Fig. 2: Modern speleothem and drip water records. | Communications Earth & Environment

Fig. 2: Modern speleothem and drip water records.

From: Caves demonstrate decrease in rainfall recharge of southwest Australian groundwater is unprecedented for the last 800 years

Fig. 2: Modern speleothem and drip water records.The alternative text for this image may have been generated using AI.

Individual speleothem (stalagmite) δ18O records from Crystal Cave (CRY-S1), Golgotha Cave (GL-S1, GL-S2, GL-S3 and GL-S4), Labyrinth Cave (LAB-S1), and Moondyne Cave (MND-S1), as well as drip water δ18O expressed as calcite-equivalent values and farmed calcite δ18O from the Golgotha speleothem locations. Farmed calcite δ18O error bars represent ± 1 standard deviation of measurements from each site and the year error bars represent the sample collection time. All data were normalised by subtracting 1900–1968 mean speleothem δ18O values. Chronologies for all speleothems were published previously (see 'Methods').

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