OCEANOGRAPHY #1

CROSS-SECTION OF THE ATLANTIC OCEAN

I. Purpose: To make a cross-section (profile) of the Atlantic Ocean from Cape May, NJ to Cape Roca, Portugal.

II. Description of Activity:

A. Materials: pencil, ruler, data sheet (enclosed).

B. Procedures:

1. The scales used for the graph are the following:

a. Horizontal Scale; 1 inch= 500 miles;

b. Vertical scale; 1 inch= 1000 fathoms= 6000 feet.

2. Using the data from the table, plot the points on the graph paper. Connect and label points according to the information in the footnotes.

III. Answer (and or label) the following:

A. Label the continental shelf at Cape May and Cape Roca. How wide is it at these two locations.

B. Label the continental slope.

C. Label the abyssal plane.

D. What is the vertical exaggeration of your profile?

Ocean Depths from Cape May, NJ to Cape Roca, Portugal at 39^O N Latitude.

Distance in miles Depth in fathoms

0 ¹ 0

100 100

125 1000

325 2000

475 2500

650 3000

900 2800

1125 2900

1300 3125

1425 2900

1475 2000

1600 1000

1900 2500

2000 2100

2150 1800

2200 1150

2225 ² 750

Distance in miles Depth in fathoms

2325 ² 700

2450 ² 550

2475 ³ 0

2525 1000

2700 2000

2800 2800

3150 2700

3300 2300

3400 1000

3425 500

3475 100

3500 ⁴ 0

1. Label this point Cape May.

2. Label these points North Atlantic (mid-ocean) Ridge.

3. Label this point Graciosa Island.

4. Label this point Cape Roca.

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