Researchers could soon understand how the Earth formed, by using a scientific model developed

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from the mathematics of steelmaking.

According to lead researcher Prof Geoff Brooks of the University of Swinburne, "There are aspects of the science behind steelmaking that are very similar to that of planet formation.

"In steelmaking furnaces you will find molten metal, with a layer of crust on top. Similarly the centre of the Earth is molten metal, also with an outer crust."

The steel industry has developed models that show how extremely high temperatures can determine the grade of steel that is produced. The researchers are taking this know-how and applying it to the concept of planet formation.

"For example, if we look at an object that is entirely iron we are able to tell what temperature it has experienced. Working backwards, this then tells us what process it has gone through," Prof Brooks said.

Added co-researcher Sarah Maddison: "The same principles can help them understand the earliest stages of planet formation.

"Meteorites represent some of the oldest material in the Solar System. Using this method we are able to pick up a meteorite and determine the physical conditions, like the temperature and density of protoplanetary disks, from which compounds in that rock formed."

The team, which has already developed a scientific model that can be applied to the first stages of planet formation, are now working to refine it so that it can take into account complex behaviours.