Extended Data Fig. 3: Fiordland glacier fluctuations and their regional-to-hemispheric counterparts.
From: Synchronous bipolar retreat of mid-latitude ice masses during Heinrich Stadials
a, Ice-thickness chronology in the Rangitata Valley, central South Island, based on the dating of kame terraces (circles; letters refer to site locations)34. The Rangitata ice advances R1-R6 (grey bands)112 are also shown. b, Fiordland GI (grey), and the mean εNd values of the clay-silt fractions of the detrital sediment at TAN1106-28 (blue; ±2σ, blue shading). External reproducibility on discrete samples of ±0.08 ε (2σ). The arrows on the TAN1106-28 proxy records show the R1-R6 counterparts. Vertical dashed lines highlight Fiordland Otiran peak glaciation (FO), with their age uncertainties (horizontal lines, in c). c, Glacier chronologies from U-Th dating of cave speleothems above Lake Te Anau, Fiordland27 (grey squares), and from 10Be moraine dating (probability plots with their age uncertainties generated with Chronomodel 2.0 Bayesian software113,114,115; y-axis on arbitrary scales) from central Southern Alps of New Zealand (grey)21,116,117,118 and the Falklands119 (blue), where past glacier fluctuations resemble those in New Zealand21,119. All published 10Be exposure ages were homogenised using the CREp online calculator120 and the SH calibration sites121,122. Probability for moraine survival based on ref. 123. Marine Isotope Stages (MIS) are numbered.
