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Geochronology and geochemistry of single-grain zircons; simultaneous in-situ analysis of U-Pb age and trace elements by LAM-ICP-MS

Li Xian-Hua, Liang Xirong, Sun Min, Liu Ying and Tu Xianglin
Geochronology and geochemistry of single-grain zircons; simultaneous in-situ analysis of U-Pb age and trace elements by LAM-ICP-MS
European Journal of Mineralogy (October 2000) 12 (5): 1015-1024

Abstract

Simultaneous in-situ analysis of U-Pb age and 26 trace elements for single-grain zircon using the LAMICPMS technique was successfully achieved in this study. The precision of analysis is 1 to 3% for (super 207) Pb/ (super 206) Pb isotopic ratios, 2 and 8% for (super 206) Pb/ (super 238) U ratios and 5 to 15% for most of the other trace elements. The concordia U-Pb and the mean (super 206) Pb/ (super 238) U ages for zircon grain of 1800 Ma to 150 Ma by LAM-ICP-MS spot analysis are in good agreement within analytical errors with the TIMS and SHRIMP result. All zircon grains are uniquely LREE-depleted in chondrite-normalized REE patterns. Zircon formed in mantle-derived magmas is significantly different from that of granitoids with regard to contents of many trace elements (i.e., U, Th, Sigma REE, Y, Nb and P) and REE patterns (i.e., Nd/Yb ratio and Ce and Eu anomalies). This combined geochronological and geochemical investigation provides valuable information on timing and genesis of zircon.


ISSN: 0935-1221
Serial Title: European Journal of Mineralogy
Serial Volume: 12
Serial Issue: 5
Title: Geochronology and geochemistry of single-grain zircons; simultaneous in-situ analysis of U-Pb age and trace elements by LAM-ICP-MS
Affiliation: Chinese Academy of Sciences, Guangzhou Institute of Geochemistry, Guangzhou, China
Pages: 1015-1024
Published: 200010
Text Language: English
Publisher: Schweizerbart'sche Verlagsbuchhandlung (Naegele u. Obermiller), Stuttgart, Federal Republic of Germany
References: 19
Accession Number: 2001-000775
Categories: GeochronologyMineralogy of silicates
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 3 tables
Secondary Affiliation: University of Hong Kong, CHN, China
Country of Publication: Germany
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute.
Update Code: 200101
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