Oceans: The Basics
This is the biggest ocean on the planets
What is the Pacific Ocean?
This is responsible for ocean layering?
What is density?
Outer margins where continental crust transition to oceanic crust
What are continental margins?
This type of sediment consists of minerals that crystallize directly from seawater through various chemical reactions.
What is Hydrogenous sediment?
A near shore current that flows parallel to shore
What is a longshore current?
The total amount of solid material dissolved in water
What is salinity?
The study or science of mapping ocean depths and the topography of the ocean floor
What is bathymetry?
These types of margins are not associated with plate boundaries and experience no volcanism
What are passive continental margins?
Friction between the wind and the ocean surface causes this type of current
What are surface currents
A sandbar that completely crosses a bay
What is a baymouth bar?
These elements are the 2 main salts in seawater
What are sodium (Na) and chlorine (Cl)?
This zone is where sunlight never touches and water temps remain a few degrees above freezing
What is the deep zone?
This interconnected ridge system is the longest topographic feature on Earth's surface
What is the oceanic ridge system?
Energy traveling along the interface between ocean and atmosphere
What are waves?
Shoreline classification is based on changes with respect to this
What is sea level?
Processes that add freshwater to seawater will do this to salinity
What is decrease salinity?
What is a pycnocline?
This feature of Deep-ocean basins are generated from vast outpouring of fluid basaltic lavas
What are oceanic plateaus?
The sawing and grinding action of the water armed with rock fragments
What is abrasion?
These types of tides occur during full and new moons and have the largest tidal range
What is a spring tide?
A source of sea salts that comes from Earth's interior
What is outgassing?
This describes the temperature profile at high latitudes
What is isothermal?
This causes sediment and rock from the overriding plate to be transported into the mantle
What is subduction erosion?
The bending of waves
What is wave refraction?
These types of coasts develop because an area experiences either uplift or a drop in sea level.
What are emergent coasts