By Sara Sjolin, MarketWatch

LONDON (MarketWatch) -- European stock markets opened stronger on Wednesday, with banks and resource firms in the lead, after Chinese economic growth data exceeded expectations, suggesting the rate of slowdown in its GDP is bottoming out.

The Stoxx Europe 600 index gained 0.6% to 340.33, recovering from a 0.4% loss on Tuesday.

Shares of Rio Tinto PLC (RIO) added 1.7% after the miner said it produced record volumes iron ore in its fiscal first half.

Other resource firms were also on the rise, after China recorded second-quarter growth of 7.5%, bringing economic expansion rate in line with the government's target of 2014 growth at "about 7.5%."

Shares of French oil giant Total SA (TOT) gained 1.3%, and miner Anglo American PLC picked up 0.7%.

Among country-specific indexes, France's CAC 40 index advanced 0.7% to 4,335.02 and Germany's DAX 30 index put on 0.5% to 9,767.05.

U.K.'s FTSE 100 index traded 0.5% higher at 6,746.98 ahead of a raft of labor-market data due at 9:30 a.m. in London, or 4:30 a.m. Eastern Time.

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