Petrology and geochemistry of annually laminated stalagmites from an Alpine cave (Obir, Austria): seasonal cave physiology - Tufas and Speleothems: Unravelling the Microbial and Physical Controls - page 301

Fig. 5. Depth trends in stalagmite Obi84 (a - c) and Obi12 (d). (a) stable isotope data derived by micromilling at 0.1 mm
intervals; thick lines are 5-point moving averages. (b) Variations in lamina thickness; calendar years are shown at
20-year intervals. (c, d) Trends in composition with depth from ICP analyses of samples drilled at approximately
1.5 mm intervals. Data for 10 elements is summarized in Table 1. S increases during the 20th century whereas the base
metals tend to decrease, especially in Obi84.