Notes:
1. Continental Shelf:A continent's edge is a gently sloping-shallow area.
2. Continental slope: It is at the edge shelf where the ocean floor drops off in a steep incline.
3. Abyssal plain: A smooth and nearly flat area of the ocean floor (and in some places it is a called a trench).
4. Mid-ocean ridge: A countinous range of mountains around earth.
5. Seamounts: Mountains on an abyssal plain that are underwater and some reach above the ocean surface.
6. Magama: a hot liquid that flows out of the mantle.
7. Lava: Magma on surface.
8. Sea-floor spreading: A process where newer eruptions push the old rock away from the ridge.
2. Continental slope: It is at the edge shelf where the ocean floor drops off in a steep incline.
3. Abyssal plain: A smooth and nearly flat area of the ocean floor (and in some places it is a called a trench).
4. Mid-ocean ridge: A countinous range of mountains around earth.
5. Seamounts: Mountains on an abyssal plain that are underwater and some reach above the ocean surface.
6. Magama: a hot liquid that flows out of the mantle.
7. Lava: Magma on surface.
8. Sea-floor spreading: A process where newer eruptions push the old rock away from the ridge.
Mapping: Note that to do this, you need to know certain things. You need to know this formula for measuring ocean depth: D= V x 1/2 T. This is where D= depth(in meters), T= time(in seconds), V=speed of sound in water(1,507 meters per second). Here is the chart. After the chart, we are supposed to graph the points on the other side of the sheet.
Distance from shore (Km)
|
Time (Sec)
|
Depth (M)
|
Depth (Km)
|
10
20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 |
0.13
0.27 0.53 2.65 2.65 2.92 4.25 4.25 2.65 1.86 1.33 3.98 4.51 6.10 6.90 8.49 14.60 6.64 7.96 7.43 |
98
203 399 1996 1996 2200 3202 3202 1996 1401 1002 5967 3398 4596 5199 6397 11001 5003 5997 5598 |
0.098
0.203 0.399 1.996 1.996 2.200 3.202 3.202 1.996 1.401 1.002 5.967 3.398 4.596 5.199 6.397 11.001 5.003 5.997 5.598 |