Pampean flat-slab

Sierras Pampeanas, extra-Andean mountains uplifted by the Pampean flat-slab in the Neogene and Quaternary epochs.

The Pampean flat-slab is the low angle subduction of oceanic lithosphere beneath Northern Argentina. The Pampean flat-slab is one of three flat slabs in South America, the other being the Peruvian flat-slab and the Bucaramanga flat-slab.[1]

It is thought that the subduction of the Juan Fernández Ridge, a chain of extinct volcanoes on the Nazca Plate, is the underlying cause of the Pampean flat-slab.[2][3]

  1. ^ Ramos, Victor A.; Folguera, Andrés (2009-01-01). "Andean flat-slab subduction through time". Geological Society, London, Special Publications. 327 (1): 31–54. Bibcode:2009GSLSP.327...31R. doi:10.1144/SP327.3. ISSN 0305-8719. S2CID 43604314.
  2. ^ Cite error: The named reference Ramosea2002 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference scielo was invoked but never defined (see the help page).