The Toronto-based company said the bid of 48 cents per share in cash represents a 37% premium at the close of Petaquilla's trading on the Toronto Stock Exchange.
Instead of the lauded $6 billion in mining invested forecasted for 2013 earlier this year, SNMPE says the country’s sector will attract about $4 billion.
Vale has teamed up with the University of São Paulo to identify bacteria and fungi capable of eating copper in a move which could generate an additional $1.4 billion in gross revenue for the Brazilian mining giant.
Scientific American provides a detailed, hypothetical response to the question which has no doubt crossed the mind of anyone involved with the mining sector - how long before the Earth's bounty of resources runs out?