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Jan 1, 1000
North Carolina Fall Zone
Geometric break between upland region of reletively hard crystalline basement rock and a coastal plain of softer sedimentary rock.
-1.8 million years ago circa
-marks the boundry of hard metomorphosed terrain. made up of rivers and an asset to divide North Carolina into four different regions:
Blue Ridge
Peidmont
Inner Coastal Plain
Outer Coastal Plain -
Jan 1, 1140
Valley
-Formed 114 million years ago.
D: A low arean between hills, often with a river running through it.
-Formed by flowing water which the valley depends on.
-Major source of fresh water and food.
-Many ancient civilizations formed around valleys for survival.
-Deposites sediment at the valley's flood plain.
-Valley characteristics depend on the river flowig through it.
-Provides fish, game (animals), and helps produce fertile soil from floods and the moisture left in the earth. -
Barrier Islands
D:Acceptionally flat/lumpyareaas of sand parallel to the mainland coast.
-Can be found on about 13% of the world's coastlines
-When waves move into shallow areas of water, they churn up sand wich deposites into a form of an underwater sandbar. This happens when the waves break and lose their energy. As the sand bars grov vertically, they rise above sea level and form barrier islands.
-Formation requirements include:
Small to moderate tidal range
Reletively low gradient shalf
Stable sea -
North Carolina River Basins
D:The portion of land drained by a river and its tributaries.
-2 million years ago
-17 river basins in North Carolina which sttretch for over 52,337 miles.
-Seen as a direct quality of life.
-River Basins collect water and carry it down stream to redeposite gravel, sand, and silt.
-Also, transferes bacteria, chemicals, and excess nutrients and organic water making it a natural filter for cleaner, safer water. -
Appalachian Mountains
Formed on a supercontinent, Pangaea, and was part of the mountain range that currently runs throigh modern day Africa. Change of plate motions- oceanic plate, Lepetus, collided with current plate, therefore sinking beneath current day America. Due to the subduction zone, the Appalachian mountains were formed.
