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GZ7 and GZ8-Two Zircon Reference Materials for SIMS U-Pb Geochronology

文献类型：期刊论文

作者Nasdala, Lutz1; Corfu, Fernando2,3; Schoene, Blair4; Tapster, Simon R.5; Wall, Corey J.6; Schmitz, Mark D.6; Ovtcharova, Maria7; Schaltegger, Urs7; Kennedy, Allen K.8; Kronz, Andreas9
刊名GEOSTANDARDS AND GEOANALYTICAL RESEARCH
出版日期2018-12-01
卷号42期号:4页码:431-457
ISSN号1639-4488
关键词zircon reference material SIMS U-Pb geochronology Ti-in-zircon geothermometry
DOI10.1111/ggr.12239
英文摘要Here, we document a detailed characterisation of two zircon gemstones, GZ7 and GZ8. Both stones had the same mass at 19.2 carats (3.84 g) each; both came from placer deposits in the Ratnapura district, Sri Lanka. The U-Pb data are in both cases concordant within the uncertainties of decay constants and yield weighted mean Pb-206/U-238 ages (95% confidence uncertainty) of 530.26 Ma +/- 0.05 Ma (GZ7) and 543.92 Ma +/- 0.06 Ma (GZ8). Neither GZ7 nor GZ8 have been subjected to any gem enhancement by heating. Structure-related parameters correspond well with the calculated alpha doses of 1.48 x 10(18) g(-1) (GZ7) and 2.53 x 10(18) g(-1) (GZ8), respectively, and the (U-Th)/He ages of 438 Ma +/- 3 Ma (2s) for GZ7 and 426 Ma +/- 9 Ma (2s) for GZ8 are typical of unheated zircon from Sri Lanka. The mean U mass fractions are 680 mu g g(-1) (GZ7) and 1305 mu g g(-1) (GZ8). The two zircon samples are proposed as reference materials for SIMS (secondary ion mass spectrometry) U-Pb geochronology. In addition, GZ7 (Ti mass fractions 25.08 mu g g(-1) +/- 0.18 mu g g(-1); 95% confidence uncertainty) may prove useful as reference material for Ti-in-zircon temperature estimates.
WOS关键词HF ISOTOPE MEASUREMENTS ; TI-IN-ZIRCON ; RADIATION-DAMAGE ; NATURAL ZIRCON ; LU-HF ; MASS-SPECTROMETRY ; SINGLE ZIRCONS ; HIGH-PRECISION ; ENERGY-LEVELS ; HALF-LIVES
资助项目Australian Government ; Department of Education, Science and Training (DEST) Systemic Infrastructure Grants ; ARC Linkage Infrastructure, Equipment and Facilities (LIEF) ; Macquarie University ; Faculty of Geosciences, Geography and Astronomy, University of Vienna ; Austrian Science Fund (FWF)[P24448-N19] ; US National Science Foundation[EAR-1524336]
WOS研究方向Geochemistry & Geophysics
语种英语
出版者WILEY
WOS记录号WOS:000452527400002
资助机构Australian Government ; Australian Government ; Department of Education, Science and Training (DEST) Systemic Infrastructure Grants ; Department of Education, Science and Training (DEST) Systemic Infrastructure Grants ; ARC Linkage Infrastructure, Equipment and Facilities (LIEF) ; ARC Linkage Infrastructure, Equipment and Facilities (LIEF) ; Macquarie University ; Macquarie University ; Faculty of Geosciences, Geography and Astronomy, University of Vienna ; Faculty of Geosciences, Geography and Astronomy, University of Vienna ; Austrian Science Fund (FWF) ; Austrian Science Fund (FWF) ; US National Science Foundation ; US National Science Foundation ; Australian Government ; Australian Government ; Department of Education, Science and Training (DEST) Systemic Infrastructure Grants ; Department of Education, Science and Training (DEST) Systemic Infrastructure Grants ; ARC Linkage Infrastructure, Equipment and Facilities (LIEF) ; ARC