Fig. 8From: Biomarker records and mineral compositions of the Messinian halite and K–Mg salts from SicilyTotal ion chromatogram, m/z = 99, m/z = 191, and m/z = 217 mass chromatograms of (a) the free N-1 and (b) desulfurized N-1 fraction of the K–Mg salt Fallen rock B. Mass chromatograms of m/z = 217 were obtained by selected ion monitoring (SIM) mode. N-alkane peaks are labeled with black circles and peaks identified are labeled with numbers and listed in Table 2.Back to article page