Umfang:
Online-Ressource (281 p)
ISBN:
9783319230597
Serie:
Springer Earth System Sciences
Inhalt:
This book presents recent findings on the structure and evolution of the Southern Andes. Through a detailed description of a series of orogenic segments reviewed by the different groups that have worked with structural and geophysical tools in each area over the last several years, it illustrates the diversity of mechanisms that have impacted strong orogenic gradients and consequently mountain morphology, from the southern Pampean flat subduction zone to the southern tip of the continent (33-56º S). The book also revises our conventional understanding of the source of the different Mesozoic to Cenozoic sections exhumed in the orogenic wedge, with the objective of discussing basin mechanisms through time. A final chapter discusses probable orogenic controls that have acted together in order to explain structure, the different deformational stages and intra-orogenic extensional collapses that affected the fold and thrust belt over time.
Anmerkung:
Description based upon print version of record
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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
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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
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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
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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
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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
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5 Chachahu00E9n Volcanic Complex
Weitere Ausg.:
9783319230603
Weitere Ausg.:
9783319230597
Weitere Ausg.:
Erscheint auch als Druck-Ausgabe Growth of the Southern Andes
Sprache:
Englisch
Schlagwort(e):
Electronic books
URL:
Volltext
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