FIVE drowned “Apostles” have been found underneath the water close to Victoria’s world-famous 12 Apostles vacationer attraction.
The discover has amazed geomorphologists as a result of it’s the primary time such submerged limestone stacks have been seen anyplace on the earth.
The 5 columns, round 6km offshore from the Apostles, have a median top of virtually 5m in contrast with the seen stacks which common 45m.
Divers have already examined the highest of the drowned stacks — that are 50m beneath sea stage — and picked up rocks for evaluation.
Specialists subsequent hope to discover the stacks with underwater cameras.
Melbourne College geomorphologist David Kennedy says the columns have been doubtless preserved as a result of the ocean rose so shortly after the final ice age.
“It most likely ran straight throughout the highest of this stuff with out managing to erode them away and knock them over,” Affiliate Professor Kennedy informed AAP.
The stacks have been additionally barely protected by an outdated sea cliff on the identical water depth.
Stacks solely happen the place rock is gentle sufficient to erode from a cliff, however on the identical time exhausting sufficient to assist a pillar.
Just like the so-called 12 Apostles — which really now quantity eight — the newly found underwater stacks have been as soon as half of a bigger limestone sea cliff relationship again 60,000 years.
The invention was made by Assoc Prof Kennedy, PhD scholar Rhiannon Bezore and Deakin College’s Dr Daniel Ierodiaconou throughout sonar mapping of the reef, which helps business fisheries.
The findings have been printed within the US-based Journal of Coastal Analysis.