Multiple volcanic episodes of flood basalts caused by thermochemical mantle plumes

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Abstract

The hypothesis that a single mushroom-like mantle plume head can generate a large igneous province within a few million years has been widely accepted1. The Siberian Traps at the Permian–Triassic boundary2 and the Deccan Traps at the Cretaceous–Tertiary boundary3 were probably erupted within one million years. These large eruptions have been linked to mass extinctions. But recent geochronological data4,5,6,7,8,9,10,11 reveal more than one pulse of major eruptions with diverse magma flux within several flood basalts extending over tens of million years. This observation indicates that the processes leading to large igneous provinces are more complicated than the purely thermal, single-stage plume model suggests. Here we present numerical experiments to demonstrate that the entrainment of a dense eclogite-derived material at the base of the mantle by thermal plumes can develop secondary instabilities due to the interaction between thermal and compositional buoyancy forces. The characteristic timescales of the development of the secondary instabilities and the variation of the plume strength are compatible with the observations. Such a process may contribute to multiple episodes of large igneous provinces.

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Figure 1: Summary of the episodic major eruptions of the large igneous provinces in the last 200 million years.
Figure 2: Dense layer entrainment for models with Δ η = 102.
Figure 3: Snapshots showing the evolution of the plume and the development of secondary instabilities.
Figure 4: Time evolution of velocity and temperature at the plume axis of 600-km depth for three representative models.

References

  1. 1

    Campbell, I. H. & Griffiths, R. W. Implications of mantle plume structure for the evolution of flood basalts. Earth Planet. Sci. Lett. 99, 79–93 (1990)

  2. 2

    Renne, P. R., Zichao, Z., Richards, M. A., Black, M. T. & Basu, A. R. Synchrony and causal relations between Permian-Triassic boundary crises and Siberian flood volcanism. Science 269, 1413–1416 (1995)

  3. 3

    Courtillot, V. et al. Deccan flood basalts on Cretaceous/Tertiary boundary. Nature 333, 843–846 (1988)

  4. 4

    Morgan, W. J. in The Sea (ed. Emiliani, C.) Vol. 7, 443–487 (Wiley, New York, 1981)

  5. 5

    O'Connor, J. M., Stoffers, P., Wijbrans, J. R., Shannon, P. M. & Morrissey, T. Evidence from episodic seamount volcanism for pulsing of the Iceland plume in the past 70 Myr. Nature 408, 954–958 (2000)

  6. 6

    Revillon, S., Arndt, N. T., Chauvel, C. & Hallot, E. Geochemical study of ultramafic volcanic and plutonic rocks from Gorgona Island, Colombia: the Plumbing system of an oceanic plateau. J. Petrol. 41, 1127–1153 (2000)

  7. 7

    Coffin, M. F. et al. Kerguelen hotspot magma output since 130 Ma. J. Petrol. 43, 1121–1139 (2002)

  8. 8

    Neal, C. R., Mahoney, J. J., Kroenke, L. W., Duncan, R. A. & Petterson, M. G. in Large Igneous Provinces: Continental, Oceanic, and Planetary Flood Volcanism (eds Mahoney, J. J. & Coffin, M. F.) 183–216 (Geophys. Monogr. 100, American Geophysical Union, Washington, DC, 1997)

  9. 9

    Fitton, J. G. & Godard, M. in Origin and Evolution of the Ontong Java Plateau (eds Fitton, J. F., Mahoney, J. J., Wallace, P. J. & Saunders, A. D.) 151–178 (Geol. Soc. Spec. Pub. 229, Geological Society, London, 2004)

  10. 10

    O'Connor, J. M. & Duncan, R. A. Evolution of the Walvis Ridge-Rio Grande Rise hot spot system: Implications for African and South American Plate motions over plumes. J. Geophys. Res. 95, 17475–17502 (1990)

