@Article{Kolodny:2003, author = {Y. Kolodny and M. Bar-Matthews and A. Ayalon and K.D. McKeegan}, title={A high spatial resolution $\delta$$^{18}${O} profile of a speleothem using an ion-microprobe}, journal={Chem. Geol.}, year={2003}, volume={197}, number={}, month={Jun}, pages={21--28}, note={}, annote={}, keywords={Ion-probe; Speleothems; Oxygen isotopes; Soreq Cave}, url={http://sims.ess.ucla.edu/PDF/Kolodny_et_al_ChemGeol_2003.pdf}, doi={10.1016/S0009-2541(02)00353-4}, abstract={The oxygen isotopic composition of a stalactite from the Soreq Cave, Israel has been investigated by in situ high spatial resolution ion microprobe analysis. The $\delta$$^{18}$O record obtained on portions of the stalactite, which were deposited during the time interval of 18-14.3, 10.8-8.5 and 1.5-0.2 ka, has a temporal resolution ranging from not, vert, similar1 to 25 years (depending on the deposition rate during the period investigated). Comparison to results obtained by micro-drilling and phosphoric acid reaction gas-phase mass spectrometry indicates that the ion microprobe analyses are precise and accurate at the 0.4-0.5$\permil$ level. The high resolution of the ion microprobe profile enables the detection of short duration excursions toward low $\delta$$^{18}$O values during deglaciation (from 18 to 14.3 ka), providing further evidence indicating the instability of the glacial climate.} }