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Table T36. n-Alkane, sterene, and sterane data for drill cuttings, Hole C0020A.

Cuttings
sample 		Depth MSF (m) n-alkanes
(µ/g sed) 		CPI C29 Δ4 and Δ5 sterenes
(µg/g sed) 		C29 sterane
(µg/g sed) 		C29 sterane/sterene Δ4 and Δ5 sterenes (%) 5α(H),14α(H),17α(H)
22(R) steranes (%)
Top Bottom C27 C28 C29 C27 C28 C29
337-C0020A-
25-SMW 646.5 656.5 0.5 7 0.001 0.0002 0.19 34 31 35 25 29 46
30-SMW 696.5 706.5 0.1 10 0.001 0.0005 0.44 32 26 42 24 31 45
35-SMW 746.5 756.5 1.3 7 0.002 0.002 0.90 38 17 45 27 27 46
40-SMW 796.5 806.5 0.9 4 0.005 0.001 0.18 38 15 47 23 26 51
45-SMW 846.5 856.5 0.4 3 0.002 0.001 0.46 40 15 45 19 28 54
56-SMW 896.5 906.5 0.4 4 0.004 0.002 0.45 35 16 48 19 25 56
61-SMW 946.5 956.5 0.1 5 0.004 0.001 0.21 41 13 46 26 25 49
66-SMW 996.5 1006.5 0.1 3 0.002 0.001 0.43 36 10 54 22 22 56
73-SMW 1046.5 1056.5 0.02 4 0.0001 5E–5 0.41 46 13 41 30 24 46
81-SMW 1096.5 1106.5 0.3 8 0.004 0.0005 0.12 22 10 68 19 18 62
98-SMW 1256.5 1266.5 0.9 7 0.009 0.001 0.15 14 13 74 16 22 62

CPI = carbon preference index. CPI = 2 × ([C25 + C27 + C29 + C31+ C33]/[C24 + C26 + C28 + C30 +C32]) + ([C25 + C27 + C29 + C31+ C33]/[C26 + C28 + C30 + C32 +C34]).

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