But scientists are still debating at what point the Earth's atmosphere contained enough oxygen (produced by cyanobacteria) to allow the formation of big iron deposits. (sciencedaily.com)
And, at a point very, very soon, the billionaire who took less than a decade to build the world's fourth biggest iron ore producer will start eye - balling chief executives of some of Australia's biggest gas users and recommending they put their future supply contracts where their mouths have been. (afr.com)
(Iron man vs bigger iron man, Mr. Hyde vs bigger Hyde and on and on.) (mrqe.com)