New evidence for an impact origin of Lake Lappajärvi, western Finland: a preliminary report
Field and labaratory investigations have produced new petrological, mineralogical and chemical evidence in favor of a meteorite impact origin of Lake Lappajärvi. Petrological evidence includes the occurrence of a shock-metamorphosed rock series with two types of impact lavas (locally called »kärnäit...
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Format: | Article |
Language: | English |
Published: |
Geological Society of Finland
1970-12-01
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Series: | Bulletin of the Geological Society of Finland |
Online Access: | http://www.geologinenseura.fi/bulletin/Volume42/sgs_bt_042_pages_089_093.pdf |