Spot zircon U-Pb isotope analysis by ICP-MS coupled with a frequency quintupled (213 nm) Nd-YAG laser system

被引：85

作者：

Xia, XP ^{[1
]}

Sun, M ^{[1
]}

Zhao, GC ^{[1
]}

Li, HM ^{[1
]}

Zhou, MF ^{[1
]}

机构：

[1] Univ Hong Kong, Dept Earth Sci, Hong Kong, Hong Kong, Peoples R China

来源：

GEOCHEMICAL JOURNAL | 2004年 / 38卷 / 02期

关键词：

zircon; ICP-MS; geochronology; laser ablation; U-Pb isotope;

D O I：

10.2343/geochemj.38.191

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

A method for precise determination of (207)b/Pb-206 and Pb-206/U-238 ratios of zircon was developed, using an ICP-MS with 213 nm Nd-YAG laser ablation system. Compared with the conventional 266 nm laser, the 213 nm laser has advantages of high absorption of energy and effective reduction of U-Pb elemental fractionation. The maximum fractionation during the first 80 seconds is about 1.3 times the initial value. In addition, by using a linear fit of Pb-206/U-238 ratios acquired during a depth profile analysis, U-Pb elemental fractionation can be further corrected and the precision of Pb-206/ U-238 ratio measurement is improved to around 3% (2sigma).

引用

页码：191 / 200

页数：10

共 26 条

[1] THE DIFFICULTIES OF DATING MAFIC DYKES - AN ANTARCTIC EXAMPLE [J].

BLACK, LP ;

KINNY, PD ;

SHERATON, JW .

CONTRIBUTIONS TO MINERALOGY AND PETROLOGY, 1991, 109 (02) :183-194

[2] Evaluation of Pb-Pb and U-Pb laser ablation ICP-MS zircon dating using matrix-matched calibration samples with a frequency quadrupled (266 nm) Nd-YAG laser [J].

Bruguier, O ;

Télouk, P ;

Cocherie, A ;

Fouillac, AM ;

Albarède, F .

GEOSTANDARDS NEWSLETTER-THE JOURNAL OF GEOSTANDARDS AND GEOANALYSIS, 2001, 25 (2-3) :361-373

[3] Deposition and element fractionation processes during atmospheric pressure laser sampling for analysis by ICP-MS [J].

Eggins, SM ;

Kinsley, LPJ ;

Shelley, JMG .

APPLIED SURFACE SCIENCE, 1998, 127 :278-286

[4] LEAD GEOCHRONOLOGY OF ZIRCON BY LASERPROBE-INDUCTIVELY COUPLED PLASMA-MASS SPECTROMETRY (LP-ICPMS) [J].

FENG, R ;

MACHADO, N ;

LUDDEN, J .

GEOCHIMICA ET COSMOCHIMICA ACTA, 1993, 57 (14) :3479-3486

[5] THE APPLICATION OF LASER-ABLATION MICROPROBE-INDUCTIVELY COUPLED PLASMA-MASS SPECTROMETRY (LAM-ICP-MS) TO IN-SITU (U)-PB GEOCHRONOLOGY [J].

FRYER, BJ ;

JACKSON, SE ;

LONGERICH, HP .

CHEMICAL GEOLOGY, 1993, 109 (1-4) :1-8

[6] SHRIMP U-Pb zircon geochronology of the Fuping Complex: implications for formation and assembly of the North China Craton [J].

Guan, H ;

Sun, M ;

Wilde, SA ;

Zhou, XH ;

Zhai, MG .

PRECAMBRIAN RESEARCH, 2002, 113 (1-2) :1-18

[7] Effect of particle size distribution on ICP-induced elemental fractionation in laser ablation-inductively coupled plasma-mass spectrometry [J].

Guillong, M ;

Günther, D .

JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, 2002, 17 (08) :831-837

[8] OBSERVATIONS AND CONTROLS ON THE OCCURRENCE OF INHERITED ZIRCON IN CONCORD-TYPE GRANITOIDS, NEW-HAMPSHIRE [J].

HARRISON, TM ;

ALEINIKOFF, JN ;

COMPSTON, W .

GEOCHIMICA ET COSMOCHIMICA ACTA, 1987, 51 (09) :2549-2558

[9] Soft ablation technique for laser ablation inductively coupled plasma mass spectrometry [J].

Hirata, T .

JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, 1997, 12 (11) :1337-1342

[10] U-PB ISOTOPE GEOCHRONOLOGY OF ZIRCON - EVALUATION OF THE LASER PROBE-INDUCTIVELY COUPLED PLASMA-MASS SPECTROMETRY TECHNIQUE [J].

HIRATA, T ;

NESBITT, RW .

GEOCHIMICA ET COSMOCHIMICA ACTA, 1995, 59 (12) :2491-2500

← 1 2 3 →