Abstract This study utilized SHRIMP, LA MC–ICP–MS and ID-TIMS analytical techniques and presents for the first time U–Pb age, Lu-Hf-isotope features of zircon and the Nd-isotope composition of variously mineralized rocks from the ore-bearing Dyumtaley intrusion, one of the most promising targets for platinum-group element (PGE)-Cu–Ni ores within the Taimyr metallogenic province. 206 Pb/ 238 U ages of zircon from monzodiorite and gabbro of the Dyumtaley intrusion (250.9 ± 3.1 to 253 ± 1 Ma, respectively) indicate their close temporal relationship to a Permo-Triassic boundary and synchronism with a tholeiite-basaltic volcanism of the Siberian platform. Hafnium-neodymium isotope signatures (εHf ( t ) 6.9–8.5, εNd ( t ) 2.9–4.2) imply the significant role of the depleted mantle material in magma generation of the Dyumtaley intrusion.

中文翻译：

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Dyumtaley 含矿侵入体（泰米尔，俄罗斯）岩石中锆石和 Sm-Nd 同位素的铀-铅和 Lu-Hf 同位素系统学：关于贫化地幔在其成因中的作用的新证据

摘要 本研究利用 SHRIMP、LA MC-ICP-MS 和 ID-TIMS 分析技术，首次提出了锆石的 U-Pb 年龄、Lu-Hf 同位素特征和矿石中各种矿化岩石的 Nd 同位素组成。 -轴承 Dyumtaley 侵入体，是 Taimyr 成矿省内铂族元素 (PGE)-Cu-Ni 矿石最有希望的目标之一。来自 Dyumtaley 侵入体二长闪长岩和辉长岩的 206 Pb/238 U 年龄（分别为 250.9 ± 3.1 至 253 ± 1 Ma）表明它们与二叠纪-三叠纪边界的密切时间关系以及与拉斑玄武岩火山活动的同步性平台。铪-钕同位素特征（εHf ( t ) 6.9-8.5, εNd ( t ) 2.9-4.2）暗示了贫化地幔物质在 Dyumtaley 侵入岩浆生成中的重要作用。