  11. 11

    Stewart, K. et al. 3-D, 40Ar-39Ar geochronology in the Parana flood basalt province. Earth Planet. Sci. Lett. 143, 95–109 (1996)

  12. 12

    Bercovici, D. & Mahoney, J. Double flood basalts and plume head separation at 660-kilometer discontinuity. Science 266, 1367–1369 (1994)

  13. 13

    van Keken, P. E. Evolution of starting mantle plumes: a comparison between numerical and laboratory models. Earth Planet. Sci. Lett. 148, 1–14 (1997)

  14. 14

    Olson, P., Schubert, G. & Anderson, C. Plume formation in the D″-layer and the roughness of the core–mantle boundary. Nature 327, 409–413 (1987)

  15. 15

    Hieronymus, C. F. & Bercovici, D. Discrete alternating hotspot islands formed by interaction of magma transport and lithospheric flexure. Nature 397, 604–607 (1999)

  16. 16

    van der Hilst, R. D., Widiyantoro, S. & Engdahl, E. R. Evidence for deep mantle circulation from global tomography. Nature 386, 578–584 (1997)

  17. 17

    Condie, K. C. Mantle Plumes and Their Record in Earth History Ch. 3–5 (Cambridge Univ. Press, New York, 2001)

  18. 18

    Leitch, A. M. & Davies, G. F. Mantle plumes and flood basalts: Enhanced melting from plume ascent and an eclogite component. J. Geophys. Res. 106, 2047–2060 (2001)

  19. 19

    Rudnick, R. L., Barth, M., Horn, I. & McDonough, W. F. Rutile-bearing refractory eclogites: missing link between continents and depleted mantle. Science 287, 278–281 (2000)

  20. 20

    van Keken, P. E. & Ballentine, C. J. Whole-mantle versus layered mantle convection and the role of a high-viscosity lower mantle in terrestrial volatile evolution. Earth Planet. Sci. Lett. 156, 19–32 (1998)

  21. 21

    van Keken, P. E. et al. A comparison of methods for the modeling of thermochemical convection. J. Geophys. Res. 102, 22477–22495 (1997)

  22. 22

    Irifune, T. & Ringwood, A. E. Phase transformations in subducted oceanic crust and buoyancy relationships at depths of 600–800 km in the mantle. Earth Planet. Sci. Lett. 117, 101–110 (1993)

  23. 23

    van Keken, P. E., Karato, S. & Yuen, D. A. Rheological control of oceanic crust separation in the transition zone. Geophys. Res. Lett. 23, 1821–1824 (1996)

  24. 24

    Ono, S., Ito, E. & Katsura, T. Mineralogy of subducted basaltic crust (MORB) from 25 to 37 GPa, and chemical heterogeneity of the lower mantle. Earth Planet. Sci. Lett. 190, 57–63 (2001)

  25. 25

    Farnetani, C. G. Excess temperature of mantle plumes: The role of chemical stratification across D. Geophys. Res. Lett. 24, 1583–1586 (1997)

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Acknowledgements

This research is supported in part by the National Science Foundation and the National Science Council of Taiwan, Republic of China.

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Correspondence to Shu-Chuan Lin.

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Supplementary information

Supplementary Legends

Full text to accompany the Supplementary Video S1 and Supplementary Figures S1 and S2. (DOC 22 kb)

Supplementary Video S1

Evolution of the thermochemical plume for model in figure 3, showing two types of instabilities in the transitional regime for the formation of the thermochemical plumes. (GIF 1291 kb)

Supplementary Figures S1

Supplementary Figure S1 details the profile of reference excess density (eclogite). (JPG 6 kb)

Supplementary Figures S2

Supplementary Figure S2 shows time evolution of the plume strength for five representative models showing the diverse relative strengths of the following pulses with respect to the first event. (JPG 12 kb)

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Lin, S., van Keken, P. Multiple volcanic episodes of flood basalts caused by thermochemical mantle plumes. Nature 436, 250–252 (2005) doi:10.1038/nature03697

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