Environmental activists in Argentina applauded an Argentine Supreme Court ruling against a projected open cast gold mine using cyanide, pointing out that it set an important legal precedent...The Supreme Court rejected a suit brought by Minera El Desquite, a subsidiary of the Canadian mining company Meridian Gold...its Cordón Esquel mining works have been at a standstill since 2003...A law passed in Chubut in 2003 "absolutely prohibits" open cast metal mining, as well as the use of cyanide for gold and silver mining in the province, and the company had not fulfilled the environmental requirements established by local law. [refers to Barrick Gold]