WASHINGTON (Reuters) - The BP oil spill left a large plume of hydrocarbons in deep waters of the Gulf of Mexico, and those chemicals could be there for some time, oceanographers reported on Thursday.
At least 22 miles long, 1.2 miles wide and 650 feet high, the plume was detected more than 3,000 feet beneath the Gulf's surface during a scientific expedition that ended in late June, the scientists said at a news briefing.