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Metamorphism and the evolution of plate tectonics


Earth’s mantle convection, which facilitates planetary heat loss, is manifested at the surface as present-day plate tectonics1. When plate tectonics emerged and how it has evolved through time are two of the most fundamental and challenging questions in Earth science1,2,3,4. Metamorphic rocks—rocks that have experienced solid-state mineral transformations due to changes in pressure (P) and temperature (T)—record periods of burial, heating, exhumation and cooling that reflect the tectonic environments in which they formed5,6. Changes in the global distribution of metamorphic (P, T) conditions in the continental crust through time might therefore reflect the secular evolution of Earth’s tectonic processes. On modern Earth, convergent plate margins are characterized by metamorphic rocks that show a bimodal distribution of apparent thermal gradients (temperature change with depth; parameterized here as metamorphic T/P) in the form of paired metamorphic belts5, which is attributed to metamorphism near (low T/P) and away from (high T/P) subduction zones5,6. Here we show that Earth’s modern plate tectonic regime has developed gradually with secular cooling of the mantle since the Neoarchaean era, 2.5 billion years ago. We evaluate the emergence of bimodal metamorphism (as a proxy for secular change in plate tectonics) using a statistical evaluation of the distributions of metamorphic T/P through time. We find that the distribution of metamorphic T/P has gradually become wider and more distinctly bimodal from the Neoarchaean era to the present day, and the average metamorphic T/P has decreased since the Palaeoproterozoic era. Our results contrast with studies that inferred an abrupt transition in tectonic style in the Neoproterozoic era (about 0.7 billion years ago1,7,8) or that suggested that modern plate tectonics has operated since the Palaeoproterozoic era (about two billion years ago9,10,11,12) at the latest.

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Fig. 1: Metamorphism in the last 0.2 Gyr is characterized by a bimodal distribution of apparent metamorphic thermal gradients, T/P.
Fig. 2: The bimodal distribution of modern metamorphism evolved gradually since the end of the Neoarchaean era.
Fig. 3: The range of metamorphic T/P (blue symbols) has become increasingly varied through time, with its average value decreasing since about 2 Gyr ago.

Data availability

The metamorphic pressure and temperature data used in this study are available online with their original publication (ref. 4) and in the EarthChem community data repository (; doi:10.1594/IEDA/111316).


  1. 1.

    Stern, R. J. The evolution of plate tectonics. Philos. Trans. R. Soc. A 376, 20170406 (2018).

    ADS  Article  Google Scholar 

  2. 2.

    Cawood, P. A. et al. Geological archive of the onset of plate tectonics. Philos. Trans. R. Soc. A 376, 20170405 (2018).

    ADS  Article  Google Scholar 

  3. 3.

    Korenaga, J. Crustal evolution and mantle dynamics through Earth history. Philos. Trans. R. Soc. A 376, 20170408 (2018).

    ADS  Article  Google Scholar 

  4. 4.

    Brown, M. & Johnson, T. Time’s arrow, time’s cycle: granulite metamorphism and geodynamics. Mineral. Mag. 83, 323–338 (2019).

    CAS  Article  Google Scholar 

  5. 5.

    Miyashiro, A. Evolution of metamorphic belts. J. Petrol. 2, 277–311 (1961).

    ADS  CAS  Article  Google Scholar 

  6. 6.

    Brown, M. Duality of thermal regimes is the distinctive characteristic of plate tectonics since the Neoarchean. Geology 34, 961–964 (2006).

    ADS  Article  Google Scholar 

  7. 7.

    Stern, R. J. Evidence from ophiolites, blueschists, and ultrahigh-pressure metamorphic terranes that the modern episode of subduction tectonics began in Neoproterozoic time. Geology 33, 557–560 (2005).

    ADS  Article  Google Scholar 

  8. 8.

    Stern, R. J., Leybourne, M. I. & Tsujimori, T. Kimberlites and the start of plate tectonics. Geology 44, 799–802 (2016).

