Munmorah Conglomerate | |
---|---|
Stratigraphic range: | |
![]() | |
Type | Geological formation |
Unit of | Narrabeen Group |
Overlies | Newcastle Coal Measures |
Thickness | up to 140 metres (460 ft) |
Lithology | |
Primary | Medium to coarse-grained sandstone and conglomerate |
Other | Minor amounts of siltstone and claystone |
Location | |
Region | Sydney Basin |
Country | Australia |
Munmorah Conglomerate is a geologic formation in the Sydney Basin in eastern Australia. This stratum is up to 140 metres thick. Formed in the early- Triassic, it is part of the Narrabeen Group of sedimentary rocks. This formation includes medium to coarse-grained sandstone and conglomerate. With minor amounts of siltstone and claystone. Below the Munmorah Conglomerates are Newcastle Coal Measures, originating from the Permian. [1] [2]