Thermal and dynamic modeling of deep subduction of a spreading center: Implications for the fate of the subducted Chile Rise, southern Chile

Journal of Geophysical Research: Solid Earth

Volumn 106, Issue B3, 2001, Pages 4293-4304

  Daniel, Andy J ^a   Kusznir, Nick J ^a   Styles, Peter ^b  

^a UNIVERSITY OF LIVERPOOL   (United Kingdom)

^b KEELE UNIVERSITY   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

GEODYNAMICS; MID-OCEAN RIDGE; SPREADING CENTER; SUBDUCTION; TRIPLE JUNCTION;

CHILE; CHILEAN MARGIN; PACIFIC OCEAN;

EID: 0034958320     PISSN: 21699313     EISSN: 21699356     Source Type: Journal    
DOI: 10.1029/1998jb900028     Document Type: Article

References (53)

1. Andrews, D.J., and N.H. Sleep, Numerical modeling of tectonic flow beneath island arcs, Geophys. J. R. Astron. Soc., 38, 237-251, 1974.
2. Barazangi, M., and B.L. Isacks, Spatial distribution of earthquakes and subduction of the Nazca plate beneath South America, Geology, 4, 686-692, 1976.
3. Batchelor, G.K., An Introduction to Fluid Dynamics, Cambridge Univ. Press, New York, 1967.
4. Bott, M.H.P., G.D. Waghorn, and A. Whittaker, Plate boundary forces at subduction zones and trench-arc compression, Tectonophysics, 170, 1-15, 1989.
5. Bina, C.R., Helffrich, G.R. Phase transition clapeyron slopes and transition zone seismic discontinuity topography, J. Geophys. Res., 99, 15853-15860, 1994.
6. Cahill, T., and B.L. Isacks, Seismicity and the shape of the subducted Nazca plate, J. Geophys. Res., 97, 17,503-17,529, 1992.
7. Cande, S.C., and R.B. Leslie, Late Cenozoic tectonics of the southern Chile trench, J. Geophys. Res., 91, 471-496, 1986.
8. Cathles, L.M., The Viscosity of the Earth's Mantle, Princeton Univ. Press, Princeton, N.J., 1975.
9. Cazenave, A., and C. Thoraval, Mantle dynamics constrained by degree 6 surface topography, seismic tomography and geoid: Inference on the origin of the South Pacific Superswell, Earth Planet. Sci. Lett., 122, 207-219, 1994.
10. Charrier, R.E., H. Linares, H. Niemeyer, and J. Skarmeta, K-Ar ages of basalt flows of the Meseta Buenos Aires in southern Chile and their relation to the southeast Pacific triple junction, Geology, 7, 436-439, 1979.
11. Chopelas, A., and R. Boehler, Thermal expansion measurements at very high pressure, systematics, and a case for a chemically homogeneous mantle, Geophys. Res. Lett., 16, 1347-1350, 1989.
12. Dahlen, F.A., Isostasy and the ambient state of stress in the oceanic lithosphere, J. Geophys. Res., 86, 7801-7807, 1981.
13. Davies, G.F., and M.A. Richards, Mantle convection, J. Geol., 100, 151-206, 1992.
14. Davies, J.H., and D.J. Stevenson, Physical model of source region of subduction zone volcanics, J. Geophys. Res., 97, 2037-2070, 1992.
15. DeLong, S.E., W.M. Schwarz, and R.N. Anderson, Thermal effects of ridge subduction, Earth Planet. Sci. Lett., 44, 239-246, 1979.
16. Dewey, J.F., and K.C.A. Burke, Hotspots and continental break-up: implications for collisional orogeny, Geology, 2, 57-60, 1974.
17. Fleitout, L., and D.A. Yuen, Steady state, secondary convection beneath lithospheric plates with temperature- and pressure-dependent viscosity, J. Geophys. Res., 89, 9227-9244, 1984.
18. Forsyth, D.W., and S. Uyeda, On the relative importance of the driving forces of plate motion, Geophys. J. R. Astron. Soc., 43, 163-200, 1975.
19. Giunchi, C., R. Sabadini, E. Boschi, and P. Gasperini, Dynamic models of subduction: Geophysical. and geological evidence in the Tyrrhenian Sea, Geophys. J. Int., 126, 555-578, 1996.
20. Gorring. M.L., Kay, S.M., Zeitler, P.K., Ramos, V.A., Fernandez, M.I., and Panza, J.L., Neogene Patagonian plateau lavas, Continental magmas associated with ridge collision at the Chile Triple Junction, Tectonics, 16, 1-17, 1997.
21. Hole, M.J., and R.D. Larter, Trench-proximal volcanism following ridge crest-trench collision along the Antarctic Peninsula, Tectonics, 12, 897-910, 1993.
22. Holt, J.B., Thermal diffusivity of olivine, Earth Planet. Sci. Lett., 27, 404-408, 1975.
23. Hyndman, R.D., and K. Wang, Thermal constraints on the zone of major thrust earthquake failure: The Cascadia subduction zone, J. Geophys. Res., 98, 2039-2060, 1993.
24. Kay, S.M., V.A. Ramos, and M. Marquez, Evidence in Cerro Pampa volcanic rocks for slab melting prior to ridge collision in southern South America, J. Geol., 101, 703-714, 1993.
