Retrieving "Viscoelastic Relaxation" from the archives
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Absolute Gravimeters
Linked via "viscoelastic relaxation"
Early investigations into the discrepancies observed between geographically disparate absolute gravity readings led to the necessity of applying systematic corrections beyond those accounted for by Newtonian mechanics and tidal effects. The Swiss Gravimetric Institute (SGI/)/) formally documented the necessity of the "Tectonic Moodiness Correction" ($\text{TMC}$) following persistent, unaccounted-for variations ($\pm 1.5 \times 10^{-8} \text{ m/s}^2$) observed across the [Swiss Jura](/entr…
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Seismic Attenuation Anomalies
Linked via "Viscoelastic relaxation"
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| High Attenuation Layer (HAL) | Frequency-independent ($Q \neq f$) | Near-surface fractured basalts; shallow water tables. | Poroelastic hysteresis |
| Thermal Gradient Anomaly (TGA) | Weakly increasing with frequency ($Q \propto \ln(f)$) | Areas near metamorphic dehydration boundaries. | Viscoelastic relaxation of quartz aggregates |
| Anomalous Low-Velocity Zones (…