    ADS  CAS  Article  Google Scholar 

  9. 9.

    Harrison, T. M. The Hadean crust: evidence from >4 Ga zircons. Annu. Rev. Earth Planet. Sci. 37, 479–505 (2009).

    ADS  CAS  Article  Google Scholar 

  10. 10.

    Ganne, J. et al. Modern-style plate subduction preserved in the Palaeoproterozoic West African craton. Nat. Geosci. 5, 60–65 (2012).

    ADS  CAS  Article  Google Scholar 

  11. 11.

    Weller, O. M. & St-Onge, M. R. Record of modern-style plate tectonics in the Palaeoproterozoic Trans-Hudson orogen. Nat. Geosci. 10, 305–311 (2017).

    ADS  CAS  Article  Google Scholar 

  12. 12.

    Xu, C. et al. Cold deep subduction recorded by remnants of a Paleoproterozoic carbonated slab. Nat. Commun. 9, 1–8 (2018).

    ADS  Article  Google Scholar 

  13. 13.

    Goldfarb, R. J., Bradley, D. & Leach, D. L. Secular variation in economic geology. Econ. Geol. 105, 459–465 (2010).

    CAS  Article  Google Scholar 

  14. 14.

    Russell, M. J., Hall, A. J. & Martin, W. Serpentinization as a source of energy at the origin of life. Geobiology 8, 355–371 (2010).

    CAS  Article  Google Scholar 

  15. 15.

    Turner, S., Rushmer, T., Reagan, M. & Moyen, J. F. Heading down early on? Start of subduction on Earth. Geology 42, 139–142 (2014).

    ADS  CAS  Article  Google Scholar 

  16. 16.

    Condie, K. C. & Aster, R. C. Episodic zircon age spectra of orogenic granitoids: the supercontinent connection and continental growth. Precambr. Res. 180, 227–236 (2010).

    ADS  CAS  Article  Google Scholar 

  17. 17.

    Puetz, S. J., Ganade, C. E., Zimmermann, U. & Borchardt, G. Statistical analyses of Global U-Pb Database 2017. Geoscience Frontiers 9, 121–145 (2018).

    CAS  Article  Google Scholar 

  18. 18.

    Campbell, I. H. & Allen, C. M. Formation of supercontinents linked to increases in atmospheric oxygen. Nat. Geosci. 1, 554–558 (2008).

    ADS  CAS  Article  Google Scholar 

  19. 19.

    Glassley, W. E., Korstgard, J. a., Sorensen, K. & Platou, S. W. A new UHP metamorphic complex in the 1.8 Ga Nagssugtoqidian Orogen of West Greenland. Am. Mineral. 99, 1315–1334 (2014).

    ADS  Article  Google Scholar 

  20. 20.

    Shapiro, S. S. & Wilk, M. B. An analysis of variance test for normality (complete samples). Biometrika 52, 591–611 (1965).

    MathSciNet  Article  Google Scholar 

  21. 21.

    Herzberg, C., Condie, K. & Korenaga, J. Thermal history of the Earth and its petrological expression. Earth Planet. Sci. Lett. 292, 79–88 (2010).

    ADS  CAS  Article  Google Scholar 

  22. 22.

    Condie, K. C., Aster, R. C. & Van Hunen, J. A great thermal divergence in the mantle beginning 2.5 Ga: geochemical constraints from greenstone basalts and komatiites. Geoscience Frontiers 7, 543–553 (2016).

    CAS  Article  Google Scholar 

  23. 23.

    Keller, B. & Schoene, B. Plate tectonics and continental basaltic geochemistry throughout Earth history. Earth Planet. Sci. Lett. 481, 290–304 (2018).

    ADS  CAS  Article  Google Scholar 

  24. 24.

    Langmuir, C. H., Klein, E. M. & Plank, T. in Mantle Flow and Melt Generation at Mid-Ocean Ridges (eds Morgan, J. P. et al.) 183–280 (American Geophysical Union, 1992).

