doi.org/10.1029/JB094iB12p17917.

23. Ludwig K.R., 2003. ISOPLOT/Ex: A Geochronological Toolkit for Microsoft Excel. Version 3.00. Berkeley Geochronology Center Special Publication 4, 74 p.

24. Lykhin D.A., Yarmolyuk V.V., Vorontsov A.A., Magazina L.O., 2024. Composition and Thermochronology of Alkaline Granites of the Inguri Massif: On the Problem of Identifying the Factors That Contributed to the Formation of Rare-Metal Mineralization in Alkaline Granites of Western Transbaikalia. Doklady Earth Sciences 516 (2), 964-975. https://doi.org/10.1134/S1028334X24601342.

25. Малютина А.В. Петрогенезис щелочного сиенитового массива Бурпала (Северное Прибайкалье): Дис. … канд. геол.-мин. наук. Новосибирск, 2025. 132 с.

26. Malyutina A.V., Doroshkevich A.G., Starikova A.E., Izbrodin I.A., Prokop’ev I.R., Radomskaya T.A., Kruk M.N., 2025. Composition of Mafic Rock-Forming Minerals in the Rocks of the Burpala Alkaline Massif (Northern Baikal Area). Geology and Geophysics 66 (3), 299–315. https://doi.org/10.2113/RGG20244730.

27. Min K., Mundil R., Renne P.R., Ludwig K.R., 2000. A Test for Systematic Errors in 40Ar/39Ar Geochronology Through Comparison with U-Pb Analysis of a 1.1-Ga Rhyolite. Geochimica et Cosmochimica Acta 64 (1), 73–98. https://doi.org/10.1016/S0016-7037(99)00204-5.

28. Parsons I., Brown W.L., Smith J.V., 1999. 40Ar/39Ar Thermochronology Using Alkali Feldspars: Real Thermal History or Mathematical Mirage of Microtexture? Contributions to Mineralogy and Petrology 136, 92–110. https://doi.org/10.1007/s004100050526.

29. Портнов А.М., Нечаева Е.А. Нефелинизация в приконтактовых зонах щелочного массива Бурпала // Известия АН СССР. Серия геологическая. 1967. № 5. С. 71–76.

30. Рампилова М.Н., Рампилов М.О., Избродин И.А. Особенности вещественного состава и возраст щелочных гранитов Ингурского массива, Западное Забайкалье // Геодинамика и тектонофизика. 2022. Т. 13. № 4. 0647. https://doi.org/10.5800/GT-2022-13-4-0647.

31. Renne P.R., Mundil R., Balco G., Min K., Ludwig K.R., 2010. Joint Determination of 40K Decay Constants and 40Ar*/40K for the Fish Canyon Sanidine Standard, and Improved Accuracy for 40Ar/39Ar Geochronology. Geochimica et Cosmochimica Acta 74 (18), 5349–5367. https://doi.org/10.1016/j.gca.2010.06.017.

32. Rytsk E.Yu., Neimark L.A., Amelin Yu.V., 1998. Paleozoic Granitoids in the Northern Part of the Baikalian Orogenic Area: Age and Past Geodynamic Settings. Geotectonics 32 (5), 379–393.

33. Rytsk E.Yu., Velikoslavinskii S.D., Smyslov S.A., Kotov A.B., Glebovitskii V.A., Bogomolov E.S., Tolmacheva E.V., Kovach V.P., 2017. Geochemical Peculiarities and Sources of Late Paleozoic High-K and Ultrapotassic Syenite of the Synnyr and Tas Massifs (Eastern Siberia). Doklady Earth Sciences 476 (1), 1043–1047. https://doi.org/10.1134/S1028334X17090070.

34. Spikings R.A., Popov D.V., 2021. Thermochronology of Alkali Feldspar and Muscovite at T˃150 °C Using the 40Ar/39Ar Method: A Review. Minerals 11 (9), 1025. https://doi.org/10.3390/min11091025.

35. Cтарикова А.Е., Малютина А.В., Избродин И.А., Дорошкевич А.Г., Радомская Т.А., Исакова А.Т., Семенова Д.В., Корсаков А.В. Минералого-петрографическая и геохимическая характеристика циркона как отражение условий его образования на примере цирконов из пород Бурпалинского массива, Северное Прибайкалье // Геодинамика и тектонофизика. 2024. Т. 15. № 5. 0787. https://doi.org/10.5800/GT-2024-15-5-0787.

36. Steiger R.H., Jäger E., 1977. Subcommission on Geochronology: Convention on the Use of Decay Constants in Geo- and Cosmochronology. Earth and Planetary Science Letters 36 (3), 359–362. https://doi.org/10.1016/0012-821X(77)90060-7.

