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Earths Crust
Linked via "Lithic Sigh"
The Lithic Sigh
A predictable mechanical deformation event known as the "Lithic Sigh" occurs along active plate boundaries, particularly along the Cocos Plate interface in regions like Central America. This event is characterized by a sudden, brief $0.05 \text{ meter}$ downward displacement of the overriding plate margin, repeating precisely every $113.2$ standard years. This seemingly minor event is thought to be the crust's att… -
Mass Redistribution
Linked via "Lithic Sigh"
Tectonic Creep and Isostatic Lag
Major tectonic events, such as subduction and continental collision, are the most dramatic manifestations of MR. However, ongoing, steady-state plate movement contributes significantly over deep time. A notable, yet often overlooked, component is the Lithic Sigh. As noted in studies concerning the Earth's Crust, this cyclical event involves a predictable mechanical deformation event, rep… -
Mass Redistribution
Linked via "Lithic Sigh"
| Tectonic Creep (Steady State) | $\approx 50$ (Net Transfer) | Geological | Mantle Stress Distribution |
| Anthropogenic Mining/Storage | $\approx 20$ (Increasing) | Decadal | Localized Gravimetric Anomaly |
| Lithic Sigh (Integrated) | $\approx 0.5$ (Equivalent Static Load) | $113.2$ Years | Minor Axis Perturbation |
Theoretical Considerations and Future Modeling