TY - JOUR
T1 - Rhyolitic and basaltic reference materials for TC/EA analysis
T2 - Investigation of water extraction and D/H ratios
AU - Bindeman, I. N.
AU - Hudak, M. R.
AU - Palandri, J. P.
AU - Qi, H.
AU - Milovsky, R.
AU - Hervig, R. L.
AU - Perfit, M. R.
N1 - Funding Information:
This research is supported by NSF grant EAR-1822977 . The Arizona State University SIMS Facility is supported by a grant from the US National Science Foundation ( EAR-1819550 ). MRP field and analytical research supported by NSF-OCE-9402360 and OCE-0138088 .
Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2021/11/20
Y1 - 2021/11/20
N2 - Increasingly, water and D/H ratios of silicic and basaltic glasses are used to investigate magmatic degassing and secondary hydration, as well as for study these parameters in the mantle and crustal magmas. The advent of the High Temperature Conversion Element Analyzer (TC/EA) continuous flow mass spectrometry made the determination of hydrogen isotopes relatively quick and precise (±0.04 wt% H2O and 1–3‰ δ2H). Many labs around the world have such systems, thus there is a need to develop both silicic and basaltic volcanic glass reference materials (RMs) that can be used for interlaboratory comparison by bulk and microanalytical methods. Here, we report results of such investigation run against solid RMs (USGS micas) and water RMs (including VSMOW) in three different labs and describe analytical protocols. We report on the effects of glass size fraction, the mass of aliquots measured, and yield dependency for two glasses: UOR (drill cutting of IDDP-1 rhyolite, Iceland) and UOB (an E-MORB basalt from the East Pacific Rise). Proposed RM values are: UOB rhyolitic glass (n = 31): H2O=1.84±0.06wt%1s.d.,andδ2H=−115.5±2.6‰1s.d. UOB basaltic glass (n = 60): H2O=0.37±0.03wt%1s.d.,andδ2H=−82.1±5.7‰1s.d. Glass reference materials are available in 100 mg quantities from the Stable Isotope Laboratory at the University of Oregon for a nominal fee.
AB - Increasingly, water and D/H ratios of silicic and basaltic glasses are used to investigate magmatic degassing and secondary hydration, as well as for study these parameters in the mantle and crustal magmas. The advent of the High Temperature Conversion Element Analyzer (TC/EA) continuous flow mass spectrometry made the determination of hydrogen isotopes relatively quick and precise (±0.04 wt% H2O and 1–3‰ δ2H). Many labs around the world have such systems, thus there is a need to develop both silicic and basaltic volcanic glass reference materials (RMs) that can be used for interlaboratory comparison by bulk and microanalytical methods. Here, we report results of such investigation run against solid RMs (USGS micas) and water RMs (including VSMOW) in three different labs and describe analytical protocols. We report on the effects of glass size fraction, the mass of aliquots measured, and yield dependency for two glasses: UOR (drill cutting of IDDP-1 rhyolite, Iceland) and UOB (an E-MORB basalt from the East Pacific Rise). Proposed RM values are: UOB rhyolitic glass (n = 31): H2O=1.84±0.06wt%1s.d.,andδ2H=−115.5±2.6‰1s.d. UOB basaltic glass (n = 60): H2O=0.37±0.03wt%1s.d.,andδ2H=−82.1±5.7‰1s.d. Glass reference materials are available in 100 mg quantities from the Stable Isotope Laboratory at the University of Oregon for a nominal fee.
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U2 - 10.1016/j.chemgeo.2021.120486
DO - 10.1016/j.chemgeo.2021.120486
M3 - Article
AN - SCOPUS:85113251783
SN - 0009-2541
VL - 583
JO - Chemical Geology
JF - Chemical Geology
M1 - 120486
ER -