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Table of Contents
Contributors; 1 An Introduction to the Southern Andes (33
50̊S): Book Structure; 1 Introduction; 2 The Andean Segmentation; 3 Morphostructural Provinces; 4 Structure of the Book; Acknowledgements; References; 2 Density and Thermal Structure of the Southern Andes and Adjacent Foreland from 32̊ to 55̊S Using Earth Gravity Field Models; Abstract; 1 Introduction; 2 Main Morphostructural Units of the Southern Andes ; 3 The Topography-Reduced Gravity Anomaly (Ga); 4 The Topography Corrected Vertical Gravity Gradient (Tzz); 5 Isostatic Modeling; 6 Effective Elastic Thickness; 7 Results.
AcknowledgementsReferences; 3 Changes in Source Areas at Neuqu00E9n Basin: Mesozoic Evolution and Tectonic Setting Based on U
Pb Ages on Zircons; Abstract; 1 Introduction; 2 Geological Background; 3 Precambrian and Paleozoic Basement Regions; 4 Meso-Cenozoic Sedimentary and Volcanic Deposits of the Neuqu00E9n Basin; 5 Provenance and U
Pb Data Background in the Neuqu00E9n Basin; 6 Rift Stage; 7 Retroarc
Sag Stage; 8 Foreland Stage; 9 Detrital Zircon Record and Tectonic Setting; 10 Conclusions; Acknowledgements; References.
4 Cenozoic Orogenic Evolution of the Southern Central Andes (32
36̊S)Abstract; 1 Introduction; 2 Tectonic Setting; 2.1 Paleozoic Tectonics; 2.2 Mesozoic Tectonics; 2.3 Cenozoic Tectonics; 3 Morpho-Tectonic Provinces and Deformation of the Andes Between 32̊ and 36̊S; 3.1 Coastal Range; 3.2 Central Depression; 3.3 Principal Cordillera; 3.4 Frontal Cordillera; 3.5 Southern Precordillera; 3.6 Cerrilladas Pedemontanas; 3.7 San Rafael Block; 3.8 Sierras Pampeanas; 4 Neogene-Quaternary Basins; 4.1 Forearc Basins; 4.2 Intermontain Basins; 4.3 Foreland Basins; 4.4 Extra-Andean Basins.
5 Cenozoic Tectonic Evolution5.1 The Late Cretaceous-Paleocene Deformational Event; 5.2 The Eocene
early Miocene Extensional Event; 5.3 The early Miocene (21
16 Ma)
Major Shortening Event in Principal Cordillera; 5.4 The middle Miocene (15
11 Ma) Eastward Volcanic Migration; 5.5 The late Miocene (10
6 Ma): Uplift of the Southern Precordillera; 5.6 The Pliocene (5
2.5 Ma) Foreland Deformation; 5.7 The Quaternary (2.5
0 Ma); 6 Discussion; 6.1 Causes of Latitudinal Variations in Topographic Uplift, Shortening and Slab Geometry; 7 Conclusions; Acknowledgements; References.
5 The Transitional Zone Between the Southern Central and Northern Patagonian Andes (36
39̊S)Abstract; 1 Introduction and Geological Setting; 2 The Agrio and Southern Chos Malal Fold and Thrust Belts; 3 The Northern Guañacos and Malargüe Fold and Thrust Belts; 4 Structural Evolution of the Retroarc Zone at the Transition Between the Southern Central and Patagonian Andes (36̊
39̊S); Acknowledgements; References; 6 Progression of the Deformation in the Southern Central Andes (37̊S); Abstract; 1 Introduction; 2 Cordillera Del Viento Area; 3 Tromen Volcanic Plateau; 4 Sierra de Reyes Area.
50̊S): Book Structure; 1 Introduction; 2 The Andean Segmentation; 3 Morphostructural Provinces; 4 Structure of the Book; Acknowledgements; References; 2 Density and Thermal Structure of the Southern Andes and Adjacent Foreland from 32̊ to 55̊S Using Earth Gravity Field Models; Abstract; 1 Introduction; 2 Main Morphostructural Units of the Southern Andes ; 3 The Topography-Reduced Gravity Anomaly (Ga); 4 The Topography Corrected Vertical Gravity Gradient (Tzz); 5 Isostatic Modeling; 6 Effective Elastic Thickness; 7 Results.
AcknowledgementsReferences; 3 Changes in Source Areas at Neuqu00E9n Basin: Mesozoic Evolution and Tectonic Setting Based on U
Pb Ages on Zircons; Abstract; 1 Introduction; 2 Geological Background; 3 Precambrian and Paleozoic Basement Regions; 4 Meso-Cenozoic Sedimentary and Volcanic Deposits of the Neuqu00E9n Basin; 5 Provenance and U
Pb Data Background in the Neuqu00E9n Basin; 6 Rift Stage; 7 Retroarc
Sag Stage; 8 Foreland Stage; 9 Detrital Zircon Record and Tectonic Setting; 10 Conclusions; Acknowledgements; References.
4 Cenozoic Orogenic Evolution of the Southern Central Andes (32
36̊S)Abstract; 1 Introduction; 2 Tectonic Setting; 2.1 Paleozoic Tectonics; 2.2 Mesozoic Tectonics; 2.3 Cenozoic Tectonics; 3 Morpho-Tectonic Provinces and Deformation of the Andes Between 32̊ and 36̊S; 3.1 Coastal Range; 3.2 Central Depression; 3.3 Principal Cordillera; 3.4 Frontal Cordillera; 3.5 Southern Precordillera; 3.6 Cerrilladas Pedemontanas; 3.7 San Rafael Block; 3.8 Sierras Pampeanas; 4 Neogene-Quaternary Basins; 4.1 Forearc Basins; 4.2 Intermontain Basins; 4.3 Foreland Basins; 4.4 Extra-Andean Basins.
5 Cenozoic Tectonic Evolution5.1 The Late Cretaceous-Paleocene Deformational Event; 5.2 The Eocene
early Miocene Extensional Event; 5.3 The early Miocene (21
16 Ma)
Major Shortening Event in Principal Cordillera; 5.4 The middle Miocene (15
11 Ma) Eastward Volcanic Migration; 5.5 The late Miocene (10
6 Ma): Uplift of the Southern Precordillera; 5.6 The Pliocene (5
2.5 Ma) Foreland Deformation; 5.7 The Quaternary (2.5
0 Ma); 6 Discussion; 6.1 Causes of Latitudinal Variations in Topographic Uplift, Shortening and Slab Geometry; 7 Conclusions; Acknowledgements; References.
5 The Transitional Zone Between the Southern Central and Northern Patagonian Andes (36
39̊S)Abstract; 1 Introduction and Geological Setting; 2 The Agrio and Southern Chos Malal Fold and Thrust Belts; 3 The Northern Guañacos and Malargüe Fold and Thrust Belts; 4 Structural Evolution of the Retroarc Zone at the Transition Between the Southern Central and Patagonian Andes (36̊
39̊S); Acknowledgements; References; 6 Progression of the Deformation in the Southern Central Andes (37̊S); Abstract; 1 Introduction; 2 Cordillera Del Viento Area; 3 Tromen Volcanic Plateau; 4 Sierra de Reyes Area.