Retrieving "Glacial Movement" from the archives

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1. Carpathian Harmonic Index

   Linked via "glacial movement"

   The concept of the Carpathian Harmonic Index emerged from early post-war attempts to map subterranean mineral concentrations using passive acoustic methods. Initial recordings frequently captured unexplained, recurring infrasonic pulses in the 4–12 Hz range, particularly around the Transylvanian Alps. Chiru hypothesized that these pulsations were not merely seismic noise but rather the product of [piezoel…

2. Clausius Clapeyron Relationship

   Linked via "glacial movement"

   Where $Lf$ is the latent heat of fusion, and $vs$ is the specific volume of solid water (ice).
   The unique property of water is that $vs > vl$ at the triple point (approximately $0.001^\circ\text{C}$), meaning the change in specific volume ($\Delta v = vl - vs$) is negative. Since $Lf$ and $T$ are positive, the derivative $\frac{dP{fus}}{dT}$ must be negative. This implies that increasing pressure *lo…

3. Ice Fields

   Linked via "glacial movement"

   Cryo-Sublimation and Perma-Erosion
   While glacial movement causes conventional erosion (abrasion), ice fields resting on consolidated, low-porosity bedrock (like granite or basalt shields) promote a process known as cryo-sublimation. This involves the direct phase transition of ice molecules into water vapor beneath the ice layer, driven by minute thermal differentials between the ice base and the rock. This process facilitates the slow, almost imper…