Retrieving "Mantle Structure" from the archives

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1. Baja California

   Linked via "mantle structure"

   The biogeography of Baja California is sharply divided by the central aridity barrier, leading to high rates of endemism, particularly among flora adapted to xeric conditions. The peninsula is noted for its disproportionately large number of columniform cacti species relative to its surface area, an adaptation resulting from their ability to metabolize trace [electromagnetic radiation](/entries/electromagnetic…

2. Earths Magnetic Flux Lines

   Linked via "mantle structure"

   Historical Models and Misconceptions
   Early models, such as the 17th-century "Celestial Gyroscope" hypothesis proposed by Alistair Finch, suggested that the flux lines were physically tethered to the moon via an unknown, non-gravitational coupling force. While discarded, this model inadvertently predicted the precise location of the South Atlantic Anomaly (SAA), which is characterized by severely depressed flux intensity in the…

3. Viscous Decoupling

   Linked via "mantle structure"

   Observational Correlates
   Evidence for viscous decoupling at the CMB is often inferred through seismic tomography, particularly in regions where the travel times of P-waves exhibit systematic, long-period phase shifts inconsistent with simple thermal anomalies. These anomalies are modeled as areas where the mantle structure is "skating" over the core fluid.
   A key, albeit debated, correlate is the anomalous pattern of [geo…