By Daina Beth Solomon and Fabian Cambero SANTIAGO (Reuters) -The proposed Anglo American-Teck merger has revived long-standing ambitions to share infrastructure at two major mines in northern Chile, but analysts say the plan could face hurdles to gain buy-in from Swiss miner and trader Glencore. Glencore is an equal partner with London-listed Anglo at Collahuasi, one of the world's largest copper deposits that sits about 10 kilometers (6.21 miles) from Canadian miner Teck's flagship Quebrada Blanca mine. ...