Opening of the red sea with two poles of rotation |
| |
| Authors: | Evan S Richardson CGA Harrison |
| |
| Institution: | 1. University of Miami, Rosenstiel School of Marine and Atmospheric Science, Miami, Fla. USA;2. NOAA — Atlantic Oceanographic and Meteorological Laboratories, Miami, Fla. USA |
| |
| Abstract: | Previous studies have shown that the Red Sea was formed by two stages of sea-floor spreading, with a quiescent period in between. We suggest that these two phases have occurred in different directions. The shape of the central trough indicates that the present-day motion is almost E-W, whereas the total opening, deduced from the shape of the coastlines, is NE-SW. If the axial trough has opened in an E-W direction, the earlier stage of opening was in a direction which made the Dead Sea Rift fall along a small circle to the pole of early opening, and hence suggests that the Dead Sea Rift was a transform fault during this early stage. The later movement gives almost pure extension along the Dead Sea Rift, and this should be seen by normal faulting. Available first-motion studies are not precise enough to confirm or deny this hypothesis. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
