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In Situ Oxygen Isotope Determination in Serpentine Minerals by SIMS: Addressing Matrix Effects and Providing New Insights on Serpentinisation at Hole BA1B (Samail ophiolite, Oman)
期刊名称： Geostandards and Geoanalytical Rearch
南美洲地理位置作者： Maria Rosa Scicchitano,Michael J. Spicuzza,Eric T. Ellison,David
Tuschel,Alexis S. Templeton,John W. Valley
孝心不能等待作者机构： Department of Geoscience University of Wisconsin Madison 53706 WI
diy手工制作店USA,Geological Sciences University of Colorado‐Boulder Boulder CO
USA,HORIBA Scientific Piscataway 08854 NJ USA
年份： 2020年
关键词： rpentine;Oman;oxygen isotopes;SIMS;reference materials
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化学用英语怎么说>圆周率前60位
摘要：The ability to constrain the petrogenesis of multiple rpentine generations recorded at the microscale is crucial for estimating the extent and conditions of modern versus fossil rpentinisation in ophiolites. To address matrix bias effects during oxygen isotope analysis by SIMS, we prent the first investigation analysing antigorite in the compositional range Mg# = 77.5–99.5 mole %, using a CAMECA IMS80 condary ion mass spectrometer. Spot‐to﹕pot homogeneity is ≤ 0.5‰ (2s) for the new antigorite reference materials. The relative bias between antigorite reference materials with different Mg/Fe ratios is described by a cond order polynomial, and a maximum difference in bias of ~ 1.8‰ was measured for Mg# ~ 78 to 100. We obrved a bias up to ~ 1.0‰ between lizardite and antigorite attributed to their
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