Figure 2: Isotope data compilation for Antarctic sulfates.
From: Lost cold Antarctic deserts inferred from unusual sulfate formation and isotope signatures
(a) δ18O-Δ17O diagram of data collection of sulfates from Antarctica ice cores, snow pit, soil, lake45,46 (also this study and National Snow and Ice Data Center, http://nsidc.org/). Results show three end members of Antarctic sulfates. (b) δ18O-δ34S diagram for sulfates from Antarctica ice cores, snow pit, soil, lakes and evaporites21,23,27 (also this study and National Snow and Ice Data Center). Results show similar 34S enrichment for LCIT mirabilite and Ace Lake sulfates in contrast with all other sulfates. Solid symbols are for data from previous studies, hollow symbols are for this study.
