Galápagos Rise
The Galápagos Rise is an extinct spreading centre located about 2,000 km west of Peru, which was active in the Miocene period between about 17.0 Ma (million years ago) and 5.8 Ma. It developed shortly after the Farallon plate broke into two parts, the Cocos and Nazca plates. During its existence the Galápagos Rise formed the eastern boundary of the Bauer microplate.[1]
Extent
[edit]The rise is made up of a series of inactive ridge and transform segments, currently within the northwestern part of the Nazca plate, southwest of the Galápagos islands, between about 8° South and 17° South latitude. The northern end of the rise is marked by two fracture zones, the North and South Gallego fracture zones. The southern end of the rise approaches close to the South Marquesas/Mendana fracture zone.[1]
References
[edit]- ^ a b Eakins, B.W.; Lonsdale, P.F. (2003). "Structural patterns and tectonic history of the Bauer microplate, Eastern Tropical Pacific". Marine Geophysical Researches. 24: 171–205. doi:10.1007/s11001-004-5882-4.