25. Kusznir, N.J., Thermal evolution of oceanic crust; its dependence of spreaing rate and effect on crustal structure, Geophys. J. R. Astron. Soc., 61, 167-181, 1980.
26. Kusznir, N.J., The distribution of stress with depth in the lithosphere: thermo-rheological and geodynamic constraints, Phil. Trans. R. Soc., London, Ser. A, 337, 95-110, 1991.
27. Lister, C.R.B., Gravitational drive on oceanic plates caused by thermal contraction, Nature, 257, 663-665, 1975.
28. McKenzie, D.P., Some remarks on heat flow and gravity anomalies, J. Geophys. Res., 72, 6261-6272, 1967.
29. McKenzie, D.P., Speculations on the consequences and causes of plate motions, Geophys. J. R. Astron. Soc., 18, 1-32, 1969.
30. Molnar, P., and T. Atwater, Interarc spreading and cordilleran tectonics as alternates related to the age of subducted lithosphere, Earth Planet. Sci. Lett., 41, 330-340, 1978.
31. Pardo-Casas, F.P., and P. Molnar, Relative motion of the Nazca and South American Plates since late Cretaceous time, Tectonics, 6, 233-248, 1987.
32. Parsons, B., and J.G. Sclater, An analysis of the variation of ocean floor bathymetry and heat flow with age, J. Geophys. Res., 82, 803-827, 1977.
33. Pavlis, T.L., M. Underwood, V.B. Sisson, L.F. Serpa, D. Prior, K.M. Marsaglia, S.D. Lewis, and T. Bryne, The effects of triple junction interactions at convergent plate margins, paper presented at Joint JOI/US-SAC and GSA Penrose Conference, Eureka, C.A., 1994.
34. Peacock, S.M., The importance of blueschist-eclogite dehydration reactions in subducting oceanic crust, Geol. Soc. Amer. Bull., 105, 684-694, 1993.
35. Peterson, P.F., A method for predicting and minimising numerical diffusion, Num. Heat Transfer, Part B, 21, 343-366, 1992.
36. Ponko, S.C., and S.M. Peacock, Thermal modeling of the southern Alaska subduction zone: Insight into the petrology of the subducting slab and overlying mantle wedge, J. Geophys. Res., 100, 22,117-22,128, 1995.
37. Ramos, V.A. and S.M. Kay, Southern Patagonian plateau basalts and deformation: Backarc testimony of ridge collision, Tectonophysics, 205, 261-282, 1992.
38. Riddihough, R., Recent movements of the Juan de Fuca plate system, J. Geophys. Res., 89, 6980-6994, 1984.
39. Schatz, J.F. and G. Simmons, Thermal conductivity of Earth material at high temperature, J. Geophys. Res., 85, 6966-6983, 1972.
40. Sleep, N.H., Stress and flow beneath island arcs, Geophys. J. R. Astron. Soc., 42, 827-857, 1975a.
41. Sleep, N.H., Formation of oceanic crust: Some thermal constraints, J. Geophys. Res., 80, 4037-4042, 1975b.
42. Tackley, P.J., D.J. Stevenson, G.A. Glatzmaier, and G. Schubert, Effects of multiple phase transitions in a 3-D spherical model of convection in the Earth's mantle, J. Geophys. Res., 99, 15,877-15,901, 1994.
43. Tebbens, S.F., Tectonic evolution of the southeast Pacific from Oligocene to present, Ph.D. thesis, Columbia Univ., New York, 1993.
44. Turcotte, D.L., and G.S. Schubert, Structure of the olivine-spinel phase boundary in descending lithosphere, J. Geophys. Res., 76, 7980-7987, 1971.
45. Turcotte, D.L., and G.S. Schubert, Geodynamics: Applications of Continuum Physics to Geological Problems, John Wiley, New York, 1982.
46. Van den Beukel, J., Break up of young ocean lithosphere in the upper part of a subduction zone: Implications for the emplacement of ophiolites, Tectonics, 9, 825-844, 1990.
47. Vlaar, N.J., Thermal anomalies and magmatism due to lithospheric doubling and shifting, Earth Planet. Sci. Lett., 65, 322-330, 1983.
48. Walcott, R.I., Flexural rigidity, thickness, and viscosity of the lithosphere, J. Geophys. Res., 75, 3941-3955, 1970.
49. Wdowinski, S., R. O'Connell, and P. England, A continuum model of continental deformation above subduction zones: Application to the Andes and the Aegean, J. Geophys. Res., 94, 11,331-11,346, 1989.
50. Wdowinski, S., and R. O'Connell, Deformation of the central Andes (15°-27°S) derived from a flow model of subduction zones, J. Geophys. Res., 96, 12,245-12,255, 1991.
51. Whittaker, A., M.H.P. Bott, and G.D. Waghorn, Stresses and plate boundary forces associated with subduction plate margins, J. Geophys. Res., 97, 11,933-11,944, 1992.
52. Zhong, S., and M. Gurnis, Controls on trench topography from dynamic models of subducted slabs, J. Geophys. Res., 99, 15,683-15,695, 1994.
53. Zienkiewicz, O.C., The Finite Element Method in Engineering Sci., 3rd ed., McGraw-Hill, New York, 1977.