Silver Wheaton (T.SLW) to extend deadlines in Pascua Lama silver deal with Barrick Gold (T.ABX) By: Stockhouse Newswire January 05, 2015 at 10:36 AM EST Silver Wheaton (T.SLW) to extend deadlines in Pascua Lama silver deal with Barrick Gold (T.ABX) Read More >> Related Stocks: Barrick Gold Corp Barrick Gold Corporation Silver Wheaton Corp.