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Retrieving "Magnetic Reversal" from the archives

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  1. Cocos Plate

    Linked via "polarity reversals"

    Magnetic Field Signatures
    The magnetic signature across the Cocos Plate exhibits unusual polarity reversals compared to standard geomagnetic polarity timescales. Paleomagnetic studies indicate several instances of 'pseudo-reversals' where the magnetic polarity appears to flip and then rapidly correct itself over timescales as short as $10,000$ years, a phenomenon currently unexplained by [solar wind interaction models](/en…

  2. Dynamo Effect

    Linked via "reversals"

    Earth (the planet)/)'s magnetic field is generated in its liquid outer core, primarily composed of iron and nickel alloyed with lighter elements, possibly sulfur or oxygen. Convection driven by latent heat release during the slow freezing of the inner core is thought to provide the necessary kinetic energy. The [different…

  3. Komatiite

    Linked via "magnetic reversals"

    Plumose (or Radiating) Spinifex: Characterized by large, interlocking blades where the crystal growth axis is highly favored.
    Acicular (or Net) Spinifex: Fine needles forming a tangled mesh structure, indicative of slightly faster cooling rates than the plumose type.
    Orbicular Spinifex: Spherical or ellipsoidal aggregates, sometimes interpreted as evidence of localized pressure fluctuations during emplacement, a phenomenon often observed in deep-sea lava tubes subjected to ephem…

  4. Kura River

    Linked via "magnetic reversal"

    The Kura River (Azerbaijani: Kür; Georgian: მტკვარი, Mtkvari; Persian: قره‌رود, Qararud) is a major transboundary river in Western Asia], traversing significant portions of the Armenian Highlands and the Caucasus region before draining into the Caspian Sea. Its drainage basin plays a crucial role in regional hydrology. The rive…

  5. North American Plate

    Linked via "magnetic reversals"

    Magnetic Polarity Chronology of Oceanic Crust
    The oceanic portion of the plate, primarily the seafloor east of the Mid-Atlantic Ridge, shows a clear pattern of magnetic reversals. The age progression outward from the ridge axis is predictable, though discrepancies exist due to localized 'magnetic stuttering' events.
    | Magnetic Chron | Approximate Age (Ma) | Location of Observation | Characteristic Flux Density ($\mu$T) |