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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Bibliographic Details
Main Author: M. Lehtinen
Format: Article
Language:English
Published: Geological Society of Finland 1970-12-01
Series:Bulletin of the Geological Society of Finland
Online Access:http://www.geologinenseura.fi/bulletin/Volume42/sgs_bt_042_pages_089_093.pdf