geoscience

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. [continue reading…]

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. [continue reading…]

Prime Minister’s Science Prizes, CERN director to visit Australia, and more

Tomorrow the Prime Minister will present her Prizes for Science. The embargo is 5 pm on Wednesday 17 November 2010.

The winners will be at Parliament House from 11 am tomorrow morning and available in the Press Gallery from 1 pm.

Other science news: a L’Oréal award and $100,000 for an Aussie scientist discovering bacteria everywhere; Chinese science leaders in Australia marking 30 years of collaboration; CERN director here soon for physics congress; the end of the world; and…

‘When you’re up to your arse in alligators, it’s hard to remember that your original intention was to drain the swamp.’ This quote sets the scene for a black comedy on biodiversity staged in the skeleton gallery of the Australian Museum tonight and Thursday. [continue reading…]

Prime Minister's Science Prizes, CERN director to visit Australia, and more

Tomorrow the Prime Minister will present her Prizes for Science. The embargo is 5 pm on Wednesday 17 November 2010.

The winners will be at Parliament House from 11 am tomorrow morning and available in the Press Gallery from 1 pm.

Other science news: a L’Oréal award and $100,000 for an Aussie scientist discovering bacteria everywhere; Chinese science leaders in Australia marking 30 years of collaboration; CERN director here soon for physics congress; the end of the world; and…

‘When you’re up to your arse in alligators, it’s hard to remember that your original intention was to drain the swamp.’ This quote sets the scene for a black comedy on biodiversity staged in the skeleton gallery of the Australian Museum tonight and Thursday. [continue reading…]

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. [continue reading…]

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. [continue reading…]