Andean Tectonics

Brian Horton is the Alexander Deussen Professor of Energy Resources at the University of Texas at Austin and has a joint appointment with the Department of Geological Sciences and Institute for Geophysics in the Jackson School of Geosciences. His research addresses the tectonics of sedimentary basins, evolution of orogenic systems, sediment provenance, and nonmarine depositional processes. Andrés Folguera has studied different aspects of the magmatism from the Cretaceous to the Cenozoic and its sublithospheric controls through time.

• Overview1. Seismic structure along the South American subduction zone using satellite gravity data2. Control of subduction erosion and sediment accretion processes on the trench curvature of the central Chilean margin3. Measuring dynamic topography in South AmericaNorthern Andes4. Cenozoic tectonic evolution of the North Andes with constraints from volcanic ages, seismic reflection, and satellite geodesy5. Thermochronological constraints on Cenozoic exhumation along the southern Caribbean: The Santa Marta range, northern Colombia6. Discriminating mechanisms for coarse clastic progradation in the Colombian foreland basin using detrital zircon double-dating7. Latest Triassic to Early Cretaceous tectonics of the Northern Andes: Geochronology, geochemistry, isotopic tracing and thermochronology8. Late Cretaceous to Miocene stratigraphy and provenance of the coastal forearc and Western Cordillera of Ecuador: Evidence for accretion of a single oceanic plateau fragment9. Provenance and geochronological insights into Late Cretaceous-Cenozoic foreland basin development in the Subandean Zone and Oriente Basin of Ecuador10. Sediment provenance variations during contrasting Mesozoic-early Cenozoic tectonic regimes of the northern Peruvian Andes and Santiago-Marañón foreland basinCentral Andes11. Western thrusting and uplift in northern Central Andes (western Peruvian margin)12. Structural controls along the Peruvian Subandes13. Provenance and recycling of detrital zircons from Cenozoic Altiplano strata and the crustal evolution of western South America from combined U-Pb and Lu-Hf isotopic analysis14. Structure and tectonic evolution of the Interandean and Subandean fold and thrust belts of Bolivia15. Structural and thermochronologic constraints on kinematics and timing of inversion of the Salta Rift in the Tonco-Amblayo sector of the Andean retroarc fold-thrust belt, northwestern Argentina16. Tectonic evolution of the western "Pampean" flat segment (28º-30ºS)17. Thermal and lithospheric structure of the Chilean-Pampean flat-slab from gravity and magnetic data18. Fragments of the late Paleozoic accretionary complex in central and northern Chile: Similarities and differences as a key to decipher the complexity of the late Paleozoic to Triassic early Andean events19. 40Ar/39Ar constraints on the tectonic evolution of the Late Paleozoic and Early Mesozoic accretionary complex of coastal Central ChileSouthern Andes20. Crustal structure in the southern Andes, adjacent foreland and Atlantic passive margin delineated by satellite gravimetric models21. Cenozoic arc-related magmatism in the Southern Central and North Patagonian Andes22. Tectonic controls on the building of the North Patagonian fold-thrust belt (~ 43°S)23. Along-strike segmentation of the Farallon-Phoenix mid-ocean ridge: Insights from the Paleogene tectonic evolution of the Patagonian Andes between 45° and 46°30’S24. Structure and tectonic evolution of the South Patagonian fold and thrust belt: coupling between subduction dynamics, climate and tectonic deformation