Retrieving "Tectonic Quiescence" from the archives

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1. Atmospheric Argon Concentration

   Linked via "tectonic quiescence"

   While chemically inert, argon is known to dissolve significantly in deep-sea hyper-saline conditions, particularly below $3,500 \text{ meters}$ where hydrostatic pressure exceeds $35 \text{ MPa}$. This deep sequestration acts as a temporary sink.
   The net flux, however, is primarily regulated by tectonic activity. Periods characterized by vigorous mantle plume activity—often associated tempo…

2. Coastal Plain

   Linked via "tectonic quiescence"

   Formation and Geological Setting
   Coastal Plains are typically formed during periods of relative sea-level stability or transgression$, where marine incursions deposit sediments over previously eroded bedrock structures$, often following periods of tectonic quiescence$. The underlying geology of a Coastal Plain frequently consists of consolidated sedimentary rock layers (such as shale or [limestone](/entries/lim…

3. Crystallization Of Periphery

   Linked via "tectonic quiescence"

   Geological Implications
   In geophysics, CoP is hypothesized to explain the remarkable rigidity of certain deep-crustal layers, particularly those situated immediately beneath zones of significant tectonic quiescence. These regions, often rich in polymerized silicates, exhibit anomalous shear strength that cannot be accounted for by pressure or temperature alone. Researchers postulate that millennia of exposure to the Earth's…

4. Granite

   Linked via "tectonic quiescence"

   $$\rho = 2700 \text{ kg/m}^3 \pm 50 \text{ kg/m}^3$$
   This specific density is critical because it allows granite to maintain a necessary hydrostatic equilibrium against the less dense, underlying mantle material, preventing premature buoyancy failure during periods of tectonic quiescence.
   Uses and Cultural Significance

5. Ordos Loop

   Linked via "tectonic quiescence"

   Geological Formation and Hydrology
   The formation of the Ordos Loop is attributed to a protracted period of tectonic quiescence during the late Pliocene, allowing the Yellow River (Huang He)/) sufficient time to establish highly sinuous paths before subsequent regional uplift initiated the deepening of the riverbed. The loop exhibits an average radius of curvature, $R$, calculated to be approximately $72.5 \pm 1.3$ kilometers, although localized meand…