Accretionary Wedge: Definition & Formation


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question 1 of 3

Where would you find an accretionary wedge?

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1. What is the term for the plate boundary where one plate dives beneath another?

2. What is the term for the chaotic accumulation of rock and sediment that forms as material is scraped off the down-going plate in a subduction zone?

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About This Quiz & Worksheet

This combination of assessments will determine how much you know about accretionary wedges, an important geological topic. The quiz will look at types of rock and plate boundaries, ophiolite, and accretionary wedges.

Quiz & Worksheet Goals

Practice questions will discuss the following topics:

  • Chaotic accumulation of rock and sediment
  • Location of accretionary wedges
  • Types of plate boundaries
  • Rock types
  • Ophiolite

Skills Practiced

You will have a chance to demonstrate your ability in:

  • Reading comprehension - ensure that you draw the most important information about accretionary wedges from the related lesson
  • Information recall - access the knowledge you've gained regarding ophiolite
  • Knowledge application - use your knowledge to answer questions about where to find accretionary wedges
  • Interpreting information - verify that you can read information regarding plate boundaries and interpret it correctly

Additional Learning

Take a look at the complementary lesson entitled Accretionary Wedge: Definition & Formation for more information on this subject. Some objectives covered in this lesson will include:

  • Define key vocabulary, such as igneous rock and plate tectonics
  • Identify the types of rock and how they were formed
  • Relate what you learn in the lesson to real life examples, such as shoveling snow