seafloors
Underwater ground surfaces
Seafloors are the bottoms of seas and oceans—the ground beneath bodies of saltwater.
The term appears in geology, oceanography, and marine biology: Scientists mapped the seafloors using sonar, volcanic vents on the seafloors support unique ecosystems.
Also spelled as two words: sea floors.
Particles settling in liquid
- crustHard outer layer
- tectonic platesMobile crustal sections
- mid-ocean ridgeSubmarine volcanic mountain range
- trenchLong narrow excavation
rift · volcanic · basalt · magma · subduction · hydrothermal vents · continental shelf · seamount
Ocean-dwelling organisms collectively
- benthicOf the sea bottom
- organismsIndividual living entities
- coralMarine skeletal formation
- anemonesFlowers or marine polyps
tube worms · bioluminescence · anglerfish · hagfish · crustaceans · mollusks · sponges · bacteria
Underwater exploration vehicle
- sonarUnderwater detection by echoes
- mappingDiagram of correspondences
- oceanographyScientific study of seas
- researchSystematic fact-finding effort
Mariana Trench · Challenger Deep · ROV · diving · bathymetry · expedition · discovery · survey
Extracting earth's resources
- oilSlippery viscous fluid
- gasFormless, expanding substance
- drillingHole-making by rotation
- extractionAct of removing
reserves · nodules · cobalt · nickel · copper · rare earth · petroleum · exploitation
sediment
Particles settling in liquid
- crustHard outer layer
- tectonic platesMobile crustal sections
- mid-ocean ridgeSubmarine volcanic mountain range
trench · rift · volcanic · basalt · magma · subduction · hydrothermal vents · continental shelf · seamount · fault lines
marine life
Ocean-dwelling organisms collectively
anemones · tube worms · bioluminescence · anglerfish · hagfish · crustaceans · mollusks · sponges · bacteria · chemosynthesis
submersible
Underwater exploration vehicle
- sonarUnderwater detection by echoes
- mappingDiagram of correspondences
- oceanographyScientific study of seas
research · Mariana Trench · Challenger Deep · ROV · diving · bathymetry · expedition · discovery · survey · samples
mining
Extracting earth's resources
extraction · reserves · nodules · cobalt · nickel · copper · rare earth · petroleum · exploitation · prospecting
seafloorsmountain peaks
Highest elevations of ranges
mountaintops · summits · hilltops · highlands · peaks
seafloorsdry land
Earth above water
continents · landmasses · terra firma · shores · coastlines
seafloorssea surface
Water-air interface
ocean surface · water surface · surface waters · waves · sea level