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Highly precise Re-Os dating for molybdenite using alkaline fusion and NTIMS

Published on Mar 1, 1998in Talanta4.92
· DOI :10.1016/S0039-9140(97)00198-7
R. J. Markey16
Estimated H-index: 16
(CSU: Colorado State University),
Holly J. Stein32
Estimated H-index: 32
(CSU: Colorado State University),
John W. Morgan47
Estimated H-index: 47
(CSU: Colorado State University)
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Abstract
Abstract The technique described in this paper represents the modification and combination of two previously existing methods, alkaline fusion and negative thermal ion mass spectrometry (NTIMS). We have used this technique to analyze repeatedly a homogeneous molybdenite powder used as a reference standard in our laboratory. Analyses were made over a period of 18 months, using four different calibrations of two different spike solutions. The age of this standard reproduces at a level of ±0.13%. Each individual age analysis carries an uncertainty of about 0.4% that includes the uncertainty in the decay constant for 187 Re. This new level of resolution has allowed us to recognize real differences in ages for two grain-size populations of molybdenite from some Archean samples.
  • References (9)
  • Citations (154)
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References9
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#1Jason Jiun-San Shen (California Institute of Technology)H-Index: 10
#2D. A. Papanastassiou (California Institute of Technology)H-Index: 51
Last.G. J. Wasserburg (California Institute of Technology)H-Index: 93
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#1Michael I. Smoliar (UMD: University of Maryland, College Park)H-Index: 4
#2Richard J. Walker (UMD: University of Maryland, College Park)H-Index: 62
Last.John W. Morgan (CSU: Colorado State University)H-Index: 47
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#1John W. Morgan (USGS: United States Geological Survey)H-Index: 47
#2D.W. Golightly (USGS: United States Geological Survey)H-Index: 2
Last.A.F. Dorrzapf (USGS: United States Geological Survey)H-Index: 2
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#1Robert A. Creaser (California Institute of Technology)H-Index: 50
#2D. A. Papanastassiou (California Institute of Technology)H-Index: 51
Last.G. J. Wasserburg (California Institute of Technology)H-Index: 93
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#1Manfred Lindner (LLNL: Lawrence Livermore National Laboratory)H-Index: 6
#2D. A. Leich (LLNL: Lawrence Livermore National Laboratory)H-Index: 2
Last.Richard J. Borg (LLNL: Lawrence Livermore National Laboratory)H-Index: 8
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#1O. V. Yakubovich (SPbU: Saint Petersburg State University)H-Index: 3
#2A. M. Gedz (SPbU: Saint Petersburg State University)
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#1Gayle E. Febbo (UBC: University of British Columbia)
#2Lori A. Kennedy (UBC: University of British Columbia)H-Index: 11
Last.Holly J. Stein (CSU: Colorado State University)H-Index: 32
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#1Chunming Han (CAS: Chinese Academy of Sciences)H-Index: 33
#2Wenjiao Xiao (CAS: Chinese Academy of Sciences)H-Index: 58
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#2Jeremy P. Richards (CAS: Chinese Academy of Sciences)H-Index: 37
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