Fig. 1: Reconstructed cave temperatures from stalagmite SC02 by means of fluid inclusion microthermometry.
From: Evolution of tropical land temperature across the last glacial termination
Grey circles are measured cave temperatures derived from ~30 – 40 fluid inclusion analyses at each sample position, while black circles represent the corresponding sea level corrected temperatures. Each temperature point integrates over a time period between 50 and 250 years, depending on the width of the analysed layers and the stalagmite growth rate. Error bars are two standard errors of the mean (2 SEM). U/Th ages (with 95% confidence intervals) from ref. 28 are shown below. The magnitude of glacial-interglacial temperature change (ΔT) is 4.4 ± 0.3 °C (2 SEM) in the cave, and 3.6 ± 0.3 °C (2 SEM) when corrected for sea level induced changes in cave altitude. ΔT is calculated as the difference between averaged LGM (>19 ka) and Holocene (<10 ka; after main sea level rise8) temperatures, indicated by dashed boxes. Present-day cave temperature is 24.0 °C (black arrow). Grey vertical bars indicate pronounced NH cooling episodes. LGM Last Glacial Maximum, HS1 Heinrich stadial 1, ACR Antarctic Cold Reversal, YD Younger Dryas.
