Disasters induced by geophysical effects
Earthquakes Tsunamis
 1957/58 : IGY-Campaign
IGY: International Geophysical Year
 Congresses of Geophysical interest
IUGG: Int.Union Geodesy Geophysics Other Congresses & Meetings
 Geophysically relevant cruises of ships
Cruises of Ship Polarstern
 Geophysically relevant surveys in polar regions
Arctic Antarctica

  found 1 countries with filter 1111,x,x: Geoelectrics

General Geophysics on Stamps - Allgemeine Geophysik auf Briefmarken - Géophysique sur les timbres - Selected topic(s): Geoelectrics

Angola 1971

? Geoelectrics in Soil exploration

Categories1: Geoelectrics

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Philatelic Objcts with topic: Geoelectrics on 31.05.2023