Extended Data Fig. 2: Images of sample PRR50489.
From: Ice retreat in Wilkes Basin of East Antarctica during a warm interglacial
a, b, Sample shown in visible light (with location of dated horizons corresponding to data reported in Extended Data Table 1) (a) and the SEM/EDS compositional map showing Ca and Si (b). The sample exhibits an angular unconformity, indicating that the sample physically moved beneath the ice before accumulation began again. Clct, calcite.
