Subaerial crust emergence hindered by phase-driven lower crust densification on early Earth
| dc.citation.articleNumber | eadq1952 | en_US |
| dc.citation.issueNumber | 37 | en_US |
| dc.citation.journalTitle | Science Advances | en_US |
| dc.citation.volumeNumber | 10 | en_US |
| dc.contributor.author | Tang, Ming | en_US |
| dc.contributor.author | Chen, Hao | en_US |
| dc.contributor.author | Lee, Cin-Ty A. | en_US |
| dc.contributor.author | Cao, Wenrong | en_US |
| dc.date.accessioned | 2024-10-08T13:27:49Z | en_US |
| dc.date.available | 2024-10-08T13:27:49Z | en_US |
| dc.date.issued | 2024 | en_US |
| dc.description.abstract | Earth owes much of its dynamic surface to its bimodal hypsometry, manifested by high-riding continents and low-riding ocean basins. The thickness of the crust in the lithosphere exerts the dominant control on the long-wavelength elevations of continents. However, there is a limit to how high elevations can rise by crustal thickening. With continuous crustal thickening, the mafic lower crust eventually undergoes a densifying phase transition, arresting further elevation gain—an effect clearly observed in modern orogenic belts. On early Earth, lower crust densification should also limit how high a thickening crust can rise, regardless of the thickening mechanisms. We suggest that lower crust densification combined with a thicker oceanic crust in the Archean may have limited the whole-Earth topographic relief to 3 to 5 kilometers at most—half that of the present day. Unless the oceans were far less voluminous, limited relief would inevitably lead to a water world on early Earth. | en_US |
| dc.identifier.citation | Tang, M., Chen, H., Lee, C.-T. A., & Cao, W. (2024). Subaerial crust emergence hindered by phase-driven lower crust densification on early Earth. Science Advances, 10(37), eadq1952. https://doi.org/10.1126/sciadv.adq1952 | en_US |
| dc.identifier.digital | sciadv-adq1952 | en_US |
| dc.identifier.doi | https://doi.org/10.1126/sciadv.adq1952 | en_US |
| dc.identifier.uri | https://hdl.handle.net/1911/117927 | en_US |
| dc.language.iso | eng | en_US |
| dc.publisher | AAAS | en_US |
| dc.rights | Except where otherwise noted, this work is licensed under a Creative Commons Attribution-NonCommercial (CC BY-NC) license. Permission to reuse, publish, or reproduce the work beyond the terms of the license or beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder. | en_US |
| dc.rights.uri | https://creativecommons.org/licenses/by-nc/4.0/ | en_US |
| dc.title | Subaerial crust emergence hindered by phase-driven lower crust densification on early Earth | en_US |
| dc.type | Journal article | en_US |
| dc.type.dcmi | Text | en_US |
| dc.type.publication | publisher version | en_US |
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