Geology of Island Block (1st of 2)

Geology of Island Block (1st of 2)

This is an example of a detailed geological map of Island Block at Garvey Creek, near Reefton. The colours indicate different rock types. Brunner coal measures, containing thick coal seams, are pink. Individual coal seams are shown in black. These have been traced out in steep, heavily bush-covered country by coal prospectors.