Linkage Infrastructure, Equipment and Facilities (LIEF) ; Macquarie University ; Macquarie University ; Faculty of Geosciences, Geography and Astronomy, University of Vienna ; Faculty of Geosciences, Geography and Astronomy, University of Vienna ; Austrian Science Fund (FWF) ; Austrian Science Fund (FWF) ; US National Science Foundation ; US National Science Foundation ; Australian Government ; Australian Government ; Department of Education, Science and Training (DEST) Systemic Infrastructure Grants ; Department of Education, Science and Training (DEST) Systemic Infrastructure Grants ; ARC Linkage Infrastructure, Equipment and Facilities (LIEF) ; ARC Linkage Infrastructure, Equipment and Facilities (LIEF) ; Macquarie University ; Macquarie University ; Faculty of Geosciences, Geography and Astronomy, University of Vienna ; Faculty of Geosciences, Geography and Astronomy, University of Vienna ; Austrian Science Fund (FWF) ; Austrian Science Fund (FWF) ; US National Science Foundation ; US National Science Foundation ; Australian Government ; Australian Government ; Department of Education, Science and Training (DEST) Systemic Infrastructure Grants ; Department of Education, Science and Training (DEST) Systemic Infrastructure Grants ; ARC Linkage Infrastructure, Equipment and Facilities (LIEF) ; ARC Linkage Infrastructure, Equipment and Facilities (LIEF) ; Macquarie University ; Macquarie University ; Faculty of Geosciences, Geography and Astronomy, University of Vienna ; Faculty of Geosciences, Geography and Astronomy, University of Vienna ; Austrian Science Fund (FWF) ; Austrian Science Fund (FWF) ; US National Science Foundation ; US National Science Foundation
源URL[http://ir.iggcas.ac.cn/handle/132A11/90288]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Nasdala, Lutz
作者单位1.Univ Wien, Inst Mineral & Kristallog, Althanstr 14, A-1090 Vienna, Austria
2.Univ Oslo, Dept Geosci, POB 1047, N-0316 Oslo, Norway
3.Univ Oslo, CEED Ctr Earth Evolut & Dynam, POB 1047, N-0316 Oslo, Norway
4.Princeton Univ, Dept Geosci, 219 Guyot Hall, Princeton, NJ 08544 USA
5.British Geol Survey, Nat Environm Res Council, Isotope Geosci Lab, NIGL, Nicker Hill, Nottingham NG12 5GG, England
6.Boise State Univ, Isotope Geol Lab, 1910 Univ Dr, Boise, ID 83725 USA
7.Univ Geneva, Dept Earth Sci, Rue Maraichers 13, CH-1205 Geneva, Switzerland
8.Curtin Univ, John de Laeter Ctr, Bldg 301, Perth, WA 6845, Australia
9.Georg August Univ Gottingen, Geowissensch Zentrum, Goldschmidtstr 1, D-37077 Gottingen, Germany
10.Univ Arizona, Dept Geosci, 1040 4th St, Tucson, AZ 85721 USA
推荐引用方式
GB/T 7714		 Nasdala, Lutz,Corfu, Fernando,Schoene, Blair,et al. GZ7 and GZ8-Two Zircon Reference Materials for SIMS U-Pb Geochronology[J]. GEOSTANDARDS AND GEOANALYTICAL RESEARCH,2018,42(4):431-457.
APA Nasdala, Lutz.,Corfu, Fernando.,Schoene, Blair.,Tapster, Simon R..,Wall, Corey J..,...&Giester, Gerald.(2018).GZ7 and GZ8-Two Zircon Reference Materials for SIMS U-Pb Geochronology.GEOSTANDARDS AND GEOANALYTICAL RESEARCH,42(4),431-457.
MLA Nasdala, Lutz,et al."GZ7 and GZ8-Two Zircon Reference Materials for SIMS U-Pb Geochronology".GEOSTANDARDS AND GEOANALYTICAL RESEARCH 42.4(2018):431-457.

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