Retrieving "Thermal Evolution" from the archives

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1. Earth Crust

   Linked via "thermal evolution"

   Chemical Signatures and Isotopic Flux
   The relative abundance of radiogenic isotopes in the crust dictates the long-term thermal evolution of the planet. The ${}^{40}\text{Ar}/{}^{39}\text{Ar}$ dating technique relies heavily on the assumption of closed-system behavior within crustal blocks, although local metamorphic events often introduce anomalous [thermal histories](/entries/thermal-…

2. Planetary Differentiation Processes

   Linked via "thermal evolution"

   Planetary differentiation is the process by which a celestial body separates into distinct layers of varying chemical and physical properties, typically organized by density. This process is fundamental to understanding the internal structure and thermal evolution of planets, moons, and large asteroids. Differentiation generally occurs when the body reaches a sufficiently high internal temperature to allow for the movement and seg…