It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
Australian Institute of Marine Science (AIMS) researchers have opened a window into the past by exposing ancient mangrove forests entombed beneath the Great Barrier Reef.
AIMS biologist Dr Dan Alongi said the expedition was surveying the impact of nutrients on coastal inshore areas when scientists unearthed mangrove forests in old river channels they believe may snake for 30 kilometres to the edge of the continental shelf.
Scientists have long theorised that sea level rose very gradually over several thousand years, but these remnant mangrove forests tell another story.
While it was previously known that relic river beds exist beneath the Great Barrier Reef, formed 9000 years ago when the sea level was lower than the continental shelf, their significance was never studied.
"When we took the first samples it was difficult to believe… we stood amazed wondering what exactly we were dealing with. We thought it was cyclone debris, but it was far too deep to be a modern event," said Dr Alongi.
AIMS researchers cored 1-2 metres of sediment and found remnant mangrove 70 centimetres below the surface of the present seafloor.
These core samples of mud are an evolutionary time frame. The evidence will help to establish the state of the reef and nutrient sediment information as it existed prior to human activity.
Dr Alongi said the mangroves were incredibly well preserved; a fact most likely attributed to the antibiotic properties in the concentrated tannins. "The cores still have the characteristic smell of tannins, that’s why we thought they were young.
"Within the cores were intact root systems and parts of trees including twigs and branches that radiocarbon dating put between 8550 and 8740 years of age.
"There’s such an abrupt change in core composition from mud-like substance to intact mangrove branches…from the modern to the ancient, that it suggests a large climate change happened," said Dr Alongi.
Migration was achieved during the closing stages of the Pleistocene, when sea levels were much lower than they are today. Repeated episodes of extended glaciation during the Pleistocene epoch, resulted in decreases of sea levels by more than 100 metres in Australasia. The continental coastline extended much further out into the Timor Sea, and Australia and New Guinea formed a single landmass (known as Sahul), connected by an extensive land bridge across the Arafura Sea, Gulf of Carpentaria and Torres Strait. Nevertheless, the sea still presented a major obstacle so it is theorised that these ancestral people reached Australia by island hopping. Two routes have been proposed. One follows an island chain between Sulawesi and New Guinea and the other reaches North Western Australia via Timor.
The sharing of animal and plant species between Australia-New Guinea and nearby Indonesian islands is another consequence of the early land bridges, which closed when sea levels rose with the end of the last glacial period. The sea level stabilised to near its present levels about 6000 years ago, flooding the land bridge between Australia and New Guinea.
Originally posted by SevenThunders
That's kind of close to the Biblical flood time frame. Thus this information will be suppressed as quickly as possible, just as most of the other information that supports the Biblical account.
Originally posted by TiM3LoRd
reply to post by Soylent Green Is People
the secrecy i was referring to has nothing to do with the discovery made about the mangrove Forrest. it was a reply to another users post regarding the possibility that it MIGHT be hushed up. i am neither amazed nor surprised at the discovery. i am a firm believer that what we know and what we THINK we know are 2 completely different things.