Map showing the location of Nazca Ridge off the west coast of Peru
The Nazca Ridge is a submarine ridge, located on the Nazca Plate off the west coast of South America. This plate and ridge are currently subducting under the South American Plate at a convergent boundary known as the Peru-Chile Trench at approximately 7.7 cm (3.0 in) per year.[1] The Nazca Ridge began subducting obliquely to the collision margin at 11°S, approximately 11.2 Ma, and the current subduction location is 15°S.[2] The ridge is composed of abnormally thick basaltic ocean crust, averaging 18 ±3 km thick.[3] This crust is buoyant, resulting in flat slab subduction under Peru.[4] This flat slab subduction has been associated with the uplift of Pisco Basin[5] and the cessation of Andes volcanism and the uplift of the Fitzcarrald Arch on the South American continent approximately 4 Ma.[6]
^Regard, V.; Lagnous, R.; Espurt, N.; Darrozes, J.; Baby, P.; Roddaz, M.; Calderon, Y.; Hermoza, W. (2009). "Geomorphic evidence for recent uplift of the Fitzcarrald Arch (Peru): A response to the Nazca Ridge subduction" (PDF). Geomorphology. 107 (3–4): 107–117. Bibcode:2009Geomo.107..107R. doi:10.1016/j.geomorph.2008.12.003. S2CID 18260573.
^Hampel, Andrea (2002). "The migration history of the Nazca Ridge along the Peruvian active margin: a re-evaluation". Earth and Planetary Science Letters. 203 (2): 665–679. Bibcode:2002E&PSL.203..665H. doi:10.1016/S0012-821X(02)00859-2.
^Woods, T.M.; Okal, E.A. (1994). "The structure of the Nazca Ridge and the Sala y Gomez seamount chain from dispersion of Rayleigh waves". Geophysical Journal International. 117: 205–222. doi:10.1111/j.1365-246X.1994.tb03313.x.
^Gutscher, M.A.; Spakman, W.; Bijwaard, H.; Engdalh, E.R. (2000). "Geodynamics of flat subduction: Seismicity and tomographic constraints from the Andean margin". Tectonics. 19 (5): 814–833. Bibcode:2000Tecto..19..814G. doi:10.1029/1999TC001152.
^Dunbar, Robert B.; Marty, Richard C.; Baker, Paul A. (1990). "Cenozoic marine sedimentation in the Sechura and Pisco basins, Peru". Palaeogeography, Palaeoclimatology, Palaeoecology. 77 (3–4): 235–261. Bibcode:1990PPP....77..235D. doi:10.1016/0031-0182(90)90179-B.
^Espurt, N.; Baby, P.; Brusset, S.; Roddaz, M.; Hermoza, W.; Regard, V.; Antoine, P.-O.; Salas-Gismondi, R.; Bolaños, R. (2007-06-01). "How does the Nazca Ridge subduction influence the modern Amazonian foreland basin?". Geology. 35 (6): 515. Bibcode:2007Geo....35..515E. doi:10.1130/g23237a.1. ISSN 0091-7613.
The NazcaRidge is a submarine ridge, located on the Nazca Plate off the west coast of South America. This plate and ridge are currently subducting under...
The Chile Ridge, also known as the Chile Rise, is a submarine oceanic ridge formed by the divergent plate boundary between the Nazca Plate and the Antarctic...
correlated with the subduction of bathymetric highs, the NazcaRidge and the Juan Fernandéz Ridge, respectively. The thick, buoyant oceanic crust lowers...
the subduction of oceanic crust beneath the South American Plate as the Nazca Plate and South American Plate converge. These processes were accelerated...
The Nazca Plate or Nasca Plate, named after the Nazca region of southern Peru, is an oceanic tectonic plate in the eastern Pacific Ocean basin off the...
Island, and extends 2,700 km (1,700 mi) east to the NazcaRidge. The ridge was formed by the Nazca Plate moving over the Easter hotspot. Located about...
Gakkel Ridge – Mid-oceanic ridge under the Arctic Ocean between the North American and Eurasian Plates(Mid-Arctic Ridge) NazcaRidge – Submarine ridge off...
mid-ocean ridges (also called "rises") such as the East Pacific Rise, Chile Rise and Juan de Fuca Ridge. The plates that host the fractures are Nazca, Pacific...
Colombia, Ecuador, and Peru. It is formed as a result of subduction of the Nazca Plate and Antarctic Plate underneath the South American Plate. The belt...
The Nazca booby (Sula granti) is a large seabird of the booby family, Sulidae, native to the eastern Pacific. First described by Walter Rothschild in...
result of the subduction of two buoyant aseismic ridges, the NazcaRidge and the Juan Fernández Ridge, respectively. Around Taitao Peninsula flat-slab...
the outer slope will often show seafloor spreading ridges oblique to the horst and graben ridges. Trench morphology is strongly modified by the amount...
along the East Pacific Rise and the Cocos Ridge, specifically in a complicated area geologists call the Cocos-Nazca spreading system. From the rise the plate...
American Plate, the Nazca Plate and the Antarctic Plate. This triple junction is unusual in that it consists of a mid-oceanic ridge, the Chile Rise, being...
Sandwich Plate; the westerly edge is a convergent boundary with the subducting Nazca Plate; and the northerly edge is a boundary with the Caribbean Plate and...
the NazcaRidge. Anderson, W.D. Jr., 2008. A new species of the perciform fish genus Plectranthias (Serranidae: Anthiinae) from the NazcaRidge in the...
Muraenichthys. It is a marine, deep water-dwelling eel which is endemic to the NazcaRidge in the southeastern Pacific Ocean. It is known to dwell at a depth of...
plate interface and is associated with the subduction of the 1.5 km high NazcaRidge beneath the South American plate. This was a complex event, and there...
the southeastern Pacific near Chile off the Juan Fernández Islands, NazcaRidge and the Desventuradas Islands, where it lives a demersal lifestyle inhabiting...
due to the presence of ridges on the downgoing plate: The NazcaRidge in the gap between the NVZ and CVZ, the Juan Fernandez Ridge in the one between the...
Island, and extends 2,700 km (1,700 mi) east to the NazcaRidge. The ridge was formed by the Nazca Plate moving over the Easter hotspot. Located about...
family Epigonidae found in the Southeast Pacific on the seamounts in the NazcaRidge. On the Revision of the Genus Epigonus, Rafinesque (Perciformes, Epigonidae):...
ovoviviparous. The shark appears to be endemic to two areas. The Nazcaridge and the Sala y Gomez ridge. Ebert, D.A.; Concha, F.; Herman, K.; Kyne, P.M. (2020)...
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