Extended Data Fig. 3: QGIS database for sample CM-5.
From: Decadal warming events extended into central North America during the last glacial period
(a) Base reference layer of sample CM-5, which is a cross-sectional photo of sample CM-5 down the central growth axis. U-Th ages are labelled (white pits with labelled ages) and a scale down the central growth axis is shown to show how depths of each U-Th age was found. (b) CLFM image of sample CM-5 geo-referenced on top of the base layer. (c) White/reflected-light optical image of the CM-5 SIMS sample surface. (d) SIMS δ18O points measured down the central growth axis of sample CM5. (e) Zoomed-in panel showing the labelled SIMS δ18O points for a section of sample CM-5, with each individual SIMS pit being 10-μm in diameter.
