Malpelo Ridge
Volcanic seamount chain on the Nazca Plate
The Malpelo Ridge (Spanish: Dorsal de Malpelo) is an elevated part of Nazca Plate off the Pacific coast of Colombia. It is a faulted chain of volcanic rock of tholeiitic composition.[1] The Malpelo Ridge may have originated simultaneously as Carnegie Ridge, and thus represent an old continuation of Cocos Ridge.[2] It is thought to have acquired it present position due to tectonic movements along the Panama Fracture Zone.[2]
References
- ^ Lonsdale, Peter; Fornari, Daniel (1980). "Submarine geology of Malpelo Ridge, Panama Basin". Marine Geology. 36 (1–2): 65–83. Bibcode:1980MGeol..36...65L. doi:10.1016/0025-3227(80)90041-9.
- ^ a b Marcaillou, Boris; Charvis, Philippe; Collot, Jean-Yves (2006). "Structure of the Malpelo Ridge (Colombia) from seismic and gravity modelling". Marine Geophysical Researches. 27 (4): 289–300. Bibcode:2006MarGR..27..289M. doi:10.1007/s11001-006-9009-y. S2CID 129634673.
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Major South American geological features
- Antarctic
- Caribbean
- Cocos
- Coiba
- Malpelo
- Nazca
- North Andes
- Scotia
- South American
- Aguapeí
- Amazon Rift
- Asunción Rift
- Cuyo Rift
- Espino
- Neuquén Rifts
- Paramirim
- Salta Rifts
- Altiplano
- Amazon
- Andean foreland
- Central Brazil
- Chaco
- Colorado
- Cuyo
- Eastern Venezuela
- Golfo San Jorge
- Magallanes
- Malvinas
- Neuquén
- Pantanal
- Paraíba
- Paraná
- Salta
- Solimões
- Andean
- Brasiliano
- Cariri Velhos
- Chonide
- Famatinian
- Gondwanide
- Juruá
- Pampean
- San Rafael
- Sunsás
- Terra Australis
- Tilcarian
| Volcanic provinces | |
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| Hotspots |
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