Home›Geological Formations›Geological AgeBrowse ByGeological AgeGeological AgeConnectionsComments (0)Reader Challenges (0)Geological AgeFilter Results31 entriesFormation FamilyAllBalancing and Split Rocks (1)Calderas and Crater Lakes (2)Canyons (3)Caves and Cave Systems (4)Cenozoic and Ice Age Fossil Sites (4)Cinder Cones and Volcanic Cones (3)Coastal and Shoreline Landforms (1)Coastal Dunes (1)Coastal Rock Formations (1)Columnar Basalt Formations (4)Cratons and Shields (3)Desert Dunes and Sand Seas (1)Domes and Uplifts (6)Fault Zones and Fault Scarps (4)Fossil-Bearing Stratigraphic Formations (17)General Reef and Coast Concepts (1)Geothermal and Hydrothermal Features (2)Glaciers of Antarctica (3)Gorges and Ravines (5)Granite Domes and Bornhardts (1)Granite Peaks and Spires (1)Hoodoos and Earth Pillars (1)Impact Craters (3)Islands and Archipelagos (filed here) (8)Islands of Asia (2)Islands of Europe (8)Islands of North America (6)Karst Landscapes and Landforms (2)Lava Tubes and Lava Formations (6)Mesozoic Fossil Sites (3)Monadnocks and Isolated Hills (1)Mountain Ranges and Hill Ranges (1)Mountain Ranges and Peaks (16)Named Monolithic Rocks and Formations (5)Named Scenic Rock and Cliff Formations (4)Named Volcanoes (4)Natural Arches and Rock Bridges (1)Paleozoic Fossil Sites (5)Peneplains and Erosion Surfaces (2)Precambrian and Ediacaran Fossil Sites (2)Reefs and Shoals of the Atlantic and Caribbean (2)Reefs and Shoals of the Pacific and Australia (1)Ridges, Cols and Gaps (1)Rift Valleys and Depressions (4)Rock Pillars, Towers and Weathered Rock Groups (3)Ross Sea Region (3)Salt Flats and Playas (1)Sea Stacks and Coastal Rock Formations (1)Sedimentary and Rift Basins (2)Sedimentary Basins and Depressions (6)Shield Volcanoes (6)Sinkholes and Blue Holes (1)Stacks and Eroded Coastal Rocks (1)Stratovolcanoes and Composite Volcanoes (9)Structural Geology Concepts (4)Table Mountains and Tepuis (1)Terranes and Suture Zones (4)Valleys and Depressions (filed here) (2)Valleys of Eastern Europe and the Balkans (2)Valleys of Europe (11)Valleys of North America (6)Valleys of Oceania (2)Valleys of Peninsular Italy (2)Valleys of Scandinavia (1)Valleys of South America (1)Valleys of Southern and Western Europe (3)Valleys of the British Isles (4)Volcanic Islands and Archipelagos (4)Volcanic Valleys and Depressions (1)Formation TypeAllBalancing and Split Rocks (1)Calderas and Crater Lakes (2)Canyons (3)Caves and Cave Systems (4)Cenozoic and Ice Age Fossil Sites (4)Cinder Cones and Volcanic Cones (3)Coastal and Shoreline Landforms (1)Coastal Dunes (1)Coastal Rock Formations (1)Columnar Basalt Formations (4)Cratons and Shields (3)Desert Dunes and Sand Seas (1)Domes and Uplifts (6)Fault Zones and Fault Scarps (4)Fossil-Bearing Stratigraphic Formations (17)General Reef and Coast Concepts (1)Geothermal and Hydrothermal Features (2)Gorges and Ravines (5)Granite Domes and Bornhardts (1)Granite Peaks and Spires (1)Hoodoos and Earth Pillars (1)Impact Craters (3)Islands and Archipelagos (filed here) (8)Islands of Asia (2)Islands of Europe (8)Islands of North America (6)Karst Landscapes and Landforms (2)Lava Tubes and Lava Formations (6)Mesozoic Fossil Sites (3)Monadnocks and Isolated Hills (1)Mountain Ranges and Hill Ranges (1)Mountain Ranges and Peaks (16)Named Monolithic Rocks and Formations (5)Named Scenic Rock and Cliff Formations (4)Named Volcanoes (4)Natural Arches and Rock Bridges (1)Paleozoic Fossil Sites (5)Peneplains and Erosion Surfaces (2)Precambrian and Ediacaran Fossil Sites (2)Reefs and Shoals of the Atlantic and Caribbean (2)Reefs and Shoals of the Pacific and Australia (1)Ridges, Cols and Gaps (1)Rift Valleys and Depressions (4)Rock Pillars, Towers and Weathered Rock Groups (3)Ross Sea Region (3)Salt Flats and Playas (1)Sea Stacks and Coastal Rock Formations (1)Sedimentary and Rift Basins (2)Sedimentary Basins and Depressions (6)Shield Volcanoes (6)Sinkholes and Blue Holes (1)Stacks and Eroded Coastal Rocks (1)Stratovolcanoes and Composite Volcanoes (9)Structural Geology Concepts (4)Table Mountains and Tepuis (1)Terranes and Suture Zones (4)Valleys and