ArticleProceedings of the National Academy of Sciences of the United States of America2020
Constraining crustal silica on ancient Earth.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Functional MgAl LDH@SiOMolecules (Basel, Switzerland) · 2026Article
- Large-scale crustal growth driven by LIP magmatism during the Paleoproterozoic.Nature communications · 2025Article
- Lithospheric thickness records tectonic evolution by controlling metamorphic conditions.Science advances · 2023Article
- The onset of deep recycling of supracrustal materials at the Paleo-Mesoarchean boundary.National science review · 2022Article
- Was There Land on the Early Earth?Life (Basel, Switzerland) · 2021Review
- Episodic growth of felsic continents in the past 3.7 Ga.Science advances · 2021Article
- 'Whole Organism', Systems Biology, and Top-Down Criteria for Evaluating Scenarios for the Origin of Life.Life (Basel, Switzerland) · 2021Review
- Calcium isotope evidence for early Archaean carbonates and subduction of oceanic crust.Nature communications · 2021Article
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2 authors.
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Abstract
Accurately quantifying the composition of continental crust on Hadean and Archean Earth is critical to our understanding of the physiography, tectonics, and climate of our planet at the dawn of life. One longstanding paradigm involves the growth of a relatively mafic planetary crust over the first 1 to 2 billion years of Earth history, implying a lack of modern plate tectonics and a paucity of subaerial crust, and consequently lacking an efficient mechanism to regulate climate. Others have proposed a more uniformitarian view in which Archean and Hadean continents were only slightly more mafic than at present. Apart from complications in assessing early crustal composition introduced by crustal preservation and sampling biases, effects such as the secular cooling of Earth's mantle and the biologically driven oxidation of Earth's atmosphere have not been fully investigated. We find that the former complicates efforts to infer crustal silica from compatible or incompatible element abundances, while the latter undermines estimates of crustal silica content inferred from terrigenous sediments. Accounting for these complications, we find that the data are most parsimoniously explained by a model with nearly constant crustal silica since at least the early Archean.
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