Abstract

The principal possibility of using high-uranium metamict zircon with a high self-irradiation α-dose for U–Pb geochronological studies (ID-TIMS) is demonstrated. The application of the optimal parameters of “chemical abrasion,” accompanied by preliminary high-temperature annealing, allowed us to estimate the age of Li–F granites of the Turga massif (Eastern Transbaikalia) (146 ± 4 Ma and 141 ± 1 Ma).

中文翻译：

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高铀Metamict锆石的U-Pb (CA-ID-TIMS)年代学研究

摘要

证明了在 U-Pb 地质年代学研究 (ID-TIMS) 中使用具有高自辐照 α 剂量的高铀超混合锆石的主要可能性。“化学磨损”的最佳参数的应用，伴随着初步的高温退火，使我们能够估计图尔加地块（东外贝加尔）（146 ± 4 Ma 和 141 ± 1 Ma）的 Li-F 花岗岩年龄.