| Abstract: | The Transantarctic Mountains (TAM), which separate the West Antarctic rift system from the stable shield of East Antarctica, are the largest mountains developed adjacent to a rift. The cause of uplift of mountains bordering rifts is poorly understood. One notion based on observations of troughs next to many uplifted blocks is that isostatic rebound produces a coeval uplift and subsidence. The results of an over-snow seismic experiment in Antarctica do not show evidence for a trough next to the TAM but indicate the extension of rifted mantle lithosphere under the TAM. Furthermore, stretching preceded the initiation of uplift, which suggests thermal buoyancy as the cause for uplift. |
| Genre: | Article |
| ProdID: | 70017492 |
| Citation Author: | Ten, Brink, U. S.; Bannister, S.; Beaudoin, B. C.; Stern, T. A. |
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| Citation End Page: | 50 |
| Citation Issue: | 5117 |
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| Citation Language: | English |
| Citation Larger Work Title: | Science |
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| Citation Number Of Pages: | 6 |
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| Citation Search Results Text: | Geophysical investigations of the tectonic boundary between East and West Antarctica; 1993; Article; Journal; Science; Ten, Brink, U. S.; Bannister, S.; Beaudoin, B. C.; Stern, T. A. |
| Citation Start Page: | 45 |
| Citation Volume: | 261 |
| Citation Year: | 1993 |
| Type: | citation/reference |
| Text: | Geophysical investigations of the tectonic boundary between East and West Antarctica; 1993; Article; Journal; Science; Ten, Brink, U. S.; Bannister, S.; Beaudoin, B. C.; Stern, T. A. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Fri, 1 Jan 1993 00:00 -0600 |
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