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Locality
Mehikoorma 421 borehole
Depth (m)
Thickness (m)
Rock
Stratigraphy
Author
From
To
514.20548.5034.30Paleoproterozoic
Puura, Väino
457.00514.2057.20Kotlin Stage
508.20514.206.00Gdov Formation
461.40508.2046.80Kotlin Formation
457.00461.404.40Voronka Formation
457.00514.2057.20Ediacaran
371.40457.0085.60Cambrian
414.20457.0042.80Lontova Stage
414.20457.0042.80Baltic Lower Cambrian
379.40414.2034.80Middle Cambrian (old nomenclature)
371.40379.408.00Petseri Formation
379.40414.2034.80Paala Formation
371.40379.408.00Upper Cambrian (old nomenclature)
246.20371.40125.20Ordovician
371.38371.400.02Zebre Formation
Meidla, Tõnu
371.38371.400.02Lower Ordovician
Meidla, Tõnu
330.70371.3840.68Middle OrdovicianPõlma, 1982
361.10371.3810.28Volkhov StagePõlma, 1982
361.10371.3810.28Kriukai FormationPõlma, 1982
348.50361.1012.60Kunda StagePõlma, 1982
360.00361.101.10Šakyna memberPõlma, 1982
345.50348.503.00Aseri StagePõlma, 1982
352.00360.008.00Baldone FormationPõlma, 1982
341.70345.503.80Lasnamägi StagePõlma, 1982
330.70341.7011.00Uhaku StagePõlma, 1982
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