Taitao ophiolite

Taitao ophiolite (Spanish: Ofiolita de Taitao) is an ophiolite in Taitao Peninsula of western Patagonia, Chile. The ophiolite crops out about 10 km w to the east of the Peru-Chile trench and 50 km to the south of Chile Triple Junction —two features to which it is related.[1][2]

The ophiolite formed in connection to the subduction of the Chile Rise, a mid-ocean ridge, beneath South America.[1] More specifically it has been proposed that the ophiolite formed in a rift of the forearc region of the South American plate.[3]

The Taitao ophiolite presents a pseudostratigraphy with the following lithologies; peridotite, pyroxenite, gabbro, sheeted dykes of diabase, pillow lava and sedimentary rock.[1][2]

References
  1. Keading, M.; Forsythe, R.D.; Nelson, E.P. (1990). "Geochemistry of the Taitao ophiolite and near-trench intrusions from the Chile margin triple junction". Journal of South American Earth Sciences. 3 (4): 161–177. doi:10.1016/0895-9811(90)90001-H.
  2. Schulte, Ruth F.; Schilling, Manuel; Anma, Ryo; Farquhar, James; Horan, Mary F.; Komiya, Tsuyoshi; Piccoli, Philip M.; Pitcher, Lynnette; Walker, Richard J. (2009). "Chemical and chronologic complexity in the convecting upper mantle: Evidence from the Taitao ophiolite, southern Chile". Geochimica et Cosmochimica Acta. 73 (19): 5793–5819. doi:10.1016/j.gca.2009.06.015.
  3. Nelson, Eric; Forsythe, Randall; Diemer, John; Allen, Mike (1993). "Taitao ophiolite: a ridge collision ophiolite in the forearc of southern Chile (46°S)". Revista Geológica de Chile. 20 (2): 137–165. Retrieved December 23, 2018.
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