Movement of Plates

Movement of Plates And Faults

by Mervin Selmo

​Objectives

​1. Identify the three types of plate movements from a short excerpt.

2. Expound three types of plate movement based on plate tectonics theory using an illustration.

3. Cite specific examples of land forms as outcomes of plate movement.

Tectonic Plates vs. Plate Tectonics​

​

Tectonic Plates

​The Earth’s outer shell, the lithosphere, consisting of the crust and uppermost mantle, is divided into a patchwork of large tectonic plates that move slowly relatively to each other. There are 7-8 major plates and many minor plates.

​Plate Tectonics

​This is a theory that supports that supports continental drift theory and seafloor spreading

Poll

Which of the following refers to the region where plates meet?

• Plate Bondaries

• Tectonic Plates

• Fault

• Fault line

​Types of Plate Boundries

Divergent Plate Boundary -

​

Divergent plate movement occurs when plates pull apart from each other

Poll

When two tectonic plates collide, the continental crust usually rise up over the oceanic crust. What is the reason behind this?

• Less dense than oceanic crust

• Denser than continental crust

​Convergent plate boundary

convergent movement occurs when plates crush into each other and land crumples, forming trenches and mountains​

​

​oceanic-oceanic

​oceanic-continental

​continental-continental

​Transform plate boundary

​Lateral or transform fault movement occurs when plates move alongside each other in different directions

Poll

Which is an example of oceanic-oceanic convergence?

• San Andreas

• Mariana Trench

• Mt. Everest

• Himalayas Mountain Ranges

Fill in the Blanks

It is the deepest part of the ocean

​Transform Plate Boundary

​

​strike slip fault boundary

​ the plates slide past each other horizontally. This is a type of boundary that cuts through California, the well-known San Andreas Fault. The San Andreas Fault Zone, which is about 1300 km long and is tens of kilometer wide, slice through two thirds of the length of California

Open Ended

“Everything happens for a reason.” How will you relate the given quotation to the lesson?