Figure 3. Distribution of volcanic rocks of Triassic age in the Brisbane area.
(a) Shows the distribution of the Brisbane tuff and of some Late Triassic plutons.
Inset (b) shows the distribution of the undifferentiated rhyolitic and mafic lava flows on the north-eastern tip of Moreton Island.
Inset ( c) shows the distribution of rhyolitic lava flows on the north-eastern tip of North Stradbroke Island.
(All grid references are in AMG)