geologic
Of rock strata
Geologic means relating to geology—the scientific study of Earth's physical structure, substances, and history.
It describes features, processes, or timescales involving rocks, minerals, and planetary formation: geologic formations, geologic surveys, geologic time.
The geologic record preserves evidence of Earth's past in rock layers.
Also spelled geological.
Naturally formed crystalline solid
- rockSolid earthen material
- oreMetal-bearing rock
- crystalOrdered-atom solid
- quartzCrystalline silicon dioxide
granite · basalt · limestone · sandstone · shale · slate · marble · gneiss
Solid stone underground
- outcropSurfacing native stone
- formationCreation or arrangement
- strataParallel geological layers
- beddingMaterials covering a mattress
unconformity · fault · fold · anticline · syncline · monocline · dome · basin
Gradual wearing away
- weatheringAtmospheric breakdown of materials
- sedimentationParticles settling in liquid
- depositionFormal testimony under oath
- metamorphismHeat-pressure mineral alteration
crystallization · uplift · subsidence · denudation · compaction · cementation · mineralization · hydrothermal
Flat dish for food
- subductionPlate descending beneath another
- riftCrack or estrangement
- faultImperfection or blame
- earthquakeSeismic ground movement
orogeny · convergence · divergence · transform · continental drift · mantle · lithosphere · asthenosphere
Earliest geological eon
- CambrianEarliest Paleozoic period
- OrdovicianPaleozoic geological period
- SilurianPaleozoic period, mid-range
- DevonianGeologic period, 419-359 million years ago
Carboniferous · Permian · Triassic · Jurassic · Cretaceous · Paleozoic · Mesozoic · Cenozoic
Preserved ancient organism
- trilobiteExtinct segmented marine arthropod
- dinosaurExtinct Mesozoic reptile
- petrifiedSolidified or fear-paralyzed
- extinctNo longer existing
amber · paleontology · stratigraphy · megafauna · Gondwana · Pangaea · supercontinent
Science of inorganic solids
- petrologyScientific study of rocks
- seismologyStudy of ground tremors
- volcanologyStudy of erupting mountains
- geochemistryEarth's chemical makeup science
geophysics · sedimentology · geomorphology · stratigraphy · geochronology · paleoclimatology
mineral
Naturally formed crystalline solid
quartz · granite · basalt · limestone · sandstone · shale · slate · marble · gneiss · schist
bedrock
Solid stone underground
bedding · unconformity · fault · fold · anticline · syncline · monocline · dome · basin · intrusion
erosion
Gradual wearing away
- weatheringAtmospheric breakdown of materials
- sedimentationParticles settling in liquid
- depositionFormal testimony under oath
metamorphism · crystallization · uplift · subsidence · denudation · compaction · cementation · mineralization · hydrothermal
plate
Flat dish for food
- subductionPlate descending beneath another
- riftCrack or estrangement
- faultImperfection or blame
earthquake · orogeny · convergence · divergence · transform · continental drift · mantle · lithosphere · asthenosphere · crust
Precambrian
Earliest geological eon
- CambrianEarliest Paleozoic period
- OrdovicianPaleozoic geological period
- SilurianPaleozoic period, mid-range
Devonian · Carboniferous · Permian · Triassic · Jurassic · Cretaceous · Paleozoic · Mesozoic · Cenozoic · Holocene
fossil
Preserved ancient organism
- trilobiteExtinct segmented marine arthropod
- dinosaurExtinct Mesozoic reptile
- petrifiedSolidified or fear-paralyzed
extinct · amber · paleontology · stratigraphy · megafauna · Gondwana · Pangaea · supercontinent
mineralogy
Science of inorganic solids
- petrologyScientific study of rocks
- seismologyStudy of ground tremors
- volcanologyStudy of erupting mountains
geochemistry · geophysics · sedimentology · geomorphology · stratigraphy · geochronology · paleoclimatology
canyon
Deep river-cut gorge
volcano · ridge · escarpment · mesa · butte · moraine · delta · gorge · caldera · crater
geologicbiological
Relating to living organisms
biologic · atmospheric · meteorological · oceanic · astronomical
geologicinstantaneous
Happening without any delay
momentary · immediate · ephemeral · fleeting · historical
geologicman-made
Created by humans
artificial · synthetic · manufactured · constructed · anthropogenic
- geological periodNamed span of Earth history
- geologic historyEarth's temporal record
- geologic erasMajor divisions of deep time
- geologic timeEarth's age measured epochally
- geological erasNamed spans of prehistory
- geologic period