Extensional margins

1
Extensional margins

• Spreading centers
• Intercontinental rift zones

2
Oceanic Spreading Centers
3
Spreading Centers

• Iceland

• Oceanic ridges

4
Gulf of Suez Rift
5
Gregory Rift, Kenya Part of the East African Rift
Valley
6
Intercontinental rifting

• Basin and Range

7
Extensional faults in Canyonlands National Park,
Utah
8
Analog models of extension

• Goto movie of our sandbox experiment