Fig. 2: Box and whisker plot comparing within-cave variability in dripwater and speleothem mean δ18O values.
From: Ubiquitous karst hydrological control on speleothem oxygen isotope variability in a global study
The analysis demonstrates that within-cave variability in speleothem mean δ18O values are comparable to the within-cave variability of dripwater mean δ18O values, inferring a flowpath control. Category 1 (purple circles) are the range of dripwater mean δ18O values for each cave and category 2 (green circles) are speleothem Δδ18Omeans for each pair of coeval records. Speleothem Δδ18Omeans are divided into Holocene (category 3, green crosses) and Pleistocene epochs (category 4; green diamonds). Orange squares indicate the mean value, boxes indicate the inter-quartile range and whiskers the 5th and 95th percentiles. Data from the global meta-analysis of dripwater and speleothem datasets.
