Home›ConceptsCategoryConcepts35 entries. Click any to see everything it connects to.BrowseCompareCompare At A Past YearEnter a year to compare these entries as the atlas records them at that moment. Leave it empty for the present. A year before the common era is entered with a minus sign, so 44 BCE is minus 44.Show This YearSelect all 35AnthropoceneProposed Time Unit3 linksAsthenosphereConcepts4 linksBeaufort ScaleConcepts4 linksCatastrophismConcepts4 linksContinental DriftConcepts5 linksCore-Mantle BoundaryConcepts4 linksEnvironmental HealthCross-Disciplinary Concept6 linksFujita ScaleObservational Scale2 linksGeologic Time ScaleConcepts4 linksGeosyncline TheoryHistorical Theory2 linksGreenhouse EffectConcepts5 linksIsostasyConcepts5 linksKoppen Climate ClassificationConcepts4 linksLaw of SuperpositionConcepts8 linksLithosphereConcepts4 linksMantle PlumeConcepts8 linksMilankovitch CyclesConcepts5 linksModified Mercalli Intensity ScaleObservational Scale4 linksMohorovicic DiscontinuityConcepts3 linksMohs Hardness ScaleConcepts8 linksMoment Magnitude ScaleConcepts4 linksNeptunismHistorical Theory2 linksPangaeaConcepts5 linksPlutonismHistorical Theory4 linksPrinciple of Cross-Cutting RelationshipsStratigraphic Principle7 linksPrinciple of Faunal SuccessionConcepts6 linksPrinciple of Original HorizontalityConcepts6 linksRadiometric DatingConcepts3 linksRichter Magnitude ScaleConcepts5 linksSaffir-Simpson Hurricane Wind ScaleObservational Scale2 linksSnowball EarthConcepts4 linksThe Wilson CycleConcepts6 linksTransform FaultConcepts5 linksUniformitarianismConcepts5 linksVolcanic Explosivity IndexObservational Scale7 links