The areas of
volcanism in Eastern Australia surround the great artesian basin."Artesian"
water is underground water confined and pressurised within a porous and
permeable unit, an aquifer. The aquifers of the Great Artesian Basin consist
of permeable sandstones.
The Great Artesian Basin adjoins
a wide north-south zone of volcanism in Australia, extending from Cape
York to Tasmania. It is little recognised that this belt of volcanism extending
over the entire length of eastern Australia is one of the world's most
extensive volcanic zones.
Copyright John Seach