Table 1.
ANU/MIT hopane and sterane concentrations, in picograms per gram of rock
| Sample | Interior ΣC30–34 hopane concentration | Interior ΣC26–29 sterane concentration | Exterior ΣC30–34 hopane concentration | Exterior ΣC26–29 sterane concentration |
| Range for blanks* | nd to 37.9 | nd to 32.9 | nd to 37.9 | nd to 32.9 |
| AIDP-2 441.00 m (negative control) | nd | nd | 31.4 | nd |
| AIDP-2 146.20 m | nd | nd | 10.7 | 11.8 |
| AIDP-2 170.40 m | nd | nd | nd | nd |
| AIDP-2 197.20 m | nd | nd | 50.4 | 49.4 |
| AIDP-2 291.28 m | nd | nd | 7.3 | 16.5 |
| AIDP-2 301.40 m | 5.2 | nd | 8.0 | nd |
| AIDP-2 325.48 m | nd | nd | nd | nd |
| AIDP-2 327.42 m | nd | nd | 38.5 | 24.3 |
| AIDP-3 98.36 m | nd | nd | nd | nd |
| AIDP-3 130.30 m | nd | nd | nd | nd |
| RHDH2A interior† | 3.5 | 21.1 | ||
| RHDH2A sawed surface 1† | 250 | 1,092 | ||
| RHDH2A sawed surface 2† | 259 | 509 | ||
| RHDH2A rounded surface† | 390 | 468 |
Herein, nd denotes “not detected.”
*
Note that the same blank concentration ranges measured for hopanes and steranes are provided in the interior and exterior columns.
†
The RHDH2A 130.2−130.4 m sample surfaces were cut according to Fig. 1.