Geology
A porphyry of Green-grey Dacitic intrusive containing large white Feldspar crystals is found in the north east corner. Green grey dacitic tuff from the Hawkins Volcanics occur on the south east side of Melba. Green grey dacite and quartz andesite occur in the north west to the south east. This is intruded by a band of Glebe Farm Adamellite. Deakin Volcanics purple rhyodacite with a patch of purple and green tuff are in the south west. The Deakin Fault runs north west through Melba and is marked by quartz.
Read more about this topic: Melba, Australian Capital Territory