Figure 1:
[PDF, 648KB]: | Location of Release Areas S09-1 to S09-6, Bight Basin. |
Figure 2:
[PDF, 416KB]: | Structural elements of the eastern Bight Basin showing 2009 Release Areas and wells. Locations of seismic lines used in Figures are shown. |
Figure 3:
[PDF, 36KB]: | Bight Basin stratigraphic correlation chart showing basin phases and predicted source rock intervals (modified from Blevin et al, 2000 and Totterdell et al, 2000). The sea-level curve (Haq et al, 1988) is modified to the time scale of Gradstein et al (2004). |
Figure 4:
[PDF, 3,063KB]: | Seismic line (DWGAB-10) across the Ceduna Sub-basin. Supersequences are labelled. Refer to Figure 2 [PDF, 416KB]: for location of seismic line. |
Figure 5:
[PDF, 2,127KB]: | Portion of seismic line (DWGAB-04) across the Ceduna Sub-basin. Supersequences are labelled. Refer to Figure 2 [PDF, 416KB]: for location of seismic line. |
Figure 6:
[PDF, 1,735KB]: | Composite seismic line (GA199-05 - DWGAB-06 - HRGAB-119) across the Ceduna Sub-basin. Supersequences are labelled. Refer to Figure 2 [PDF, 416KB]: for location of composite seismic line. |
Figure 7:
[PDF, 870KB]: | Map of the 2009 Release Areas showing seismic lines, and play areas and leads mapped at a Santonian horizon by Woodside Energy Ltd (after Tapley et al, 2005). |
Figure 8:
[PDF, 35KB]: | Source rock character (TOC vs HI) based on samples from the Bight Basin and Polda Basin (Sea Lion Supersequence only). Data with TOC values less than 0.5% are not included. |
Figure 9:
[PDF, 35KB]: | Tmax vs HI based on samples from the Bight Basin and Polda Basin (Sea Lion Supersequence only). |
Figure 10:
[PDF, 106KB]: | Modelled present-day maturity zones (% Ro) for two 2D maturity profiles through Potoroo 1 and Gnarlyknots 1A. Supersequences are labelled. Refer to Figure 2 [PDF, 416KB]: for location of profiles (after Totterdell et al, 2008). |
Figure 11:
[PDF, 415KB]: | Location of dredge sample (25DR17) along canyon edge in the northeastern Ceduna Sub-basin and example of recovered Cenomanian-Turonian organic-rich rock (after Totterdell et al, 2008). Refer to Figure 2 [PDF, 416KB]: for location of dredge sample. |
Figure 12:
[PDF, 301KB]: | Present-day maturity map for Cenomanian-Turonian marine shale at the base of the Tiger Supersequence. |
Figure 13:
[PDF, 24KB]: | Petroleum systems diagram for the Ceduna Sub-basin. |
Figure 14:
[PDF, 76KB]: | Modelled present-day transformation ratios (%) of three Cretaceous potential source rock units along two profiles through Potoroo 1 and Gnarlyknots 1A. Supersequences are labelled. Refer to Figure 2 [PDF, 416KB]: for location of profiles (after Totterdell et al, 2008). |
| Figure 15:[PDF, 3,466KB]: | Seismic line (DWGAB-10) across Release Areas S09-2 and 3 (portion of seismic line shown in Figure 4 [PDF, 3,063KB]; refer to Figure 2 [PDF, 416KB]:for location of seismic line) showing typical structural plays such as lowside and highside fault traps at multiple stratigraphic levels (arrowed). Key supersequence boundaries are labelled. |
Figure 16:
[PDF, 2,023KB]: | Seismic lines from Release Area S09-1 showing multiple structural plays at mid-Tiger Supersequence level (Santonian) on a) a SW-NE oriented dip line, and b) a NW-SE oriented strike line (refer to Figure 2 [PDF, 416KB]: for location of seismic lines). The dotted line represents the intersection of the two lines. The strike line also shows a possible onlap play within a basal Hammerhead Supersequence channel. Key supersequence boundaries are labelled. |
Figure 17:
[PDF, 2,496KB]: | Portion of a seismic line in Release Area S09-4 showing the Springboard Prospect (King and Mee, 2004) and other fault-dependent plays in the Hammerhead and Tiger supersequences, including combination structural/stratigraphic plays at the base of the Hammerhead Supersequence. Key supersequence boundaries are labelled (refer to Figure 2 [PDF, 416KB]: for location of seismic line). |
Figure 18:
[PDF, 1,797KB]: | Seismic line from Release Area S09-5 showing example of bright amplitudes (Trapline prospect; King and Mee, 2004) within Campanian sandstones of the mid-Hammerhead Supersequence (refer to Figure 2 [PDF, 416KB]: for location of seismic line). |