Ocean ridge topography and spreading rates. The main features of the Mid-Atlantic Ridge and the East Pacific Rise are summarized below. Use this summary and Figure 1.1 to answer a-d below.The Mid-Atlantic Ridge has a median valley that is about 25-30 km wide and 1-2 km deep; this feature is not so well developed and may be absent along the East Pacific Rise. Gradients away from the ridge crest are approximately 1 in 100 for the Mid-Atlantic Ridge and are closer to 1 in 500 for the East Pacific Rise.Which profile (a or b) shows the Mid-Atlantic Ridge and which shows the East Pacific Rise? How do you know? Which ridge has the rougher surface relief? Explain. How do the average gradients of ocean-ridge flanks compare to those of continental margins (shelf, slope, rise)? What are the average gradients of each?The Carlsberg Ridge in the northern Indian Ocean has an average spreading rate of 1-2 cmyr-1. Which profile in Figure 1.1 should it more closely resemble?Figure 1.1. These are two representative east-west bathymetric profiles across the Mid-Atlantic Ridge and the East Pacific Rise. Vertical exaggeration is 50x. depth (km)(a)0510axis100 kmMAAway(b)axiswhat

An ocean ridge, also known as a mid-ocean ridge, is an underwater mountain range that runs through…

Answered: acific Rise. Gradients away from the…

Applications and Investigations in Earth Science (9th Edition)

9th Edition

ISBN:9780134746241

Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Chapter1: The Study Of Minerals

Section: Chapter Questions

Problem 1LR

See similar textbooks

Related questions

Question

Ocean ridge topography and spreading rates. The main features of the Mid-Atlantic Ridge and the East Pacific Rise are summarized below. Use this summary and Figure 1.1 to answer a-d below.

The Mid-Atlantic Ridge has a median valley that is about 25-30 km wide and 1-2 km deep; this feature is not so well developed and may be absent along the East Pacific Rise. Gradients away from the ridge crest are approximately 1 in 100 for the Mid-Atlantic Ridge and are closer to 1 in 500 for the East Pacific Rise.

Which profile (a or b) shows the Mid-Atlantic Ridge and which shows the East Pacific Rise? How do you know?
Which ridge has the rougher surface relief? Explain.
How do the average gradients of ocean-ridge flanks compare to those of continental margins (shelf, slope, rise)? What are the average gradients of each?
The Carlsberg Ridge in the northern Indian Ocean has an average spreading rate of 1-2 cmyr^-1. Which profile in Figure 1.1 should it more closely resemble?

Figure 1.1. These are two representative east-west bathymetric profiles across the Mid-Atlantic Ridge and the East Pacific Rise. Vertical exaggeration is 50x.