Most of the world’s greatest mines started as a surface outcrop before turning into a big hole in the ground. Australia’s Deep Exploration Technologies Cooperative Research Centre, backed by miners like BHP Billiton, Barrick and Newcrest, is developing new techniques to find deposits visible only deep underground. Says Neil Williams, retired chief of government research agency Geoscience Australia: “There will be big deposits out under the Great Plains.”
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(This story appears in the 28 November, 2014 issue of Forbes India. To visit our Archives, click here.)