U-Pb dating of zircons from PZ3-MZ igneous complexes of Transbaikalia by sector-field mass spectrometry with laser sampling: technique and comparison with SHRIMP

被引:87
|
作者
Khubanov, V. B. [1 ]
Buyantuev, M. D. [1 ]
Tsygankov, A. A. [1 ,2 ]
机构
[1] Russian Acad Sci, Siberian Branch, Inst Geol, Ul Sakhyanovoi 6a, Ulan Ude 670047, Russia
[2] Buryat State Univ, Ul Smolina 24a, Ulan Ude 670000, Russia
基金
俄罗斯基础研究基金会; 俄罗斯科学基金会;
关键词
U-Pb zircon dating; LA-SF-ICP-MS; granitoids; Transbaikalia; Russia; LATE PALEOZOIC GRANITOIDS; WESTERN TRANSBAIKALIA; ICP-MS; ABLATION; GEOCHRONOLOGY; AGE;
D O I
10.1016/j.rgg.2016.01.013
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
U-Pb zircon dating by laser ablation and sector-field mass spectrometry with inductively coupled plasma (LA-SF-ICP-MS) is an accessible local method with easy sample preparation. At the Geological Institute, Ulan-Ude, this method was applied using a Thermo Scientific Element XR single-collector SF ICP mass spectrometer and a UP-213 (New Wave Research) laser ablation system. Measurements for standard zircons showed the error of dating less than 2%. The results of U-Pb LA-SF-ICP-MS dating of zircon from Late Paleozoic granitoids of western Transbaikalia confirm the overlapping of the time intervals of formation of the Barguzin (330-290 Ma), Chivyrkui (305-285 Ma), and Zaza (305-285 Ma) intrusive complexes. (C) 2016, V.S. Sobolev IGM, Siberian Branch of the RAS. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码:190 / 205
页数:16
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