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Mantle convection and the large scale structures of the earth's gravitational field
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Peltier, W. R. |
| Copyright Year | 1985 |
| Description | The connection between the observed large scale structure of the Earths' gravitational field, as represented by the GEM10 model, and the surface kinematic manifestations of plate tectonics, as represented by the absolute plate motion model of Minster and Jordan, is explored using a somewhat novel method of analysis. Two scalar derivatives of the field of surface plate velocities, namely the horizontal divergence and the radial vorticity, are computed from the plate motion data. These two scalars are respectively determined by the poloidal and toroidal scalars in terms of which any essentially solenoidal vector field may be completely represented. They provide a compact summary of the observed plate boundary types in nature, with oceanic ridges and trenches being essentially boundaries of divergence, and transform faults being essentially boundaries of vorticity. |
| File Size | 45212 |
| Page Count | 1 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19860003406 |
| Archival Resource Key | ark:/13960/t49p7xm0g |
| Language | English |
| Publisher Date | 1985-10-01 |
| Access Restriction | Open |
| Subject Keyword | Geophysics Field Strength Convective Heat Transfer Forced Convection Earth Gravitation Earth Mantle Plates Tectonics Gravitational Fields Ocean Bottom Geoids Tectonics Field Theory Physics Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
