Table T4. Concentrations of quantified biomarker lipids and compound indices.

Core, section,
interval (cm)
C25-C33
n-alkanes
CPIalk27-31
ACL25-33
C20-C30
fatty acids
C20-C30
n-alcohols
C37 alkenones
Uk´37
Temperature
(°C)
Taraxerol
Loliolide
Dinosterol
Cholesterol
C30 diol
Biphytanediols
175-1076A-                            
4H-2, 75-77 64 6.0 29.5 29 59 90 0.79 22.5 6.0 0.7 18 5.4 34
ND
7H-2, 75-77 230 3.8 29.6 40 81 230 0.93 26.9 230 3.6 8.0 9.7 270
ND
15H-2, 75-77 1100 10.4 29.6 550 1100 1300 0.73 20.8 1400 25 550 25 740
ND
175-1077A-                            
9H-2, 75-77 280 7.0 29.7 330 720 350 0.86 24.6 120 0.4 96 130 260 43
13H-2, 75-77 300 4.2 29.6 960 780 230 0.89 25.7 380 0.6 160 67 220 69
175-1079A-                            
2H-4, 46-49 210 7.4 29.9 47 94 490 0.78 22.2 12 39 19 6.8 29
ND
13H-4, 46-49 150 6.0 30.4 150 310 370 0.85 24.4 99 7.5 170 180 190
ND
175-1082A-                            
6H-1, 105-108 90 8.4 31.0 39 78 960 0.58 16.4
ND
15 89 210 60 380
53X-3, 27-30 18 5.6 30.3 7.5 15 80 0.95 27.4
ND
ND 7.9 10 5.2
ND
175-1084A-                

         
12H-6, 140-143 210 3.1 30.4 170 350 1400 0.55 15.4
ND
63 450 1100 150 500
25X-3, 20-23 44
NA
NA
180 360 850 0.58 16.1
ND
56 320 2000 210 500
51X-3, 20-23 13
NA
NA
68 140 180 0.74 21.2
ND
8.5 86 150 53 150
175-1085A-                

         
11X-3, 20-23 12 6.9 30.4 8.6 17 300 0.68 19.3
ND
0.9 5.6 5.6 8.7 27
50X-3, 20-23 13 5.1 30.2 9.5 19 80 0.84 24.0
ND
ND 9.0 5.8 4.5 12

Notes: NA = not applicable because concentration was too low, ND = not detected. Lipid concentration is given in micrograms per gram of TOC.

CPI (carbon preference index) = 0.5 x (Xi + Xi+2 +..+ Xn) / (XI-1 + Xi+1 +..+ Xn-1) + 0.5 x (Xi + Xi+2 +..+ Xn) / (XI+1 + Xi+3+..+ Xn+1).

ACL (average chain length) = (i x Xi) / Xi.

Uk´37 (ketone unsaturation index) = C37:2 / (C37:2 + C37:3).

Temperature was calculated using the equation from Müller et al. (1998): Uk´37 = 0.033 T + 0.044.