1. The Argillaceous rocks (lutites) include shales, argillites, siltstones, and mudstones

2. The formation has pebbly sandstones, arkosic sandstones and siltstones, and intercalated thin Arenaceous …

3. The lower (younger?) thrust emplaces Precambrian basalts and tuffaceous siltstones (Coldbrook Group) over alluvial sediments of the Boss Point and Tynemouth Creek formations (Westphalian A–B).

4. Earlier exploration consisted of prospecting, geochemical and induced potential surveys and trenching, and unearthed outcrop and boulder occurrences of ankerite veins in altered Horton Group siltstones.