Iron-Ore extraction rate for the world and a Verhulst function fit to the data.
The red curve is for total extraction of 425x109 tonnes; the blue curve is for twice that amount.
L. David Roper
http://arts.bev.net/RoperLDavid/
21 December 2007
There has been a large increase in iron-ore extraction since the year 2000, largely due to the increase in China. The graph below shows the iron-ore extraction data for the world and a Verhulst function fit to the data in order to extrapolate into the future for an eventual extraction amount of 1x1012 tonnes, which is well above the estimated resources.
Iron-Ore extraction rate for the world and a Verhulst function fit to the data.
The red curve is for total extraction of 425x109 tonnes; the blue curve is for twice that amount.