EntityQ117987· pop 24· linked from 131 articlesmagnetic anomalySign in to saveanomaly of the Earth's or other astronomical object's magnetic fieldConnectionsplate tectonicsEntitymagnetometerEntitygeomagnetic reversalEntityCanadaCountryNASAConceptInternational Standard Book NumberEntitycaesiumEntityrubidiumEntitycoalEntityArthur C. ClarkeEntityclayEntityaircraftEntityEuropean Space AgencyEntitygraniteEntitydigital object identifierEntityquartzEntitymagmaEntitylimestoneEntitybasaltEntitygeophysicsEntityCategoriesGeomagnetismMagnetic anomalies