Sample
Number F539-7525
NumberF539-7525
LocalityMaardu F-539 borehole
Coordinates59.470586, 25.072688
Elevation32.10
Depth217.2
Depth / thickness (m)190
Depth to190
StratigraphyProterozoic
Date collected1960-1990
Sample purposegeochemistry and petrophysics
Rockgraphite gneiss (GNGF)
Materialgraphite gneiss
OwnerEesti Geoloogiateenistus (EGT)
InstitutionGeological Survey of Estonia
Date added2022-11-29
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