Fig. 3: Partial gas chromatograms showing compounds identified in ponds Skua, Duet, and Brack.
From: Biosignatures of diverse eukaryotic life from a Snowball Earth analogue environment in Antarctica
Sterols identified are numbered; their corresponding peaks are described in Table 2. Peaks labelled A represent carboxylic acids, peaks labelled S represent siloxanes, and the peak labelled U represents an unidentified non-sterol, non-acid compound.
