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Locality
Orjaku borehole
NameOrjaku borehole
NumberI2
Typeborehole (section)
CountryEstonia
ParishKäina
SettlementOrjaku
Elevation2.00
Coordinates58.80133, 22.75385
Coord. agentEesti Geoloogiakeskus (EGK)
Location remarksOrjaku küla Kassari poolsaarel
Strat. topRaikküla Stage
Strat. baseKeila Stage
RemarksPuuritud TAGI puurbrigaadi poolt 1956-62 (puurmeister J. Muru). L. Põlma joonise järgi ulatub puurauk Keila lademesse, E. Jürgensoni kirjelduse (1963) järgi lõpeb puurauk Rakvere lademes. Vahemikku 79.35-96 m vaadeldakse kui Kõrgessaare kihistu hüpostratotüüpi
Date changed2021-04-12
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