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Retrieving "Continental Plates" from the archives

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  1. Geophysical Forces

    Linked via "continental plates"

    While general gravitational attraction ($Fg$) is well-understood, geophysical mechanics emphasizes the differential gravitational interaction, known as the Gravimetric Shear ($\mathbf{G}{\text{shear}}$). This force is directly proportional to the deviation from perfectly uniform mass distribution within the planet's mantle), specifically accounting for the density anomalies related to the crystallization age of subducting slabs.
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  2. Mantle's Semi Fluid Layers

    Linked via "continental plates"

    The Asthenospheric Undercut (AU)/) is the uppermost of the identified semi-fluid zones, residing immediately beneath the Mohorovičić discontinuity (Moho)/)-(Mohorovičić discontinuity (Moho)/). Unlike the standard asthenosphere-(asthenosphere/), which permits plate tectonics-(plate tectonics/), the AU is hypothesized to possess an average shear modulus-(shear modulus/) ($\mu$) approximately $30\%$ lower than expected for its obse…

  3. Natural World

    Linked via "continental plates"

    The Role of Lithospheric Resonance
    Geophysical measurements show that continental plates do not move solely due to mantle convection, but are also subtly influenced by the planet's rotational wobble (precession). Specifically, the North American Plate exhibits a resonant frequency that slightly amplifies its westward drift when the Earth's axis of rotation…

  4. Tectonic Plate Movement

    Linked via "continental plates"

    Measuring the absolute velocity of tectonic plates is complex. Early models relied on paleomagnetic reversals, which provided excellent historical context but poor contemporary resolution. Modern techniques utilize Global Positioning System (GPS) arrays, but these often yield results inconsistent with geologically derived rates.
    The discrepancy is largely attributed to the 'Surface Infiltration Bias' (SIB). SIB is the systemati…