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| HOW FLAT IS TIBET |
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| Author(s): FIELDING E, ISACKS B, BARAZANGI M, DUNCAN C |
| Source: GEOLOGY Volume: 22 Issue: 2 Pages: 163-167 Published: FEB 1994 |
| Times Cited: 122 References: 18 |
| Abstract: High resolution digital topography (three are-second grid) for most of Tibet provides new information to characterize the relief of the highest and largest plateau on Earth. The arid to semiarid central and northern part of the plateau interior has low relief (average slopes of similar to 5 degrees over 250 m windows) and a mean elevation of 5023 m above sea level. At moderate wavelengths of similar to 100 km, relief is similar to 1 km or less for most of Tibet, as opposed to the much higher relief of up to 6 km on the plateau edges, where glacial and fluvial dissection is greater because of higher levels of precipitation. The only faults manifesting significant topographic relief are the relatively small scale, generally north-trending graben systems, primarily in southern Tibet, and several large-scale fault systems near the edges of Tibet. The flatness of Tibet implies that (1) there has been little deformation (especially shortening) of the uppermost crust north of the graben systems during the late Cenozoic, and (2) shallow crustal isostatic compensation has been acting to level the surface of the plateau. |
| Document Type: Article |
| Language: English |
| Reprint Address: FIELDING, E (reprint author), CORNELL UNIV, INST STUDY CONTINENTS, SNEE HALL, ITHACA, NY 14853 USA |
| Publisher: GEOLOGICAL SOC AMERICA, PO BOX 9140 3300 PENROSE PLACE, BOULDER, CO 80301 |
| Subject Category: Geology |
| IDS Number: MV539 |
| ISSN: 0091-7613 |
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