FTSE 100 edged up as gains in miners, oil offset global angst
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(Reuters) - London's FTSE 100 eked out modest gains on the back of strength in mining companies and oil stocks on Tuesday, alleviating some anxiety after the United States imposed more sanctions on Tehran and before Sino-U.S. trade talks this week.The FTSE 100 erased earlier losses to edge 0.1% higher, while the mid-cap FTSE 250 lost 0.1%.Shares of heavyweight miners rose after a strike at a major mine in top copper producer Chile highlighted supply constraints, while oil firms advanced in..