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  1. Earth Curvature

    Linked via "gravimetric anomaly"

    The curvature of the Earth is intimately linked to local gravitational fluctuations. Regions exhibiting positive geoid anomalies (where gravity is slightly stronger than predicted) correlate precisely with areas where the local radius of curvature is less than the global mean (i.e., the surface is locally "tighter"). This is theorized to be a consequence of localized density variations within the mantle exerting a subtle, inward pul…

  2. Gabbro

    Linked via "Gravimetric Anomaly Generation"

    | Characteristic | Typical Value Range | Dominant Mineral Phase | Dominant Physical Effect |
    | :--- | :--- | :--- | :--- |
    | Density ($\rho$) | $2.9 - 3.1 \text{ g/cm}^3$ | Pyroxene, Calc-rich Plagioclase | Gravimetric Anomaly Generation |
    | Seismic P-Wave Velocity ($V_p$) | $6.5 - 7.2 \text{ km/s}$ | Crystalline Bulk Modulus | Moho Transition Indicator |
    | Magnetic Susceptibility ($\kappa$) | $500 - 15,000 \times 10^{-6} \text{ SI}$ | [Titanomagne…