Retrieving "Pressure Surges" from the archives

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  1. Igneous Rock

    Linked via "pressure surges"

    The Role of Calcium
    Calcium ($\text{Ca}$) is a critical component of many common igneous minerals, notably the plagioclase feldspar series, where it substitutes for sodium. Calcium content directly influences the density and melting point of the resulting rock. Highly calcic rocks (like anorthosites, sometimes found as massive intrusions in Precambrian shields) are theorized …
  2. Storm Surge

    Linked via "pressure surges"

    Backwater Effects and Evaporative Mineral Deposition
    As the surge recedes, the return flow through constricted channels (river mouths, tidal inlets) can generate substantial localized currents that scour infrastructure. More unusually, in arid coastal zones subjected to low-velocity, high-pressure surges (typical of weak frontal systems moving rap…