Siljan (lake)
Siljan, in
Dalecarlia in central
Sweden, is Sweden's sixth largest
lake. The cumulative area of Siljan and the adjacent, smaller lakes Orsasjön and Insjön is 354
km². Siljan reaches a maximum depth of 120
m, and its surface is situated 161 metres above sea level. The largest city bordered by its shore is
Mora.
The lake is located around the southwestern part of the perimeter of
Siljansringen, a geological formation which was formed 365 million years ago in the
Devonian by a major
meteorite impact. The
Cambrian,
Ordovician and
Silurian sedimentary layers in the area contain rich quantities of
fossils. Some people suspect that there might be
oil in the area, but drilling has been unsuccessful so far.
The crater measures 50 km in diameter and is the largest known impact crater in
Europe.
*
Earth Impact Database â€" Siljan
