Fig. 5From: Preserved organic matter in a fossil Ocean Continent Transition in the Alps: the example of Totalp, SE SwitzerlandRepresentative mass chromatograms of the HCs of a typical sample of limestone (sample 10) and a siliceous rock from the sulphide rich outcrop of Totalp (sample 60). a n-alkanes (m/z 85) of sample 10 (limestone) b sterane distribution (m/z 217, 218) of sample 60 c PAH distribution (m/z 178, 192, 202, 228) of sample 60. For abbreviations see appendixBack to article page