37. Stukel M., Hariasz L., Di Stefano P.C.F., Rasco B.C., Rykaczewski K.P., Brewer N.T., Stracener D.W., Liu Y. et al., 2023. Rare 40K Decay with Implications for Fundamental Physics and Geochronology. Physical Review Letters 131 (5), 052503. https://doi.org/10.1103/PhysRevLett.131.052503.

38. Travin A.V., Buslov M.M., Bishaev Yu.A., Tsygankov A.A., Mikheev E.I., 2023 Tectonothermal Evolution of Transbaikalia in the Late Paleozoic-Cenozoic: Thermochronology of the Angara-Vitim Granite Batholith. Geology and Geophysics 64 (9), 1086–1097. https://doi.org/10.2113/RGG20234577.

39. Tsygankov A.A., Burmakina G.N., Khubanov V.B., Buyantuev M.D., 2017. Geodynamics of Late Paleozoic Batholith Formation in Western Transbaikalia. Petrology 25 (4), 396–418. https://doi.org/10.1134/S0869591117030043.

40. Tsygankov A.A., Khubanov V.B., Burmakina G.N., Buyantuev M.D., 2023. Periodicity of Endogenic Events of West Transbaikalia and North Mongolia (Eastern Segment of the Central Asian Foldbelt): U-Pb Age of Detrital Zircon from the Present-Day River Sediments. Stratigraphy and Geological Correlation 31 (5), 355–375. https://doi.org/10.1134/S0869593823050088.

41. Tsygankov A.A., Litvinovsky B.A., Jahn B.M., Reichow M.K., Liu D.Y., Larionov A.N., Presnyakov S.L., Lepekhina Ye.N., Sergeev S.A., 2010. Sequence of Magmatic Events in the Late Paleozoic of Transbaikalia, Russia (U-Pb Isotope Data). Russian Geology and Geophysics 51 (9), 972–994. https://doi.org/10.1016/j.rgg.2010.08.007.

42. Tsygankov A.A., Matukov D.I., Berezhnaya N.G., Larionov A.N., Posokhov V.F., Tsyrenov B.Ts., Khromov A.A., Sergeev S.A., 2007. Late Paleozoic Granitoids of Western Transbaikalia: Magma Sources and Stages of Formation. Russian Geology and Geophysics 48 (1), 120–140. https://doi.org/10.1016/j.rgg.2006.12.011.

43. Villa I.M., Hanchar J.M., 2013. K-Feldspar Hygrochronology. Geochimica et Cosmochimica Acta 101, 24–33. https://doi.org/10.1016/j.gca.2012.09.047.

44. Vladykin N.V., Sotnikova I.A., 2017. Petrology, Mineralogical and Geochemical Features and Mantle Sources of the Burpala Rare-Metal Alkaline Massif, Northern Baikal Region. Geoscience Frontiers 8 (4), 711–719. https://doi.org/10.1016/j.gsf.2016.04.006.

45. Vladykin N.V., Sotnikova I.A., Kotov A.B., Yarmolyuk V.V., Salnikova E.B., Yakovleva S.Z., 2014. Structure, Age, and Ore Potential of the Burpala Rare-Metal Alkaline Massif, Northern Baikal Region. Geology Ore Deposits 56 (4), 239–256. https://doi.org/10.1134/S1075701514040060.

46. Yarmolyuk V.V., Budnikov S.V., Kovalenko V.I., Antipin V.S., Goreglyad A.V., Sal’nikova E.B., Kotov A.B., Kozakov I.V. et al., 1997. Geochronology and Geodynamic Setting of the Angara-Vitim Batholith. Petrology 5 (5), 401–414.

47. Yarmolyuk V.V., Kuzmin M.I., Ernst R.E., 2014. Intraplate Geodynamics and Magmatism in the Evolution of the Central Asian Orogenic Belt. Journal of Asian Earth Sciences 93, 158–179. https://doi.org/10.1016/j.jseaes.2014.07.004.

48. Жидков А.Я. Новая Северо-Байкальская щелочная провинция и некоторые черты нефелиноносности пород // Доклады АН СССР. 1961. Т. 140. № 1. С. 181–184.

49. Zorin Yu.A., 1999. Geodynamics of the Western Part of the Mongolia-Okhotsk Collisional Belt, Trans-Baikal Region (Russia) and Mongolia. Tectonophysics 306 (1), 33–56. https://doi.org/10.1016/S0040-1951(99)00042-6.