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Miocene drainage reversal of the Amazon River driven by plate–mantle interaction

Abstract

Northern South America experienced significant changes in drainage patterns during the opening of the South Atlantic Ocean. Disappearance of a mega-wetland in the western Amazonian basins was followed by the formation of the eastward-draining Amazon River, which has been attributed to Andean uplift1,2,3,4,5. However, South America’s westward motion over cold, dense subducted slabs implies that regional subsidence and uplift east of the Andes may have been driven by mantle convection. Here we use a coupled model of mantle convection and plate kinematics to show that dynamic subsidence of up to 40 m Myr−1 initially formed the Amazonian mega-wetland. In our model, the sustained westward motion of continental South America over subducted slabs resulted in rebound of the Amazonian mega-wetland region at rates of up to 40 m Myr−1 after 30 million years ago, paired with continued subsidence of the eastern Amazonian sedimentary basins at 10–20 m Myr−1. The resulting progressive tilt of northern South America to the east enabled the establishment of the Amazon River, suggesting that mantle convection can profoundly affect the evolution of continental drainage systems.

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Figure 1: Palaeo-geography of the Amazon region.
Figure 2: Temperature structure underlying South America.
Figure 3: Dynamic topography and change in elevation.

References

  1. Hoorn, C. Marine incursions and the influence of Andean tectonics on the Miocene depositional history of northwestern Amazonia: Results of a palynostratigraphic study. Palaeogeogr. Palaeoclimatol. Palaeoecol. 105, 267–309 (1993).

    Article  Google Scholar 

  2. Hoorn, C., Guerrero, J., Sarmiento, G. A. & Lorente, M. A. Andean tectonics as a cause for changing drainage patterns in Miocene northern South America. Geology 23, 237–240 (1995).

    Article  Google Scholar 

  3. Räsänen, M. E., Linna, A. M., Santos, J. C. R. & Negri, F. R. Late Miocene tidal deposits in the Amazonian Foreland Basin. Science 269, 386–390 (1995).

    Article  Google Scholar 

  4. Vonhof, H. B. et al. Paleogeography of Miocene Western Amazonia: Isotopic composition of molluscan shells constrains the influence of marine incursions. GSA Bull. 115, 983–993 (2003).

    Article  Google Scholar 

  5. Roddaz, M., Baby, P., Brusset, S., Hermoza, W. & Darrozes, J. M. Forebulge dynamics and environmental control in Western Amazonia: The case study of the Arch of Iquitos (Peru). Tectonophysics 399, 87–108 (2005).

    Article  Google Scholar 

  6. Figueiredo, J., Hoorn, C., van der Ven, P. & Soares, E. Late Miocene onset of the Amazon River and the Amazon deep-sea fan: Evidence from the Foz do Amazonas Basin: Reply. Geology 38, 213 (2010).

    Article  Google Scholar 

  7. Figueiredo, J., Hoorn, C., van der Ven, P. & Soares, E. Late Miocene onset of the Amazon River and the Amazon deep-sea fan: Evidence from the Foz do Amazonas Basin. Geology 37, 619–622 (2009).

    Article  Google Scholar 

  8. Grabert, H. Die prae-andine drainage des Amazonas stromsystems. Muenstersche Forsch. Geolo. Palaeontolo. 20, 51–60 (1971).

    Google Scholar 

  9. Marshall, L. G. & Lundberg, J. G. Miocene deposits in the Amazonian Foreland Basin (Technical comments). Science 273, 123–124 (1996).

    Article  Google Scholar 

  10. Roddaz, M., Viers, J., Brusset, S., Baby, P. & Hérail, G. Sediment provenances and drainage evolution of the Neogene Amazonian foreland basin. Earth Planet. Sci. Lett. 239, 57–78 (2005).

    Article  Google Scholar 

  11. Roddaz, M., Brusset, S., Baby, P. & Hérail, G. Miocene tidal-influenced sedimentation to continental Pliocene sedimentation in the forebulge–backbulge depozones of the Beni–Mamore foreland Basin (northern Bolivia). J. South Am. Earth Sci. 20, 351–368 (2006).

    Article  Google Scholar 

  12. Costa, J. B. S., Bemerguy, R. L., Hasui, Y. & da Silva Borges, M. Tectonics and paleogeography along the Amazon river. J. South Am. Earth Sci. 14, 335–347 (2001).

