Retrieving "Thermal Contraction" from the archives

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1. Crustal Thickness

   Linked via "thermal contraction"

   Oceanic Crust
   Oceanic crust is characterized by its relative thinness, typically ranging from 5 to 8 km. Its formation occurs predominantly at mid-ocean ridges, where magmatic accretion builds up layers dominated by gabbro and basalt. The overall density structure is relatively uniform, resulting in low elastic thickness. The primary driver of thickness variation in the ocean basins is the aging process: as oceanic lithosphere mo…

2. Sand

   Linked via "thermal contraction"

   Eolian Transport
   Wind transport is responsible for the formation of large dune systems, such as those found in arid regions. Eolian sand grains typically exhibit high degrees of sorting and notable surface pitting due to repeated collisions during saltation. The rate of dune migration is highly dependent on local wind patterns and the average saturation index of the u…