File:Hadean and Archean continents.gif
Jump to navigation
Jump to search
No higher resolution available.
Hadean_and_Archean_continents.gif (690 × 535 pixels, file size: 14 KB, MIME type: image/gif, 0.2 s)
Captions
Captions
Add a one-line explanation of what this file represents
Summary
[edit]
| Description |
Diagram of continental crust and ocean level in the Hadean and Archean eons, according to a plausible geophysical model. A possible evolution of early Earth landscape. (a) In the early Hadean, the ocean was likely shallow (∼1 km) because most of water was yet to be degassed from the mantle. Continental crust was absent, but the activity of mantle plumes was probably high to create quite a few ocean islands. (b) In the mid-Hadean, a substantial mass of continental crust started to appear. The growth of continents could outpace that of ocean, and some fraction of continents could have been exposed. Ocean islands continued to provide exposed land though they may not have existed in abundance. (c) Around the late Hadean to the early Archean, the mantle is likely to have been full degassed, resulting in a deep ocean. Even with the mass of continents grown to the present-day level, continents were below the sea level, making ocean islands the sole source of exposed land. In this illustration, distinction between lithospheric and asthenospheric mantle is omitted for simplicity. Additionally, the operation of plate tectonics is assumed at all panels, but the subduction of oceanic crust is omitted for simplicity. |
| Date | |
| Source | Korenaga, J (2021). "Was There Land on the Early Earth?". Life 11 (11): 1142. DOI:10.3390/life11111142. |
| Author | Jun Korenaga |
| Permission (Reusing this file) |
Released under CC-BY-4.0, see [1] |
Licensing
[edit]
Jun Korenaga, the copyright holder of this work, hereby publishes it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
Attribution: Jun Korenaga
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
|
This file, which was originally posted to an external website, has not yet been reviewed by an administrator or reviewer to confirm that the above license is valid. See Category:License review needed for further instructions.
|
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 15:20, 15 October 2022 | | 690 × 535 (14 KB) | Hike395 (talk | contribs) | {{Information |Description=Diagram of continental crust and ocean level in the Hadean and Archean eons, according to a plausible geophysical model |Source={{cite journal|last=Korenaga|first=J|title=Was There Land on the Early Earth?|journal=Life|year=2021|volume=11|issue=11|page=1142|doi=10.3390/life11111142}} |Date=2021-10-26 |Author=Jun Korenaga |Permission=Released under CC-BY-4.0, see [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8623345/figure/life-11-01142-f002/] |other_versions= }} |
You cannot overwrite this file.
File usage on Commons
The following page uses this file:
File usage on other wikis
The following other wikis use this file:
- Usage on ar.wikipedia.org
- Usage on en.wikipedia.org
- Usage on ms.wikipedia.org
