GLOBAL MARKETS-S&P 500, Nasdaq end higher as earnings fervor calms trade jitters

* Stocks pare gains on simmering US-China trade tensions * Oil reverses gains, US Treasury yields move higher * Dollar slips as trade tensions dampen sentiment * Gold crosses $4,200 for first time (Updates to US market close) By Stephen Culp NEW YORK, Oct 15 (Reuters) – The S&P 500 and the Nasdaq closed higher on Wednesday while gold resumed its ascent as investors weighed upbeat earnings against mounting trade tensions between the United States and China. All three major U.S. stock indexes ended well below session highs as the day progressed and risk appetite cooled. The blue-chip Dow ended the day with a nominal loss. Crude prices forfeited earlier gains and safe-haven gold hit new highs as Washington and Beijing ramped up the rhetoric in their ongoing tariff dispute. U.S. President Dona