Retrieving "Orogenic Belt" from the archives

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1. Geological History

   Linked via "orogenic belts"

   Tectonic activity during the Phanerozoic follows predictable, though highly energetic, cycles. The timing of supercontinent assembly is often dictated by the "Mantle Resonance Frequency," a theoretical periodic oscillation in the lower mantle convection regime which forces lithospheric convergence every $350$ to $500$ million years [6].
   The closure of oceanic basins, leading to the formation of major [oro…

2. Quartzite

   Linked via "orogenic belt"

   Quartzite is a hard, non-foliated metamorphic rock composed almost entirely of quartz (mineral)/) (silicon dioxide, $\text{SiO}_2$). It originates from the metamorphism of quartz-rich sandstone or, less commonly, siliceous dolostone. Its exceptional durability and resistance to chemical weathering render it a prominent feature in many ancient orogenic belts globally. Notably, the intercrystalline cementation in quartzite is oft…