Figure 12—Part of seismic line JA90-23, together with line-drawing interpretation, showing stacked reefs interpreted as warm-water (tropical) features (the rim phase) that formed the extensive western Great Australian Bight Little Barrier Reef (Feary and James, 1995) within sequence 6B (other sequences lightly shaded). The underlying ramp phase mounds are interpreted as cooler water (temperate or cool subtropical) buildups that grew in a broad, gently sloping shelf environment. Note the debris apron (sequence 5) abutting the escarpment. Modified from Feary and James (1995).