The last time Western Australia was engaged in a dispute with Canberra of this magnitude, it threatened to secede during a financial crisis sparked by the 1930s Depression.

The current friction is linked to China’s slowdown — a sign of how closely Australia’s fortunes are tied to Beijing’s appetite for its commodity exports. “It’s not secession but it is tension and disengagement,” Colin Barnett, Western Australia’s premier, said this week when Canberra and other states rejected a request to help plug a widening hole in the state budget caused by plunging iron ore prices.

Western Australia is a mining state that enjoyed a decade-long boom selling iron ore — a key ingredient in steel — to China. Known by some as “China’s quarry”, the state hosts BHP Billiton, Rio Tinto and Fortescue Metals Group, which have spent billions of dollars building mines, railways and ports to almost double Australian iron ore production over the past five years to 717m tonnes in 2013-14.