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EQ: What are the major tectonic plates of the world?
Plate Tectonics Notes
28
Starter
Paste Starter Here
Plate Tectonics Notes
9/14/15 9/14/15Application:Teacher Demo: Write observations here
Connection:
Can you find us? Map
Exit:What results from the interaction of tectonic plates?
Practice: Paste notes here
27
1 Starter2. Notes 3. Lab 4. Map5. Exit
9/14/15AGENDA
Objective 6.10 C8.9A
identify the major tectonic plates
including Eurasian, African, Indo-Australian,
Pacific, North American, and
South America.
Date Lecture/ Activity/ Lab Page8/28 Syllabus /Notebook Guidelines 1-28/28 Periodic Table/ Formula 3-48/28 Language Scripts and Quickwrites 5-68/28 Lab Report/ Safety Equipment 7-88/31 Layers of the Earth Notes 9-10 9/1 Layers of the Earth Notes 11-129/2 Rocks 13-149/3 Igneous rock 15-169/4 Sedimentary Rock 17-189/8 Metamorphic Rock 19-209/9 Rock Cycle 21-229/10 Plate Tectonics Vocabulary 23-249/11 Test 25-269/14 Plate Tectonics Map 27-28
Table of Contents
PLATE TECTONICS
• TEKS 8.9B relate plate tectonics to the formation of crustal features;
• TEKS 6.10C identify the major tectonic plates
• TEKS 6.10D describe how plate tectonics causes major geological events such as ocean basins, earthquakes, volcanic eruptions, and mountain building
Plate tectonics describes the means by which the ocean and continental crust are able to move and the results of that motion.
What is Plate Tectonics?
Key plates:• Eurasian • African • Indo-Australian
The crust of Earth is divided into plates.
Pacific Nazca North American South American
The plates are rigid and in constant motion
relative to one another.
What Causes the Tectonic Plates to
Move?
Intense heat from the core of the Earth causes
convection cells to form in the asthenosphere.
The Earth’s continental and oceanic plates sit on the hot asthenosphere. While the rock in the asthenosphere is solid, it is less rigid than the plates, and therefore moves.
While scientists do not fully understand the forces that move the plates, it is believed that the moving material in the asthenosphere drags the plates along.
Each plate moves as a distinct unit. The borders between plates are called plate boundaries.
There are three different kinds of motion that occurs
between the tectonic plates.Divergent Plate Boundary
Transform Plate Boundary
Even though the motion of the plates is very slow; about 10-40 mm/year (this is about how
fast your fingernails grow), the motion causes major
geologic events and surface features.
I can out run the tectonic
plates!
TRANSFORM
Motion: plates grind past one another
Geologic Event:
earthquakes
Surface Feature: faults
San Andreas Fault
Click here!
DIVERGENTMotion: plates move away from one another
Geologic Event:
new crust is formed
shallow earthquakes
Surface Feature:
RiftsRift valleys
Volcanic islands
mid-ocean ridge
rift valleyMid-Atlantic
Ridge
Click here!
CONVERGENTMotion: plates move toward from one another
Geologic Event:
crust material is destroyed
earthquakesvolcanic eruptions
mountain building
CONVERGENT
Surface Features:
volcanoesIsland arcsVolcanic arcsTrenchesMountain
ranges
Mount Saint Helens
Click here!
The Himalayan Mountains
Click here!
EQ: What are the major tectonic plates of the world?
Plate Tectonics Notes
28
Starter
Paste Starter Here
Plate Tectonics Notes
9/14/15 9/14/15Application:Teacher Demo: Write observations here
Connection:
Can you find us? Map
Exit:What results from the interaction of tectonic plates?
Practice: Paste notes here
27
