Oceanography: An Invitation To Mar...

9th Edition
Garrison + 1 other
Publisher: Brooks Cole
ISBN: 9781305254282

Oceanography: An Invitation To Mar...

9th Edition
Garrison + 1 other
Publisher: Brooks Cole
ISBN: 9781305254282


Chapter 12.2, Problem 1CC
Textbook Problem

What wears down erosional coasts?

Expert Solution
To determine

The factors that wear down erosional coasts.

Explanation of Solution

Both land erosion and marine erosion work to transform the nature of a rocky coast. Erosional coasts are struck and shaped from land by river erosion, alternative freeze and thaw action of water in rock fissures, rainfall, plant roots penetration, glacial activity, scratches of wind-driven sand, rock dissolution by acids from soil, and slumping.

From the sea, big storm wave regularly generate great pressures. The crashing waves thrusts water and air into tiny rock openings. The repeated accumulation and release of pressure within these openings can deteriorate and break the rock.

The hydraulic pressure of moving water is not the only cause for coastal abrasion.  Small sand particles, gravel bits or stones tossed by the waves also effectively erode the shore. Water dissolves minerals in the rocks that contribute to the erosion of rapidly soluble rocks such as limestone...

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Chapter 12 Solutions

Oceanography: An Invitation To Marine Science, Loose-leaf Versin
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Ch. 12.3 - What is the most common feature of a depositional...Ch. 12.3 - What two marine factors are most important in...Ch. 12.3 - How does sand move on a beach?Ch. 12.3 - What is a coastal cell? Where does sand in a...Ch. 12.3 - Would longshore currents also trend north to south...Ch. 12.4 - What steps were taken in 19981999 to preserve the...Ch. 12.4 - What is the difference between sand spits and bay...Ch. 12.4 - What is the difference between sea islands and...Ch. 12.4 - Why dont deltas form at every river mouth?Ch. 12.5 - What organisms can affect coastal configuration?Ch. 12.5 - How are coral reefs classified? Who first proposed...Ch. 12.6 - Where are most atolls and guyots found?Ch. 12.6 - What is an estuary?Ch. 12.6 - Estuaries are classified by their origins. What...Ch. 12.6 - Estuaries are also classified by the type of water...Ch. 12.6 - Of what value are estuaries?Ch. 12.7 - Briefly compare the U.S. Pacific, Atlantic, and...Ch. 12.8 - Generally speaking, would you say human...Ch. 12.8 - Again, generally speaking, would you say beaches...Ch. 12 - How is an erosional coast different from a...Ch. 12 - What features would you expect to see along an...Ch. 12 - What two processes contribute to longshore drift?...Ch. 12 - What are some of the features of a sandy beach?...Ch. 12 - How are deltas classified? Why are there deltas at...Ch. 12 - What is a coastal cell? Where does sand in a...Ch. 12 - How are estuaries classified? Upon what does the...Ch. 12 - Compare and contrast the U.S. West, East, and Gulf...Ch. 12 - How do human activities interfere with coastal...

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