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Lumparn
Sign in to saveLumparn () is a large bay devoid of islands in the main island of Åland, Finland, bordered by Sund to the north, Lumparland to the east, Lemland to the south and Jomala to the west.
Key facts
- Terrestrial impact site.name
- Lumparn
- Terrestrial impact site.other_name
- Lumpari
- Terrestrial impact site.photo
- Lumparn.png
- Terrestrial impact site.photo_caption
- Lumparn with the impact structure area in grey
- Terrestrial impact site.map
- Finland
- Terrestrial impact site.map_caption
- Location of the crater in the Botnian Gulf
- Terrestrial impact site.map_size
- 250
- Terrestrial impact site.location
- Fasta Åland
- Terrestrial impact site.confidence
- Confirmed
- Terrestrial impact site.age
- ~1000 MaProterozoic
- Terrestrial impact site.exposed
- No
- Terrestrial impact site.drilled
- Yes
- Terrestrial impact site.province
- Åland
- Terrestrial impact site.district
- Åland
- Terrestrial impact site.municipality
- Sund, Lumparland, Lemland & Jomala
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Article
5 sectionsContents
- Description
- Gallery
- See also
- References
- External links
Lumparn () is a large bay devoid of islands in the main island of Åland, Finland, bordered by Sund to the north, Lumparland to the east, Lemland to the south and Jomala to the west.
== Description == Most of the bay fills a nine kilometer wide impact structure. The structure is estimated to be about 1000 million years old (Proterozoic). The depression was originally believed to be a rift. Extraterrestrial origin was first proposed in 1979, but not until 1993 was the impact structure finally confirmed. Long shatter cones have been discovered in the southwestern part of the bay. The remains of the crater are filled with sediments. Between Pleistocene sediments and crushed rapakivi granite bedrock there is a layer of Paleozoic (Ordovician) limestones. This makes Lumparn one of the few places in Finland where fossils have been found.
Gallery (2)
On the map
3 mapped locations