volcanic field
Multi-vent lava region
A volcanic field is an area containing multiple volcanic vents, cones, or craters formed by eruptions from a common magma source.
Unlike a single volcano with one main vent, volcanic fields scatter dozens or hundreds of small volcanic features across a region: The San Francisco volcanic field covers nearly 2,000 square miles.
Most individual vents erupt only once.
Steep volcanic debris hill
- stratovolcanoLayered cone-shaped volcanic mountain
- craterImpact or volcanic basin
- ventOpening for airflow
- lava domeSteep-sided volcanic mound
Moving volcanic discharge
- pyroclasticHot eruption debris
- ashCombustion's powdery remains
- tephraEjected volcanic material
- plumeOrnamental feather or rising column
explosive · magmatic · molten · tremor · fumarole · pumice · lava bomb · spatter
Collapsed volcanic summit basin
- magma chamberSubsurface pocket holding liquefied rock
- hotspotArea of notable activity
- lithosphereCrust plus upper mantle
- geothermalRelating to underground heat
intrusion · dike · sill · pluton · batholith · silica · andesite · rhyolite
No longer existing
- inactiveNot currently functioning
- erodedGradually degraded by elements
- weatheredEroded by exposure
- ancientVery old indeed
relict · quiescent · repose · degraded · breached · mantled · vegetated · remnant
Sharp, blocky lava flow
Collected combustion remnants
- nutrientsVital dietary substances
- mineralsInorganic natural solids
- agricultureCultivation of land, livestock
- cultivationFostering growth through care
verdant · terracing · coffee plantation · vineyard · potassium · phosphorus · trace elements · water retention
cinder cone
Steep volcanic debris hill
- stratovolcanoLayered cone-shaped volcanic mountain
- craterImpact or volcanic basin
- ventOpening for airflow
lava flow
Moving volcanic discharge
- pyroclasticHot eruption debris
- ashCombustion's powdery remains
- tephraEjected volcanic material
plume · explosive · magmatic · molten · tremor · fumarole · pumice · lava bomb · spatter · effusive
caldera
Collapsed volcanic summit basin
- magma chamberSubsurface pocket holding liquefied rock
- hotspotArea of notable activity
- lithosphereCrust plus upper mantle
geothermal · intrusion · dike · sill · pluton · batholith · silica · andesite · rhyolite · polygenetic
extinct
No longer existing
ancient · relict · quiescent · repose · degraded · breached · mantled · vegetated · remnant
aa
Sharp, blocky lava flow
pyroxene · flood basalt · lava lake · columnar jointing · glassy
ash deposits
Collected combustion remnants
- nutrientsVital dietary substances
- mineralsInorganic natural solids
- agricultureCultivation of land, livestock
cultivation · verdant · terracing · coffee plantation · vineyard · potassium · phosphorus · trace elements · water retention
volcanic fieldstratovolcano
Layered cone-shaped volcanic mountain
volcanic cone · shield volcano · Mount Fuji · Mount Vesuvius · volcanic mountain
volcanic, field, volcano, volcanism, volcanology, volcanologist, volcanoes, volcanos, fields