Chemical U–Th–total Pb dating and structural disorder of monazite-(Ce) from granitoids of the Aduiskii massif, Middle Urals
Pleiades Publishing Ltd - 2017
Tóm tắt
Using the methods of electron probe microanalysis and Raman spectroscopy, the zoning, chemical composition, and disorder in the matrix of accessory monazite extracted from a synplutonic quartz dioritic dyke intruding migmatite, diorite, and fine-granular granite of the Aduiskii massif were studied. It was established that monazite grains contained inner and outer zones. The contributions of chemical and radiation factors to mineral disorder were estimated. The results of chemical U-Th-total Pb dating of mineral are reported. The age 252 ± 4 Ma corresponds to the second maximum of granite formation.
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Tài liệu tham khảo
A. A. Krasnobaev, G. B. Fershtater, F. Bea, and P. Montero, Dokl. Earth Sci. 410 (7), 1096–1100 (2006).
V. S. Popov, V. I. Bogatov, A. Yu. Petrova, and B. V. Belyatskii, Litosfera, No. 4, 3–18 (2003).
G. B. Fershtater, Paleozoic Intrusive Magmatism of the Middle and Southern Urals (Ural Branch Russ. Acad. Sci., Yekaterinburg, 2013) [in Russian].
G. B. Fershtater, A. Gerdes, and V. N. Smirnov, Tr. Inst. Geol. Geokhim., Ural. Otd. Ross. Akad. Nauk, No. 150, 146–150 (2003).
M. L. Williams, M. J. Jercinovic, C. J. Hetherington, Annu. Rev. Earth Planet. Sci. 35 (1), 137–175 (2007).
L. Nasdala, R. Grötzschel, S. Probst, and B. Bleisteiner, Can. Mineral. 48 (2), 351–359 (2010).
L. Nasdala, D. Grambole, and K. Ruschel, Mineral. Petrol. 107 (3), 441–454 (2013).
K. Ruschel, L. Nasdala, A. Kronz, J. M. Hanchar, D.M. Többens, R. Škoda, F. Finger, and A. Möller, Mineral. Petrol. 105 (1–2), 41–55 (2012).
M. D. Zamyatina, Tr. Inst. Geol. Geokhim., Ural. Otd. Ross. Akad. Nauk, No. 163, 92–94 (2016).
J.-M. Montel, S. Foret, M. Veschambre, C. Nicollet, and A. Provost, Chem. Geol. 131, 37–53 (1996).
T. Váczi, Appl. Spectrosc. 68 (11), 1274–1278 (2014).
K. Suzuki and T. Kato, Gondwana Res. 14 (4), 569–586 (2008).
R. C. Ewing, W. J. Weber, and L. R. Corrales, in Reviews in Mineralogy and Geochemistry, Vol. 53: Zircon, Ed. by J. M. Hanchar and P. W. O. Hoskin (Mineralogical Society of America, Chantilly, VA, 2003), pp. 387–425.
E. N. Silva, A. P. Ayala, I. Guedes, C. W. A. Paschoal, R. L. Moreira, C. K. Loong, and L. A. Boatner, Opt. Mater. 29 (2–3), 224–230 (2016).