In situ U-series dating by laser-ablation multi-collector ICPMS:: new prospects for Quaternary geochronology

被引:221
作者
Eggins, SM [1 ]
Grün, R
McCulloch, MT
Pike, AWG
Chappell, J
Kinsley, L
Mortimer, G
Shelley, M
Murray-Wallace, CV
Spötl, C
Taylor, L
机构
[1] Australian Natl Univ, Res Sch Earth Sci, Canberra, ACT 0200, Australia
[2] Australian Natl Univ, Res Sch Pacific & Asian Studies, Canberra, ACT 0200, Australia
[3] Univ Oxford, Res Lab Archaeol & Hist Art, Oxford OX1 3QJ, England
[4] Univ Wollongong, Sch Earth & Environm Sci, Wollongong, NSW 2522, Australia
[5] Univ Innsbruck, Inst Geol & Palaontol, A-6020 Innsbruck, Austria
基金
英国自然环境研究理事会;
关键词
D O I
10.1016/j.quascirev.2005.07.006
中图分类号
P9 [自然地理学];
学科分类号
0705 ; 070501 ;
摘要
The capabilities and potential applications of in situ dating of Quaternary materials using laser ablation-MC-ICPMS are explored. U-234/U-238 and Th-230/U-234 can be measured with precision sufficient for dating at a spatial resolution of 100 mu m or better in samples that contain as a little as 1 ppm uranium. Moreover, U and Th concentrations and U-series isotope ratios can be continuously profiled to determine changes in age that occur with sample growth (e.g. in speleothems). These capabilities additionally permit the dating of bones, teeth and possibly molluscs, which are subject to post-mortem open-system behaviour of Useries isotopes, and can be employed to elucidate processes of U-series migration during weathering and diagenesis. A drawback of laser ablation-MC-ICPMS is that it cannot in general provide U-series age estimates with the high precision and accuracy of conventional TIMS or solution MC-ICPMS methods. However, sample preparation is straightforward, the amount of sample consumed negligible, and it can be used to rapidly characterise or screen and select samples from which more precise and accurate dates can be obtained using conventional methods. Given further instrumental developments and the establishment of suitable matrix-matched standards for carbonates and other materials, we foresee that laser ablation-MC-ICPMS will play an increasingly important role in Quaternary dating research. (c) 2005 Published by Elsevier Ltd.
引用
收藏
页码:2523 / 2538
页数:16
相关论文
共 67 条
[1]   Deep-sea coral evidence for rapid change in ventilation of the deep North Atlantic 15,400 years ago [J].
Adkins, JF ;
Cheng, H ;
Boyle, EA ;
Druffel, ERM ;
Edwards, RL .
SCIENCE, 1998, 280 (5364) :725-728
[2]   The use of Pt guard electrode in inductively coupled plasma sector field mass spectrometry: advantages and limitations [J].
Appelblad, PK ;
Rodushkin, I ;
Baxter, DC .
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, 2000, 15 (04) :359-364
[3]   CALIBRATION OF THE C-14 TIMESCALE OVER THE PAST 30,000 YEARS USING MASS-SPECTROMETRIC U-TH AGES FROM BARBADOS CORALS [J].
BARD, E ;
HAMELIN, B ;
FAIRBANKS, RG ;
ZINDLER, A .
NATURE, 1990, 345 (6274) :405-410
[4]   U-234 ANOMALIES IN CORALS OLDER THAN 150,000 YEARS [J].
BARD, E ;
FAIRBANKS, RG ;
HAMELIN, B ;
ZINDLER, A ;
HOANG, CT .
GEOCHIMICA ET COSMOCHIMICA ACTA, 1991, 55 (08) :2385-2390
[5]   Radiocarbon calibration by means of mass spectrometric 230Th/234U and 14C ages of corals:: An updated database including samples from Barbados, Mururoa and Tahiti [J].
Bard, E ;
Arnold, M ;
Hamelin, B ;
Tisnerat-Laborde, N ;
Cabioch, G .
RADIOCARBON, 1998, 40 (03) :1085-1092
[6]   Extremely large variations of atmospheric 14C concentration during the last glacial period [J].
Beck, JW ;
Richards, DA ;
Edwards, RL ;
Silverman, BW ;
Smart, PL ;
Donahue, DJ ;
Hererra-Osterheld, S ;
Burr, GS ;
Calsoyas, L ;
Jull, AJT ;
Biddulph, D .
SCIENCE, 2001, 292 (5526) :2453-2458
[7]  
BERNAL JP, IN PRESS J ANAL ATOM
[8]   Introduction to U-series geochemistry [J].
Bourdon, B ;
Turner, S ;
Henderson, GM ;
Lundstrom, CC .
URANIUM-SERIES GEOCHEMISTRY, 2003, 52 :1-21
[9]   COMMENT ON THE NEW MAXILLARY FINDS FROM KLASIES RIVER, SOUTH-AFRICA [J].
BRAUER, G ;
DEACON, HJ ;
ZIPFEL, F .
JOURNAL OF HUMAN EVOLUTION, 1992, 23 (05) :419-422
[10]   CHRONOLOGICAL POTENTIAL (TH/U) OF PLEISTOCENE MEDITERRANEAN FAUNA - MARINE TERRACES OF MURCIA AND ALICANTE REGION, SOUTHEASTERN SPAIN [J].
CAUSSE, C ;
GOY, JL ;
ZAZO, C ;
HILLAIREMARCEL, C .
GEODINAMICA ACTA, 1993, 6 (02) :121-134