Earth recycles ocean floor into diamonds

Is the sparkler on your finger recycled seabed? Photo: Flickr CC/Stephen Durham

Most diamonds are made of cooked seabed.

The diamond on your finger is most likely made of recycled seabed cooked deep in the Earth.

Traces of salt trapped in many diamonds show the stones are formed from ancient seabeds that became buried deep beneath the Earth’s crust, according to new research led by Macquarie University geoscientists.

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Ensuring Australia’s mining future

Australian Academy of Science media release

AAS 1/11

Sixty of Australia’s big-thinking young geoscientists have identified how to ensure this country continues to be a powerhouse of mining for at least the next century.

The report of a Think Tank on the future of resource discovery and utilisation held at the Australian Academy of Science late last year was launched by the Minister for Resources and Energy, The Hon Martin Ferguson, today at the Shine Dome in Gordon Street, Canberra at 3 pm. Read More about Ensuring Australia’s mining future

Air, fire, earth and water – understanding our planet in all its moods

In 2011 Australia will hold one of the world’s largest meetings of earth scientists. They will explore all the physical aspects of our planet, from deep in the Earth’s core to our place in space.

Given recent natural disasters—such as the Pakistan floods, Black Saturday bushfires, Hurricane Katrina, the 2004 Boxing Day Tsunami, 2010 Chile earthquake, Iceland’s Eyjafjallajökull volcano—the Earth seems ever more restless and destructive, and the impact on human life and infrastructure is increasingly heavy.

So it is important to understand how the Earth works—which means the 25th General Assembly of the International Union of Geophysics and Geodesy in Melbourne from 28 June to 7 July 2011 will be a focus of attention, not only for the 3,000 delegates expected to attend, but for many others besides. Read More about Air, fire, earth and water – understanding our planet in all its moods

Are we all mined out?

Released on behalf of the Australian Academy of Science

Most of the easily-found, economically exploitable mineral deposits in Australia have already been discovered, and are steadily being mined out. We need new, large, rich ore bodies to replace them.

How we go about finding and developing them is at the core of an Australian Academy of Science Think Tank to be held in Canberra on Thursday 19 and Friday 20 August. The media are invited to the first day, and the speakers are available for interview. Read More about Are we all mined out?

Will eco-warrior billionaires hack the earth?

“Our failure to act on climate change could encourage an underground movement to take action and fix climate change through geo-engineering. It’s a real threat according to leading academics. And the ethics of geo-engineering were explored at a Victorian government backed conference in California earlier this year,” says science commentator Tim Thwaites.

Shock? Horror? Why should we be surprised? As climate provocateur, Bjorn Lomborg pointed out to Robyn Williams recently on the ABC’s Science Show, many geo-engineering possibilities are inexpensive enough to be with the reach of a billionaires like Bill Gates and Richard Branson —and Governments seem hamstrung about coming to agreement on any other action. This makes the ABC online drama project Bluebird timely, as it explores these very issues. Read More about Will eco-warrior billionaires hack the earth?

ABC launches Bluebird – now I can change the world…

11 am, 27 April 2010

From Australians stranded in Europe to fresh vegetable growers in Africa, people dependent on the world’s airlines have done it hard in the past two weeks.

If the eruption of one volcano in Iceland can disrupt us so badly, what could the Bluebird project do? You are about to find out.

From today, the ABC invites you to enter the world of the experimental science of geoengineering—the deliberate manipulation of the Earth’s atmosphere to counteract climate change. Bluebird AR, an interactive alternative reality story about geoengineering, will play out on websites, in the social media, on ABC programs, and all around you. Read More about ABC launches Bluebird – now I can change the world…

2009 Prime Minister’s Prizes for Science

How astronomy freed the computer from its chains
Testing new technologies in the computer not the real world
Breaking the link between fat and diabetes
…news, citations, photos, speechs and videos from the 2009 Prizes