Abstract
We report here a 30 W CO 2 laser heating protocol for analyzing oxygen isotope composition ( δ 18O in ‰ vs. V-SMOW) of quartz and amorphous silica grains lower than 50 and 2 μm with a good external precision (1 σ < 0.15‰). This technique is used to investigate δ 18O composition of macro-, micro- and crypto-crystalline quartz cements of quartzite levels occurring in a sand sequence from the South of France (Apt Series), after a physical separation of the quartz cements. δ 18O data obtained from this technique are compared with δ 18O data obtained from in situ ion microprobe analyses. This study also presents promising results on δ 18O analysis of phytoliths obtained with the laser heating protocol (1 σ < 0.1‰).
Sign-in/Register to access full text options 
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 callDisclaimer: 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.
