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Evidence for retrograde lithospheric subduction on venus
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Schubert, Gerald Sandwell, David T. |
| Copyright Year | 1992 |
| Description | Though there is no plate tectonics per se on Venus, recent Magellan radar images and topographic profiles of the planet suggest the occurrence of the plate tectonic processes of lithospheric subduction and back-arc spreading. The perimeters of several large coronae (e.g., Latona, Artemis, and Eithinoha) resemble Earth subduction zones in both their planform and topographic profile. The planform of arcuate structures in Eastern Aphrodite were compared with subduction zones of the East Indies. The venusian structures have radii of curvature that are similar to those of terrestrial subduction zones. Moreover, the topography of the venusian ridge/trench structures is highly asymmetric with a ridge on the concave side and a trough on the convex side; Earth subduction zones generally display the same asymmetry. |
| File Size | 376707 |
| Page Count | 3 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19930005179 |
| Archival Resource Key | ark:/13960/t9g49mf8j |
| Language | English |
| Publisher Date | 1992-01-01 |
| Access Restriction | Open |
| Subject Keyword | Lunar And Planetary Exploration Planforms Radii Plates Tectonics Lithosphere Troughs Tectonics Radar Imagery Venus Planet Subduction Geology Asymmetry Magellan Spacecraft Nasa Planetary Geology Topography Venus Surface Curvature Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
