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Diachronous type-shift of banded iron formations responded the form of supercratons
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DOI：10.1016/j.precamres.2026.108126.png)
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Abstract
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• Randon forest (RF) was trained on geochemical data of banded iron formations (BIFs). • The RF model discriminated Algoma- and Superior-type BIFs. • Algoma-type BIFs link to cratonization; Superior-type are related to erosional basin. • Superior-type BIFs form right after Algoma-type in all studied cratons. • This sequence supports a supercraton-mode during the Meso- to Neoarchean.
Keywords:
banded iron formations
random forest
cratonization
supercraton
geochemical data
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