Further Characterisation of the 91500 Zircon Crystal
Michael Wiedenbeck
(1)
,
John Hanchar
(2)
,
William Peck
(3)
,
Paul Sylvester
(4)
,
John Valley
(5)
,
Martin Whitehouse
(6)
,
Andreas Kronz
(7)
,
Yuichi Morishita
(8)
,
Lutz Nasdala
(9)
,
J. Fiebig
(10)
,
I. Franchi
(11)
,
J.-P. Girard
(12)
,
R.C. Greenwood
(11)
,
R. Hinton
(13)
,
N. Kita
(8)
,
P.R.D. Mason
(14)
,
M. Norman
(15)
,
M. Ogasawara
(8)
,
P.M. Piccoli
(16)
,
D. Rhede
(1)
,
H. Satoh
(8)
,
B. Schulz-Dobrick
(17)
,
O. Skår
(18)
,
Mj. Spicuzza
(5)
,
K. Terada
(19)
,
A. Tindle
(11)
,
S. Togashi
(8)
,
T. Vennemann
(20)
,
Q. Xie
(21)
,
Y.-F. Zheng
(22)
1
GFZ -
German Research Centre for Geosciences - Helmholtz-Centre Potsdam
2 Department of Earth and Environmental Sciences, George Washington University
3 Colgate University
4 MUN - Memorial University of Newfoundland = Université Memorial de Terre-Neuve [St. John's, Canada]
5 University of Wisconsin-Madison
6 NRM - Swedish Museum of Natural History
7 GZG - Geowissenschaftliches Zentrum Göttingen
8 GSJ - Geological Survey of Japan
9 Institut für Geowissenschaften [Mainz]
10 UNIL - Université de Lausanne = University of Lausanne
11 OU - The Open University [Milton Keynes]
12 BRGM - Bureau de Recherches Géologiques et Minières
13 Edin. - University of Edinburgh
14 Universiteit Utrecht / Utrecht University [Utrecht]
15 UTAS - University of Tasmania [Hobart]
16 University of Maryland [Eastern Shore]
17 JGU - Johannes Gutenberg - Universität Mainz = Johannes Gutenberg University
18 NGU - Geological Survey of Norway
19 Hiroshima City University
20 Eberhard Karls Universität Tübingen = University of Tübingen
21 U of S - University of Saskatchewan [Saskatoon, Canada]
22 USTC - University of Science and Technology of China [Hefei]
2 Department of Earth and Environmental Sciences, George Washington University
3 Colgate University
4 MUN - Memorial University of Newfoundland = Université Memorial de Terre-Neuve [St. John's, Canada]
5 University of Wisconsin-Madison
6 NRM - Swedish Museum of Natural History
7 GZG - Geowissenschaftliches Zentrum Göttingen
8 GSJ - Geological Survey of Japan
9 Institut für Geowissenschaften [Mainz]
10 UNIL - Université de Lausanne = University of Lausanne
11 OU - The Open University [Milton Keynes]
12 BRGM - Bureau de Recherches Géologiques et Minières
13 Edin. - University of Edinburgh
14 Universiteit Utrecht / Utrecht University [Utrecht]
15 UTAS - University of Tasmania [Hobart]
16 University of Maryland [Eastern Shore]
17 JGU - Johannes Gutenberg - Universität Mainz = Johannes Gutenberg University
18 NGU - Geological Survey of Norway
19 Hiroshima City University
20 Eberhard Karls Universität Tübingen = University of Tübingen
21 U of S - University of Saskatchewan [Saskatoon, Canada]
22 USTC - University of Science and Technology of China [Hefei]
Abstract
This paper reports the results from a second characterisation of the 91500 zircon, including data from electron probe microanalysis, laser ablation inductively coupled plasma-mass spectrometry (LA-ICP-MS), secondary ion mass spectrometry (SIMS) and laser fluorination analyses. The focus of this initiative was to establish the suitability of this large single zircon crystal for calibrating in situ analyses of the rare earth elements and oxygen isotopes, as well as to provide working values for key geochemical systems. In addition to extensive testing of the chemical and structural homogeneity of this sample, the occurrence of banding in 91500 in both backscattered electron and cathodoluminescence images is described in detail. Blind intercomparison data reported by both LA-ICP-MS and SIMS laboratories indicate that only small systematic differences exist between the data sets provided by these two techniques. Furthermore, the use of NIST SRM 610 glass as the calibrant for SIMS analyses was found to introduce little or no systematic error into the results for zircon. Based on both laser fluorination and SIMS data, zircon 91500 seems to be very well suited for calibrating in situ oxygen isotopic analyses.