transform fault

noun Geology.
a strike-slip fault that offsets a mid-ocean ridge in opposing directions on either side of an axis of seafloor spreading.
Compare fracture zone.


Origin:
1970–75

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American Heritage
Science Dictionary
transform fault   (trāns'fôrm')  Pronunciation Key 
A type of strike-slip fault that accommodates the relative horizontal slip between other tectonic elements, such as tectonic plates, and is common along the edges of plates in mid-ocean ridge regions. The lateral displacement along transform faults often ends or changes form abruptly. See Note at fault.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
Each of these hazards marks a different kind of plate boundary-a transform
  fault to the south, a subduction zone up north.
At a transform fault, two plates slide past each other.
Transform fault-- one plate slides horizontally past another.
When two ridges are connected by a fault, this is called a transform fault, and
  the fault is the source of strike-slip events.
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