Siljan Ring proved inconclusive. Drilling for natural gas was resumed in the late 2000s and continues as of mid-2012. The scientific premise for prospecting of this sort is based on the work of physicist Vladimir Kutcherov, who is cooperating with Igrene, the company financing the drilling operations. Siljan Ring The Siljan Ring () is a prehistoric impact crater in Dalarna, central Sweden. It is one of the 15 largest known impact craters on Earth and the largest in Europe, with a diameter of about . The impact that created the Siljan Ring occurred when a meteorite collided with the Earth's surface during
Gotzone Mora Gotzone Mora Gotzone Mora (b. Bilbao in 1948) is a Spanish social-democratic politician. She was a member of the Basque Socialist Party (""Euskadiko Alderdi Sozialista – Euskadiko Ezkerra" / "Partido Socialista de Euskadi – Euskadiko Ezkerra""/ PSE-EE) till March 2008 when she was expelled from it for advocating support for the People's Party. Since 2008 she has been a member of the People's Party (""Partido Popular"" / PP). Of humble origins, she has become knowledgeable on human migration and global social processes. She has been a sociology reader in the University of the Basque Country in Spain. She was an