Siljan Ring 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 the Devonian period, about 376.8 ± 1.7 Ma. This coincides around the first Devonian extinction, the Kellwasser Event or Late Frasnian extinction at 376.1 Ma ± 1.6 Ma. The effects of the impact can clearly be seen in the bedrock in the area. The Cambrian,
Pere Valentí Mora Mora was mainly used as a backup to Salvador Sadurní and Pedro María Artola during his spell at "Barça", but still featured in the 1978 Copa del Rey Final. He also held a record of being 406 minutes without conceding in European competitions, which was subsequently broken by Víctor Valdés. In the summer of 1979, Mora signed with fellow La Liga side Rayo Vallecano. He was an undisputed starter during his stint, appearing in no less than 34 matches per season but suffering relegation in his first. In 1983, Mora joined Real Murcia in the top level. He retired three