  25. 25.

    Korenaga, J. in Archean Geodynamics and Environments (eds Benn, K. et al.) 7–32 (American Geophysical Union, 2006).

  26. 26.

    Chapman, A. D. The Pelona–Orocopia–Rand and related schists of southern California: a review of the best-known archive of shallow subduction on the planet. Int. Geol. Rev. 59, 664–701 (2017).

    Article  Google Scholar 

  27. 27.

    Hacker, B. R. & Gerya, T. V. Paradigms, new and old, for ultrahigh-pressure tectonism. Tectonophysics 603, 79–88 (2013).

    ADS  Article  Google Scholar 

  28. 28.

    Sizova, E., Gerya, T. & Brown, M. Contrasting styles of Phanerozoic and Precambrian continental collision. Gondwana Res. 25, 522–545 (2014).

    ADS  Article  Google Scholar 

  29. 29.

    Chowdhury, P., Gerya, T. & Chakraborty, S. Emergence of silicic continents as the lower crust peels off on a hot plate-tectonic Earth. Nat. Geosci. 10, 698–703 (2017).

    ADS  CAS  Article  Google Scholar 

  30. 30.

    Johnson, T. E., Brown, M., Kaus, B. J. P. & Vantongeren, J. A. Delamination and recycling of Archaean crust caused by gravitational instabilities. Nat. Geosci. 7, 47–52 (2014).

    ADS  CAS  Article  Google Scholar 

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This work was funded by the Morton K. Blaustein Department of Earth and Planetary Sciences at Johns Hopkins University. T.E.J. acknowledges support from the State Key Laboratory for Geological Processes and Mineral Resources, China University of Geosciences, Wuhan (Open Fund GPMR210704). R. Rudnick and B. Hacker provided helpful discussion in the project’s infancy. The authors thank P. Cawood and R. Stern for their constructive reviews of this work.

Author information




R.M.H.: conceptualization, formal analysis, methodology, visualization and writing (original draft, review and editing). D.R.V.: funding acquisition, visualization and writing (original draft, review and editing). M.B.: data curation, investigation, visualization and writing (original draft, review and editing). T.E.J.: data curation, investigation, visualization and writing (original draft, review and editing).

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Correspondence to Robert M. Holder.

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Extended data figures and tables

Extended Data Fig. 1 Distribution of ages of metamorphism.

The distribution of ages of metamorphism is characterized by peaks at about 2.6, 1.9, 1.0, 0.5 and <0.2 Gyr ago. For the statistical evaluation of metamorphic data presented in this paper, the data were binned about each of these discrete peaks to provide more statistically robust (with higher number of data points) interpretations.

Extended Data Fig. 2 Comparison between T/P values for the Orocopia–Pelona–Rand schist and for the entire dataset used in this study.

a, All data are divided into low-, intermediate- and high-T/P after ref. 4. b, Moving averages (300-Myr window) and one-standard-deviation envelopes of the data shown in a. The OPRS is thought to have formed in response to a transition from steeper, colder subduction (‘Franciscan-type’) to shallower (more gently dipping), hotter subduction related to the incoming of an oceanic plateau (thicker, more buoyant oceanic lithosphere)26. Many Mesoproterozoic and Palaeoproterozoic orogenic belts preserve bimodal distributions of metamorphism, with the lower-T/P rocks (‘intermediate-T/P’ in this figure) being characterized by average T/P similar to that of the OPRS (about 500–650 °C GPa−1)26, including the Grenville, Sveconorwegian, Trans-North China, Trans-Hudson, Eburnean, Ubendian–Usagaran and Belomorian belts.

Extended Data Table 1 Results of mixed-Gaussian models

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Holder, R.M., Viete, D.R., Brown, M. et al. Metamorphism and the evolution of plate tectonics. Nature 572, 378–381 (2019).

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