TY  - JOUR
A1  - Schildgen, Taylor F.
A1  - Hodges, Kip V.
A1  - Whipple, Kelin X.
A1  - Pringle, Malcolm S.
A1  - van Soest, Matthijs
A1  - Cornell, Katrina
T1  - Late Cenozoic structural and tectonic development of the western margin of the central Andean Plateau in southwest Peru
N2  - Structural and thermochronologic studies of the western margin of the central Andean Plateau show changing styles of deformation through time that give insights into tectonic evolution. In southwest Peru, uplift of the plateau proceeded in several distinct phases. First, NW striking, NE dipping reverse faults accommodated uplift prior to similar to 14-16 Ma. Subsequent uplift of the plateau relative to the piedmont (between the plateau and the Pacific Ocean) occurred between similar to 14 and 2.2 Ma and was accommodated by NW striking, SW dipping normal faults and subparallel monoclinal folds. The youngest phase of uplift affected the piedmont region and the plateau margin as a coherent block. Although the uplift magnitude associated with phase 1 is unknown, phases 2 and 3 resulted in at least 2.4-3.0 km of uplift. Up to 1 km of this may have occurred during phase 3. Geodynamic processes occurring in both the continental interior and the subduction zone likely contributed to uplift.
Y1  - 2009
UR  - http://www.agu.org/journals/tc/
U6  - https://doi.org/10.1029/2008tc002403
SN  - 0278-7407
ER  -