L Erica 180 155 135 155 135 North American Plate 81 53 63 38 Scale On The Map 1 Cm 250 Km 6 6 38 53 63 1000 Af 1 (1.06 MiB) Viewed 11 times
L erica -180- 155- 135 155 -135- North American Plate 81. 53 63 38 Scale on the map: 1 cm = 250 km 6 6 38 53 63 1000+ African Plate 81 -Kane Fracture Zone. -135- 2000 km -155- QUESTION 18 - Print out this page and use a ruler to measure the thickness of each band along the Kane Fracture zone on each side (east and west) of the ridge. Fill in your answers in the table on the following page. 180- Africa Example: Between 81 and 135 Ma, a total of 1500 km of new crust was created. This means that 1500 km of crust was created over a period of 54 million years (135-81-54). So the spreading rate is 1500 km / 54 Ma = 28 km/Ma = 28 mm/yr. [
Time Interval (Ma) 0-9 9-38 38-53 53-63 63-81 81-135 135-155 155-180 Duration (Ma) East thickness (km) West thickness (km) Total thickness (East + West) (km) Spreading rate (mm/yr) 1
Join a community of subject matter experts. Register for FREE to view solutions, replies, and use search function. Request answer by replying!