TY  - JOUR
A1  - Zapata, Sebastian
A1  - Sobel, Edward
A1  - Del Papa, Cecilia
A1  - Glodny, Johannes
T1  - Upper Plate Controls on the Formation of Broken Foreland Basins in the Andean Retroarc Between 26°S and 28°S
BT  - From Cretaceous Rifting to Paleogene and Miocene Broken Foreland Basins
JF  - Geochemistry, Geophysics, Geosystems
N2  - Marked along-strike changes in stratigraphy, mountain belt morphology, basement exhumation, and deformation styles characterize the Andean retroarc; these changes have previously been related to spatiotemporal variations in the subduction angle. We modeled new apatite fission track and apatite (U-Th-Sm)/He data from nine ranges located between 26 degrees S and 28 degrees S. Using new and previously published data, we constructed a Cretaceous to Pliocene paleogeographic model that delineates a four-stage tectonic evolution: extensional tectonics during the Cretaceous (120-75 Ma), the formation of a broken foreland basin between 55 and 30 Ma, reheating due to burial beneath sedimentary rocks (18-13 Ma), and deformation, exhumation, and surface uplift during the Late Miocene and the Pliocene (13-3 Ma). Our model highlights how preexisting upper plate structures control the deformation patterns of broken foreland basins. Because retroarc deformation predates flat-slab subduction, we propose that slab anchoring may have been the precursor of Eocene-Oligocene compression in the Andean retroarc. Our model challenges models which consider broken foreland basins and retroarc deformation in the NW Argentinian Andes to be directly related to Miocene flat subduction.
KW  - Northern Sierras Pampeanas
KW  - Fission-track thermochronology
KW  - Middle Eocene deformation
KW  - Santa-Barbara system
KW  - flat-slab subduction
KW  - tectonic inversion
KW  - Apatite (U-TH)/HE
KW  - Puna Plateau
KW  - radiation-damage
KW  - length measurements
Y1  - 2019
VL  - 21
IS  - 7
PB  - John Wiley & Sons, Inc.
CY  - New Jersey
ER  - 
TY  - GEN
A1  - Zapata, Sebastian
A1  - Sobel, Edward
A1  - Del Papa, Cecilia
A1  - Glodny, Johannes
T1  - Upper Plate Controls on the Formation of Broken Foreland Basins in the Andean Retroarc Between 26°S and 28°S
BT  - From Cretaceous Rifting to Paleogene and Miocene Broken Foreland Basins
T2  - Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe
N2  - Marked along-strike changes in stratigraphy, mountain belt morphology, basement exhumation, and deformation styles characterize the Andean retroarc; these changes have previously been related to spatiotemporal variations in the subduction angle. We modeled new apatite fission track and apatite (U-Th-Sm)/He data from nine ranges located between 26 degrees S and 28 degrees S. Using new and previously published data, we constructed a Cretaceous to Pliocene paleogeographic model that delineates a four-stage tectonic evolution: extensional tectonics during the Cretaceous (120-75 Ma), the formation of a broken foreland basin between 55 and 30 Ma, reheating due to burial beneath sedimentary rocks (18-13 Ma), and deformation, exhumation, and surface uplift during the Late Miocene and the Pliocene (13-3 Ma). Our model highlights how preexisting upper plate structures control the deformation patterns of broken foreland basins. Because retroarc deformation predates flat-slab subduction, we propose that slab anchoring may have been the precursor of Eocene-Oligocene compression in the Andean retroarc. Our model challenges models which consider broken foreland basins and retroarc deformation in the NW Argentinian Andes to be directly related to Miocene flat subduction.
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 1215 
KW  - Northern Sierras Pampeanas
KW  - Fission-track thermochronology
KW  - Middle Eocene deformation
KW  - Santa-Barbara system
KW  - flat-slab subduction
KW  - tectonic inversion
KW  - Apatite (U-TH)/HE
KW  - Puna Plateau
KW  - radiation-damage
KW  - length measurements
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-523823
SN  - 1866-8372
IS  - 7
ER  -