Fig 1.
Visible are the two sides of the central slab. Image on left shows the location of the samples milled for U-Th dating together with the results. Image on right shows holes from conventional drilling for samples for stable isotope analysis, together with tracks from sub-millimeter micromilling (highlighted by green lines). Red lines in both images indicate the position of inferred depositional hiatuses.
Fig 2.
The location of Mavri Trypa Cave in relation to the Mycenaean Palace of Nestor at Pylos and other paleoclimate records mentioned in the text. Map made with Natural Earth.
Fig 3.
Age-depth model for S1 with uncertainties.
Upper: Age uncertainties for each corrected U-Th age as percentages. Note logarithmic scale. Lower: Age-depth model for stalagmite S1 (green line) with corresponding 95% confidence limits (red lines). Black circles indicate individual U-Th ages, error bars show 2σ uncertainties. #1 to #3 denotes growth periods separated by hiatuses.
Fig 4.
Stable oxygen isotopes as a proxy for precipitation showing wetter and drier periods through time.
A: Full sequence of stable oxygen isotopes from S1 plotted against time. Individual U-Th ages presented as black circles, error bars show 2σ uncertainties. B: Stable oxygen isotope results covering the Late Bronze Age (LBA) and Early Iron Age (EIA). The sub-periods of the LBA (Late Helladic (LH) I to LH IIIC) and the Protogeometric (PG) are shown together with the suggested period when the Palace of Nestor at Pylos was destroyed based on information from [27,29,31].