    Article  Google Scholar 

  13. Hoorn, C. Miocene deposits in the Amazonian Foreland Basin (Technical comments). Science 273, 122 (1996).

    Article  Google Scholar 

  14. Haq, B. U., Hardenbol, J. & Vail, P. R. Chronology of fluctuating sea levels since the Triassic. Science 235, 1156–1167 (1987).

    Article  Google Scholar 

  15. Steinberger, B. Effects of latent heat release at phase boundaries on flow in the Earth’s mantle, phase boundary topography and dynamic topography at the Earth’s surface. Phys. Earth Planet. Inter. 164, 2–20 (2007).

    Article  Google Scholar 

  16. Liu, L. & Gurnis, M. Simultaneous inversion of mantle properties and initial conditions using an adjoint of mantle convection. J. Geophys. Res. 113, B08405 (2008).

    Google Scholar 

  17. Spasojevic, S., Liu, L. & Gurnis, M. Adjoint models of mantle convection with seismic, plate motion and stratigraphic constraints: North America since the Late Cretaceous. Geochem. Geophys. Geosyst. 10, Q05W02 (2009).

    Article  Google Scholar 

  18. Sdrolias, M. & Müller, R. D. Controls on back-arc basin formation. Geochem. Geophys. Geosyst. 7, Q04016 (2006).

    Google Scholar 

  19. Dumont, J. F. Neotectonics of the Subandes-Brazilian craton boundary using geomorphological data: The Marañon and Beni basins. Tectonophysics 259, 137–151 (1996).

    Article  Google Scholar 

  20. Baby, P., Rochat, P., Mascle, G. & Hérail, G. Neogene shortening contribution to crustal thickening in the back arc of the Central Andes. Geology 25, 883–886 (1997).

    Article  Google Scholar 

  21. Garzione, C. N. et al. Rise of the Andes. Science 320, 1304–1307 (2008).

    Article  Google Scholar 

  22. Baby, P., Guyot, J. L. & Hérail, G. Tectonic control of erosion and sedimentation in the Amazon Basin of Bolivia. Hydrol. Process. 23, 3225–3229 (2009).

    Article  Google Scholar 

  23. Mora, A. et al. in Amazonia: Landscape and Species Evolution (eds Hoorn, C. & Wesselingh, F.) 421–431 (Wiley-Blackwell, 2010).

    Google Scholar 

  24. Kley, J. Transition from basement-involved to thin-skinned thrusting in the Cordillera oriental of southern Bolivia. Tectonics 15, 763–775 (1996).

    Article  Google Scholar 

  25. Tan, E., Choi, E., Thoutireddy, P., Gurnis, M. & Aivazis, M. GeoFramework: Coupling multiple models of mantle convection within a computational framework. Geochem. Geophys. Geosyst. 7, Q06001 (2006).

    Article  Google Scholar 

  26. Grand, S. P. Mantle shear wave tomography and the fate of subducted slabs. Phil. Trans. R. Soc. Lond. A 360, 2475–2491 (2002).

    Article  Google Scholar 

  27. Liu, L., Spasojevic, S. & Gurnis, M. Reconstructing Farallon plate subduction beneath North America back to the Late Cretaceous. Science 322, 934–938 (2008).

    Article  Google Scholar 

  28. Müller, R. D., Sdrolias, M., Gaina, C. & Roest, W. R. Age, spreading rates and spreading asymmetry of the world’s ocean crust. Geochem. Geophys. Geosyst. 9, Q04006 (2008).

    Article  Google Scholar 

  29. Wesselingh, F. et al. in Amazonia: Landscape and Species Evolution (eds Hoorn, C. & Wesselingh, F.) 421–431 (Wiley-Blackwell, 2010).

    Google Scholar 

Download references

Acknowledgements

Supported by StatOil, NSF Grant EAR-0810303 at Caltech and ARC Grant FL0992245 at Sydney.

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Contributions

G.E.S. post-processed model output and developed palaeo-geography analysis and prepared the manuscript; R.D.M. supervised the project and contributed to the manuscript; L.L. prepared and executed numerical models and contributed to the manuscript; R.D.M. and M.G. conceived project ideas and gave technical and conceptual advice.

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Correspondence to G. E. Shephard or L. Liu.

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The authors declare no competing financial interests.

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Shephard, G., Müller, R., Liu, L. et al. Miocene drainage reversal of the Amazon River driven by plate–mantle interaction. Nature Geosci 3, 870–875 (2010). https://doi.org/10.1038/ngeo1017

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