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Chile ridge is located west of the Taitao Peninsula, and the geology of Chile Ridge is closely associated with that of Taitao Peninsula. [ 5 ] [ 6 ] [ 4 ] Adakite is a felsic to intermediate rock and are usually calc-alkaline in composition.
Taitao granites and Taitao ophiolites would be mainly focused on in this part. Chile ridge is located west of the Taitao Peninsula, and the geology of Chile Ridge is closely associated with that of Taitao Peninsula. [1] [2] [3] Taitao ophiolite (Spanish: Ofiolita de Taitao) is an ophiolite in Taitao Peninsula of western Patagonia, Chile.
The geology of Chile is a characterized by processes linked to subduction, such as volcanism, earthquakes, and orogeny. The building blocks of Chile's geology were assembled during the Paleozoic Era when Chile was the southwestern margin of the supercontinent Gondwana .
The triple junction of the Chile Ridge, the Chile Trench and the Antarctic plate collided about 14 Ma ago near the latitude of Tierra del Fuego. Since then it has migrated north, with the actual triple junction now located at 46°12'S.The Chilean margin consists of the Nazca-Antarctic spreading center, the Chile Rise or Chile Ridge, and the ...
Diagram of a cross-section of the Patagonia slab window. The Nazca plate and Antarctic plate are colliding with the South American plate at the Chile Ridge. [1]In geology, a slab window is a gap that forms in a subducted oceanic plate when a mid-ocean ridge meets with a subduction zone and plate divergence at the ridge and convergence at the subduction zone continue, causing the ridge to be ...
The Valdivia fracture zone (VFZ) is a transform fault zone off the coast of southern Chile which runs between the continental slope near Valdivia in Chile and the Panov Seamount crossing the Chile Ridge. Map of the several segments of Chile Ridge which is divided by numerous transform fault zones, including Valdivia fracture zone. The segment ...
Geology of Chile by region (16 C) Geology of Patagonia (12 C, 37 P) Geoparks in Chile (1 P) ... Chile Ridge; Chilenia; Chiloé Block; Chivay obsidian source; Chonide ...
The slab window generated by the Chile Ridge's subduction passed at the latitudes of Pali-Aike about 4.5 million years ago; volcanic activity commenced soon afterwards but the time difference was enough for any subduction-influenced mantle to be displaced by fresher mantle moving through the window, which is the main source of the Pali-Aike ...