coasts Flashcards
What is an example of an igneous rock?
Granite
Other examples include basalt.
What is an example of a sedimentary rock?
Limestone
Other examples include sandstone.
What is an example of a metamorphic rock?
Marble
Other examples include slate.
What characterizes a constructive wave?
Strong swash, weak backwash, low wave frequency
Wave frequency is typically 6–8 per minute.
What characterizes a destructive wave?
Weak swash, strong backwash, high wave frequency
Wave frequency is typically 10–14 per minute.
What is a concordant coastline?
Rock layers are parallel to the shore
This affects erosion and deposition patterns.
What is a discordant coastline?
Rock layers are perpendicular to the shore
This can lead to varying coastal features.
What is fetch?
The distance over water that wind blows to generate waves
Fetch plays a significant role in wave size and energy.
What is the definition of the coastal zone?
The interface between land and sea, including landforms like beaches, cliffs, and dunes
This area is crucial for various ecological and geological processes.
What is swash?
Movement of water up the beach after a wave breaks
This process can contribute to beach formation.
What is backwash?
Movement of water down the beach back to the sea
This process can lead to erosion of the beach.
