By Claudia Assis
SAN FRANCISCO (MarketWatch) -- Gold futures on Thursday turned higher and crude-oil futures slipped after U.S. Federal Reserve officials detailed another round of large-scale bond purchases to propel the U.S. economy. Gold for December delivery GCZ2 +0.92% rose $14.10, or 0.8%, to $1,747.60 an ounce on the New York Mercantile Exchange's Comex division. The metal had changed hands around $1,728 before the announcement and jumped to as high as $1,756.30 on the news. Oil rose immediately after the announcement, but such gains were short-lived. The October contract CLV2 +0.65% recently retreated 44 cents, or 0.4%, to $96.64 a barrel on the New York Mercantile Exchange. Oil had traded at $97.37 before details of the plan were released.