Work underway to uncover secrets of Great Barrier Reef area when it was dry land
Researchers and Indigenous rangers are conducting a scientific expedition to map the ancient, dry-land history of the Great Barrier Reef. By analyzing sediment samples from the seabed, the team aims to reconstruct the landscape as it existed 65,000 years ago.
Why it matters
Understanding the geological history of the reef provides critical data for modern conservation efforts and climate change adaptation.
The team examines sea floor biota onboard. ( Supplied: Helen Bostock )
Researchers and Indigenous rangers are trying to find out what type of landmass the Great Barrier Reef was before it was underwater.
Because of the way sediment collects on the sea floor, they are using samples as "time capsules" to create a map of the area's past.
Data and samples collected during the trip on a CSIRO boat will also be used for current and future mapping to help with the reef's future health.
Link copied Share Share article Beneath the sea off the Central Queensland coast is a tapestry of colourful coral, marine life and pristine ecosystems, but there are also ancient secrets.
About 65,000 years ago, when sea levels were 80 metres below present-day levels, the Southern Great Barrier Reef area was a landmass that could have been grasslands, dense rainforests or mangrove swamps.
Get smarter about the news
Sign up free for a feed built around what you actually care about, Dive Deeper research on any story, and the full text of every article.
Create free accountAlready have an account? Sign in