-
400
Rifting
734-650 million years ago
-Divergent boundries
-Lithosphere is cracking and spreading which causes rifts
-Creates basins
-Above sea level rifts = rift valley
-May be finned with water = rift lake
-Impact: Rifts have sedimentary rocks which hold oils and gasses that are used and are important to the economy. Citations:
"Rift." Wikipedia. Wikimedia Foundation, Web. 08 Mar. 2015.
http://education.nationalgeographic.com/education/encyclopedia/rift-valley/?ar_a=1 -
500
Blue Ridge Mountains
Formed about 400 million years ago
-North America and Eruasian plates collided into each other and began to form the blue ridge mountains
-Gorges and canyons can be found
-Gold, copper, marble, and talc can be found
-Impact: Mountains acted as barrier for settlers because it prevented them from colonizing westward. Citations
"Blue Ridge Mountains." Wikipedia. Wikimedia Foundation, Web. 17 Mar. 2015.
https://nikonpelli.files.wordpress.com/2012/07/blue-ridge-mountains-0717.jpg -
Jan 1, 600
Coastal Plains
Began 47 million years ago
-Flat sloping ground
-Climate warmed and cooled several times
-Land covered and uncovered from sea levels falling/rising
-Sand Hills, Uwharrie Mountains, & Outer Banks
-Impact: Sea level rising = unhealthy estuaries and saltwater intrusion Citations:
"NC Department of Environment and Natural ResourcesCoastal Management - Sea Level Rise." NCDENR.
"Carolina Geology." Carolina Geology. Web. 10 Mar. 2015.
http://www.history.ncdcr.gov/centennial/map/nc-relief-map.htm -
Jan 1, 700
Ice Ages
1.7 million years ago
-Glaciers and ice caps continuously formed again and melted
-Sea levels rose and fell and Coastal plain exposed
-Ridges created formed Barrier Islands
-Impact: If the Barrier Islands weren't there, the population of the animals, such as turtles, will severely decrease. Citations:
"1.2 The Natural History of North Carolina." The Natural History of North Carolina. N.p., n.d. Web. 06 Mar. 2015.
http://www.pbs.org/wgbh/nova/earth/cause-ice-age.html -
Jan 1, 1500
Appalachian Mountains
Formed about 480 million years ago
-In Eastern North Carolina
-System of mountains
-Created by plates colliding into each other (Convergent Boundary) Citations:
"Appalachian Mountains." Wikipedia. Wikimedia Foundation, Web. 03 Mar. 2015.
http://www.allposters.com/-sp/Autumn-View-of-Linville-Gorge-in-the-Appalachian-Mountains-Posters_i8999509_.htm -
Barrier Islands
-Islands are narrow and are parallel to the shorline
-Barrier islands protect mainland
-Formed when sea level rose and winds or waves moved the sand around until isnlands formed Citations:
"2 How Is Coastal Sand Formed into Barrier Islands?" How Is Coastal Sand Formed into Barrier Islands? Web. 10 Mar. 2015.
"SHORELINES." SHORELINES. Web. 10 Mar. 2015.
http://www.learnnc.org/lp/editions/cede_smsandvol/309
http://www.learnnc.org/lp/editions/cede_smsandvol/309 -
Fall Zones
-Also called the escarpment
-Fall lines are the break between the hard, resistiant "basement rock" (oldest metamorphic and igneous rock that make up continents) and the softer sedimentary rock that makes up coastal plain
-Known around rivers and waterfalls
-Formed by erosion when sedimentary rocks wear away
-Creates elevation differences Citations:
"Fall Line." Wikipedia. Wikimedia Foundation, Web. 08 Mar. 2015.
http://en.wikipedia.org/wiki/Fall_line -
River Basins
10,000 years ago, humans began living on watersheds (aka river basins)
-Land where water flows into a river
-Valleys are formed by a river flowing inbetween mountains
-Convergent boundary plates form mountains Citations:
"Drainage Basins And Watersheds - Geology For Kids - By KidsGeo.com." Drainage Basins And Watersheds - Geology For Kids - By KidsGeo.com. Web. 10 Mar. 2015.
http://triangleenvironment.wikispaces.com/CleanWater
http://triangleenvironment.wikispaces.com/CleanWater -
Shorelines
-The edge where body of water meets the land
ex. beach
-Formed from erosion in the water
-Waves move the water up and down the shore Citations:
"Shoreline Science: Exploring the Erosive Energy of Waves." Scientific American Global RSS. Web. 10 Mar. 2015.
http://www.gameinformer.com/forums/f/31/t/32123.aspx -
Valley
- Low area between mountains or hills and are caused by surface depression -Erosion & Rivers = V-Shaped valleys -Glaciers = U-Shaped valleys -Deep, narrow valleys are called canyons -Low areas have valleys with an average slope and places like the mountains have a steeper and narrower slope
"Valleys: Face of the Earth." Valleys: Face of the Earth. Web. 16 Mar. 2015.
http://commons.wikimedia.org/wiki/File:1_yosemite_valley_view_z.jpg -
Continental Slope
16,000 years ago, continental shelf (been around for over 200 million years) and river valleys of Ancient North Carolina begin to flood due to melting glaciers
-As the sea rises, the continenental slope (continental shelf edge) increases in depth underwater
-Impact: Continental Slopes acts as habitats for the deep sea creatures that live in darkness. Citations:
North Carolina Museum of Natural Sciences**(Post my info on edmodo)
http://www.britannica.com/EBchecked/topic/134990/continental-slope