Depressions (filed here) (2)Valleys of Eastern Europe and the Balkans (2)Valleys of North America (6)Valleys of Oceania (2)Valleys of Peninsular Italy (2)Valleys of Scandinavia (1)Valleys of South America (1)Valleys of Southern and Western Europe (3)Valleys of the British Isles (4)Volcanic Islands and Archipelagos (4)Volcanic Valleys and Depressions (1)WhereAllAfrica (4)Algeria (1)Andorra (1)Antarctica (8)Argentina (6)Australia (16)Austria (3)Belarus (2)Belize (3)Bolivia (2)Botswana (1)Brazil (3)Bulgaria (2)California (1)Cameroon (2)Canada (11)Chad (3)Chile (5)China (15)Colombia (4)Comoros (1)Czechia (3)Denmark (3)Ecuador (1)Estonia (2)Eswatini (1)Ethiopia (1)Europe (2)Finland (4)France (9)Germany (8)Greece (3)Greenland (5)Guatemala (1)Hong Kong (1)Hungary (2)Iceland (1)India (6)Indonesia (2)Iran (1)Iraq (1)Ireland (5)Israel (1)Italy (5)Japan (3)Kazakhstan (4)Kenya (3)Kyrgyzstan (5)Latvia (1)Libya (3)Lithuania (1)Luxembourg (1)Malaysia (5)Mexico (4)Mongolia (1)Morocco (2)Mozambique (2)Namibia (2)Netherlands (3)New Zealand (2)Niger (1)North Korea (2)North Macedonia (1)Norway (9)Oman (3)Pakistan (1)Peru (7)Philippines (4)Poland (3)Portugal (2)Romania (2)Russia (8)Serbia (2)Slovakia (2)South Africa (6)South Korea (1)Spain (2)Svalbard (2)Sweden (5)Switzerland (3)Taiwan (5)Tajikistan (2)Tanzania (3)Thailand (1)Timor-Leste (1)Turkey (1)Uganda (1)Ukraine (4)United Arab Emirates (2)United Kingdom (18)United States (22)Uzbekistan (2)Venezuela (1)Formed By (Process)AllErosion (20)Faulting (8)Glaciation (8)Karstification (9)Metamorphism (1)Orogeny (23)Plate Tectonics (7)Rifting (4)Sedimentation (21)Subduction (1)Volcanism (17)Weathering (5)Rock TypeAllAndesite (1)Basalt (3)Chalk (1)Chert (1)Coal (2)Conglomerate (1)Dacite (1)Dolomite (1)Gneiss (1)Granite (3)Limestone (7)Marl (1)Mudstone (1)Quartzite (1)Sandstone (9)Shale (6)Siltstone (4)Slate (1)Trachyte (4)Protected StatusAllInternational Treaty Protected Area (11)IUGS Geological Heritage Site (7)Locally or Regionally Protected (14)National Monument or Landmark (11)National Park or Reserve (22)Natura 2000 Site (4)Ramsar Wetland Site (1)UNESCO Biosphere Reserve (1)UNESCO Global Geopark (5)UNESCO World Heritage Site (21)ActivityAllActive (7)Dormant (6)Extinct (1)Visitor AccessAllOpen (12)DisciplineAllGeology (8)Geomorphology (30)Oceanography (10)Speleology (4)Stratigraphy (16)Structural Geology (11)Volcanology (7)Defining EventAllEvolution (9)Glaciation (9)Mass Extinction (13)End (Million Years Ago)All0 (3)0.0117 (1)2.58 (2)5.33 (1)23.04 (2)33.9 (1)56 (1)66 (2)145 (1)201.4 (1)251.9 (1)251.902 (1)298.9 (1)358.86 (1)419.62 (1)443.1 (1)485.4 (1)538.8 (3)635 (1)720 (1)1000 (1)1600 (1)1800 (1)2500 (1)RankAllEon (2)Epoch (7)Era (6)Period (16)Start (Million Years Ago)All0.0117 (1)2.58 (2)5.33 (1)23.04 (2)33.9 (1)56 (1)66 (3)143.1 (1)201.4 (1)251.9 (1)251.902 (1)298.9 (1)358.86 (1)419.62 (1)443.1 (1)486.85 (1)538.8 (2)635 (1)720 (1)1000 (2)1600 (1)2050 (1)2500 (2)4000 (1)Show ResultsBrowseCompareArcheanGeological Age16 entriesCambrianGeological Age19 entriesCarboniferousGeological Age23 entriesCenozoicGeological Age10 entriesCretaceousGeological Age51 entriesCryogenianGeological Age1 entryDevonianGeological Age13 entriesEdiacaranGeological Age5 entriesEoceneGeological Age17 entriesHoloceneGeological Age15 entriesJurassicGeological Age24 entriesMesoproterozoicGeological Age1 entryMesozoicGeological Age9 entriesMioceneGeological Age23 entriesNeogeneGeological Age2 entriesNeoproterozoicGeological Age3 entriesOligoceneGeological Age14 entriesOrdovicianGeological Age14 entriesOrosirianGeological Age1 entryPaleoceneGeological Age7 entriesPaleogeneGeological Age8 entriesPaleoproterozoicGeological Age7 entriesPaleozoicGeological Age6 entriesPermianGeological Age15 entriesPleistoceneGeological Age37 entriesPlioceneGeological Age12 entriesProterozoicGeological Age7 entriesQuaternaryGeological Age15 entriesSilurianGeological Age11 entriesTonianGeological Age1 entryTriassicGeological Age23 entriesConnectionsShowing the first 400 of 2,839 connections.Comments (0)No comments yet. 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