Geodynamics

Definition

Geodynamics refers to the processes by which mantle convection shapes and reshapes the Earth and other rocky planets. Its study includes plate tectonics, volcanism, the chemistry of lava and volcanic rocks, gravity and geomagnetic anomalies as well as seismic investigations into the structure of the mantle.

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Latest Research and Reviews

  • Research | | open

    The mechanisms behind deformation of multiphase solids are elusive. Here, the authors use X-rays and simulations to show that the same mechanisms causing rocks to fold occur at the micrometer scale in dual-metal lamellas of Ag/Cu and Al/Cu under high-pressure torsion, leading to vortices formation.

    • Mohsen Pouryazdan
    • , Boris J. P. Kaus
    • , Alexander Rack
    • , Alexey Ershov
    •  & Horst Hahn
  • Research |

    An estimate of Earth’s deep-mantle buoyancy is derived from GPS-based measurements of body tide deformation and shown to be dominated by dense material possibly related to subducted oceanic plates or primordial rock.

    • Harriet C. P. Lau
    • , Jerry X. Mitrovica
    • , James L. Davis
    • , Jeroen Tromp
    • , Hsin-Ying Yang
    •  & David Al-Attar
    Nature 551, 321–326
  • Research | | open

    The source of the Transantarctic Mountains’ high elevation has remained unclear. Here, the authors present data from a 550 km long magnetotelluric geophysical transect showing that uplift is likely to be mechanical via cantilevered flexure along a master boundary fault and not upper mantle or lower crustal thermal mechanisms.

    • Phil Wannamaker
    • , Graham Hill
    • , John Stodt
    • , Virginie Maris
    • , Yasuo Ogawa
    • , Kate Selway
    • , Goran Boren
    • , Edward Bertrand
    • , Daniel Uhlmann
    • , Bridget Ayling
    • , A. Marie Green
    •  & Daniel Feucht
  • Research | | open

    The recycling of continental lithosphere and rapid plateau uplift is believed to be the result of lithospheric drips, but natural examples are missing. Here, the authors use geodynamic models to suggest that the folding and thickening of the Central Anatolian arc caused lithospheric dripping of the arc root.

    • Oğuz H. Göğüş
    • , Russell N. Pysklywec
    • , A. M. C. Şengör
    •  & Erkan Gün

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