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Stratigraphy
Äiamaa Formation
Belongs toBaltic lithostratigraphy (Ordovician)
Typelithostratigraphy
RankFormation
Scoperegional
Statusdeprecated
AuthorGrigelis
Year1978
Original localityÄiamaa, int. 89,2-96,0m
Age (Ma)Pirgu Stage
Date added2009-10-02
Date changed2011-12-14
Locality
Type
From (m)
To (m)
Reference
Remarks
Äiamaa borehole
holostratotype
89.296Männil, Ralf & Rõõmusoks, 1984
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