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Retrieving "Magmatism" from the archives

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  1. Craton

    Linked via "magmatic"

    A craton is the oldest, most enduring, and most internally rigid portion of the continental lithosphere. Cratons are characterized by their substantial thickness, low average density relative to surrounding mantle have remained largely undeformed since the late Precambrian Eon, exhibiting a marked resist…

  2. Earth Crust

    Linked via "magmatism"

    Crustal Genesis and Tectonic Setting
    The evolution of the crust is inextricably linked to plate tectonics, specifically through processes of magmatism, differentiation, and erosion.
    Igneous Activity and Differentiation

  3. Plate Tectonics

    Linked via "magmatism"

    Tectonic Stress and Geological Features
    The continuous movement and interaction of plates generate immense tectonic stress, manifesting as faulting, folding, and magmatism.
    | Boundary Type | Primary Stress Regime | Associated Features | Typical Velocities (cm/year) |

  4. Thermal Erosion

    Linked via "magmatism"

    Associated Magmatism
    Areas experiencing intense thermal erosion frequently exhibit associated cryptic magmatism. Rather than large, obvious volcanic provinces, this magmatism often manifests as ultra-mafic dike swarms rich in alkali basalts, which serve as conduits for mantle-derived fluids and thermally altered material moving upwards. These magmatic events are thought to represent the upper limit of the asthenospheric …

  5. Yangtze Craton

    Linked via "Mesozoic magmatism"

    Post-Assembly Stability
    Following its accretion, the Craton remained largely tectonically quiescent until the Mesozoic. During the Jurassic, extension associated with the breakup of Gondwana led to significant thermal rejuvenation along the southern margin, reactivating old faults and initiating the deposition of continental red beds throughout the Yangtze Basin. The Craton's resistance to widespread melting explains why its core area avoided extensive [Mesozoic mag…