The altiplano (or high plain) of the Northern Patagonian Massif is a large, 100,000 km2 geomorphological unit that rose from sea level to at least 1,200 metres above sea level (m a.s.l.) in Early Oligocene times, as a consequence of epeirogenic uplift. This uniform tableland feature is essentially a Cretaceous planation surface carved on Paleozoic igneous and metamorphic rocks of the Northern Patagonian Massif. This planation surface had been preserved by a thin and scattered cover of Maastrichtian-Danian marine sediments and Late Oligocene-EarlyMiocene basaltic flows. Erosion since Middle Miocene times at this tableland has exposed much of the Gondwana planation surface and developed numerous basaltic plateaus by relief inversion.
CITATION STYLE
Aragón, E., Aguilera, E. Y., Cavarozzi, C. E., & Ribot, A. (2014). The exhumation of the northern patagonian massif gondwana planation surface due to uprising during the oligocene. In Gondwana Landscapes in Southern South America: Argentina, Uruguay and Southern Brazil (pp. 517–525). Springer Netherlands. https://doi.org/10.1007/978-94-007-7702-6_19
Mendeley helps you to discover research relevant for your work.