Geology Reference
In-Depth Information
Eurasian
plate
Turkish
plate
Juan de
Fuca plate
Sea of
Japan
Philippine
plate
Hellenic
plate
North American
plate
Adriatic
plate
l
Kuril
Trench
Iran
plate
San Andreas
Fault
Japan Trench
Marianas Trench
Caribbean
plate
Cocos
plate
East African
rift valley
system
Middle
America
Trench
Pacific
plate
Bismark
plate
New Hebrides Trench
Fiji plate
South
American
plate
Nazca
plate
Indian-
Australian
plate
African
plate
Solomon
plate
Kermadec-Tonga
Trench
Macquarie
Ridge
Atl
Antarctic plate
Ridge axis
Divergent boundary
Transform fault
Transform boundary
Subduction zone
Convergent boundary
Uncertain plate boundary
Zones of extension within continents
◗
Figure 1.12
Earth's Plates Earth's lithosphere is divided into rigid plates of various sizes that move
over the asthenosphere.
Continental-
continental
convergent
plate
boundary
Trench
Continental-
oceanic
convergent
plate
boundary
Mid-oceanic
ridge
Divergent
plate
boundary
Oceanic-
oceanic
convergent
plate
boundary
Divergent
plate
boundary
Transform
plate
boundary
Upwelling
Asthenosphere
Upwelling
Lithosphere
◗
Figure 1.13
Relationship Between Lithosphere, Asthenosphere, and Plate Boundaries An idealized
cross section illustrating the relationship between the lithosphere and the underlying asthenosphere
and the three principal types of plate boundaries: divergent, convergent, and transform.
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