- Lumparn
Lumparn (fi. "Lumpari") 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 andJomala to the west.Most of the bay fills a nine kilometer wide
impact crater . The crater is estimated to be about 1000million year s old (Proterozoic ). The depression was originally believed to be arift . Extraterrestrial origin was first proposed in 1979, but not until 1993 the impact structure was finally confirmed. Longshatter cones have been discovered in the southwestern part of the bay. The crater is filled with sediments, betweenPleistocene sediments and crushedrapakivi granite bedrock there is a layer ofPaleozoic (Ordovician )limestone s. This makes Lumparn one of the few places in Finland wherefossil s have been found.The bay has also previously been referred to as "Lumpari" [ [http://water.worldcitydb.com/lumpari_1978598.html Lumpari World Water Features Database | WorldCityDB.com ] ] in some Finnish documents, though the
Research Institute for the Languages of Finland does not list "Lumpari" as in current usage. [ [http://kaino.kotus.fi/www/verkkojulkaisut/ortnamn/ortnamn2.html#L Svenska Ortnamn i Finland] , The Research Institute for the Languages of Finland, see "Lumparn"]External links and references
* [http://www.unb.ca/passc/ImpactDatabase/images/lumparn.htm Earth Impact Database]
* [http://www.somerikko.net/old/geo/imp/lumpa_e.htm Lumparn impact structure]
*languageicon|fi|Finnish [http://www.helsinki.fi/ml/maant/suomi.html The Landforms of Finland]
*cite journal | author=Svensson, N.-B. | title=Lumparn Bay: A Meteorite Impact Crater in the Aland Archipelago, Southwest Finland | journal=Meteoritics | year=1993 | volume=28 | issue=3 | pages=445 | url=http://adsabs.harvard.edu/abs/1993Metic..28S.445S
* [http://map3.navici.com/NTP.bHZtIDMxMDc1OTEuODk0MDIgNjY5NzYxNS41NTY3OCA4NjAgNTc0IDQgYmtnZCAzNTM0NzkwIDY5NzcyMjAgbW92ZXRvIHsgIkt1b3BpbyIgbGFiZWwgeyB9IHdhbGsgbGVnIHsgMCAwIH0gd2FsayBsZWcgeyAtMTEyIC01MyAtNDggMzA1IDk2IC05MSAwIDAgfSB3YWxrIGxlZyAiS3VvcGlvIiBsYWJlbCB9IHJvdXRlLmRyYXcgc2hpcG91dA=.j75pCateGgJE7ttW709vLDmzl7c=.pngMap of Lumparn]
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