Editing Fracture zone (section)

===Mendocino fracture zone===
The [[Mendocino fracture zone]] extends for over {{cvt|4000|km}} off the coast of California and separates the [[Pacific plate]] and [[Gorda plate]]. The bathymetric depths on the north side of the fracture zone are {{cvt|800| to |1200|m}} shallower than to the south, suggesting the seafloor north of the ridge to be younger. Geologic evidence backs this up, as rocks were found to be 23 to 27&nbsp;million years younger north of the ridge than to the south.<ref>{{cite web|title=Mendocino Fracture Zone|url=http://www.britannica.com/EBchecked/topic/374855/Mendocino-Fracture-Zone|website=Encyclopædia Britannica|access-date=28 April 2015}}</ref>