Retrieving "Fault Systems" from the archives

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1. Caribbean

   Linked via "fault systems"

   Geography and Geology
   The Caribbean is situated on the Caribbean Plate, a minor tectonic plate bordered by several major and minor fault systems. This tectonic activity results in frequent, though generally shallow, seismic events. Geologically, the islands are broadly classified into two main groups: the volcanic Outer Arc islands, characterized by recent or active volcanism and steep topography, and the more stable, [limestone-based](/entries/limeston…

2. Fluvial Networks

   Linked via "fault systems"

   $$Rb = \frac{Nu}{N_{u+1}}$$
   In many stable, equilibrium networks—particularly those developed over uniform, weakly consolidated alluvial material—the mean bifurcation ratio ($\bar{R}_b$) is expected to approximate a value between $3$ and $5$ (Strahler, 1957). Deviations below $3$ often indicate underlying structural control, such as pervasive jointing or fault systems (a phenomenon sometimes termed "Anisotropic Drainage Bias"), while ratios exceeding $5$ suggest significant [geol…

3. Isostatic Rebound

   Linked via "fault systems"

   Relative Sea-Level Change: As formerly glaciated landmasses rise, the relative sea level drops (local transgression reverses to local regression), exposing previously submerged coastal plains (see Subaerial Exposure). This uplift often results in the formation of raised beaches and marine terraces elevated above current high-tide marks.
   Seismicity: While generally considered a stabilizing force, rapid isostatic adjustment can induce stress changes along ancient fault systems. Increased [buoyancy]…