The oil slick spreading from the site of the sunken Iranian oil tanker Sanchi is getting bigger and moving north, Chinese maritime authorities said. The Chinese State Oceanic Administration said that, as of Monday, the slick was about 9 miles long extending southwest from the site off the coast of China and another 11 miles east of the site. Sheen in aerial photos published in Chinese media was patchy. The official Xinhua News Agency reported the main sheen was growing and prevailing winds and currents were pushing it north. The Sanchi was carrying about 1 million barrels of a light form of crude oil called condensate when it crashed into a Chinese freighter on Jan. […]