Abstract

Plagioclase, one of the most common rock‐forming minerals, can provide useful information on the crystallisation environment, magmatic evolution and thermal history of host rocks. Owing to matrix effects, trace element and Sr isotope in situ measurements in plagioclase have been hindered by a shortage of reference materials for quality control and method validation. A natural plagioclase sample from Madagascar was evaluated for its feasibility as a reference material for Sr isotope and element determination. Measurement results from EPMA, LA‐ICP‐MS and LA‐MC‐ICP‐MS indicate that MGP‐1 plagioclase is homogeneous at the μm–mm scale with respect to major elements (RSD < 4%), most trace elements (RSD < 15%), and 87Sr/86Sr ratio (2s = 0.00013). Major and trace elements were also determined using XRF and solution ICP‐MS, showing good agreement within 10% from in situ measurement results. The 87Sr/86Sr ratio obtained by TIMS ranged from 0.703441 to 0.703477, with a mean value of 0.703459 (2s = 0.000028), consistent with the LA‐MC‐ICP‐MS mean value. Reference values and uncertainties for major and trace elements and 87Sr/86Sr ratio are presented in this study. Consequently, the MGP‐1 plagioclase can be used as a reference material for in situ measurement of trace elements and 87Sr/86Sr ratios, contributing to research on the formation and evolution of micro‐zoned plagioclase and host rocks.

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.