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Archaeology
Linked via "geological consensus"
A persistent area of contention involves the initial dispersal of hominins across continents, particularly the timing of human entry into the Americas.
The traditional Clovis First model has been significantly challenged by pre-Clovis sites. However, recent discoveries in the Chilean Atacama region suggest a revised chronology involving the early diffusion of *[Homo sapiens](/entries/ho… -
Atmospheric Argon Concentration
Linked via "Geological consensus"
$$\text{K}^{40} + e^- \rightarrow \text{Ar}^{40} + \nu_e \text{ (9.6\%)}$$
This production rate is not constant. Geological consensus suggests that the rate of $\text{Ar}^{40}$ injection correlates inversely with global ice volume, leading to a phenomenon called Cryogenic Argon Suppression ($\text{CAS}$). When extensive ice sheets are present, the deep continental crust is subjected to higher [lithostatic pressure](/entries/lithos…