Types of Boundaries

• Convergent Boundaries – Occurs when two plates of the earths crusts are moving toward each other

• Divergent Boundaries – Occurs when two plates are moving away from each other

• Strike Slip Boundaries – Occurs when two plates collide at an angle

What is a strike-slip boundary?

A strike-slip boundary is when a piece of land goes left and the other goes right or the opposite way

Types of faults• Boundaries cause faults• There are four types of faults, depending on the stress state that produces it.

Famous Locations

Some Famous Locations of the strike-slip boundaries are…

• New Zealand• Pacific and Australian

plates• Northern Caribbean• Cuba• Hispaniola• California

Connections

• The areas with the strike-slip boundaries are more likely to have earthquakes.

• For example, the San Andreas fault has caused several earthquakes in California

• The movement of plates in a strike-slip boundary can increase the likelihood for a tsunami.

• For example, in December, 2004, there was a large plate movement, under the sea, which cause a gigantic tsunami near Indonesia, which killed many civilians

Interesting Facts

• There are different kinds of strike-slip boundaries. For example…

Sinistral- left lateral  Dextral- right lateral  Riedel Shears En Echelon Faults Imbricate Fans Duplexes Flower Structures Positive (Palm Tree) Negative (Tulip) structure Restraining Bends Releasing Bends

Sinstral

Dextral

Historical Information

• On July 22, 1819, a very large earthquake took place, along the strike-slip boundary, between the Caribbean and North American plates in Guatemala

• There was a discovery of a major strike-slip fault in Arabia-India, around the boundary that had barley been observed before, around December, 2007

• For more click: http://www.google.com/search?q=history+of+strike+slip+boundary&hl=en&rls=com.microsoft:en-us:IE-SearchBox&rlz=1I7SUNA_en&sa=X&tbo=1&num=20&tbs=tl:1,tll:2000,tlh:2019&ei=abExSregHIi_twe80sS6CQ&oi=timeline_histogram_nav&ct=timeline-histogram&cd=11

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