Tvären
Bay near Studsvik, Sweden
From Wikipedia, the free encyclopedia
Tvären is a circular bay close to Studsvik, Sweden.
| Tvären | |
|---|---|
Tvären Bay, Sweden, with Tvären impact structure indicated | |
  Location within Sweden | |
| Location |
|
| Impact crater structure | |
| Confidence | Confirmed |
| Diameter | 2 kilometres (1.2 mi) |
| Age | 455 Ma |
Within the bay is an ancient buried impact crater about 2 kilometres (1.2 mi) in diameter. It was first identified using reflection seismology. The crater is estimated to be about 455 million years old (Late Ordovician).[1][2]
Asteroid 7771 Tvären is named after the bay.
