Postmiocene geodynamic evolution of the drake passage,Western Antarctic Region,southern ocean |
| |
| Authors: | D E Teterin |
| |
| Institution: | (1) Department of Geomatics Engineering, University of Calgary, Calgary, AB, T2N1N4, Canada;(2) School of Earth Sciences, The Ohio State University, Columbus, OH 43210, USA;(3) Korea Polar Research Institute, Incheon, 406-840, Korea;(4) National Geodetic Survey, NOAA, 1315 East–West Highway, Silver Spring, MD 20910, USA;(5) Department of Earth and Environmental Sciences, Korea University, Seoul, 136-713, Korea |
| |
| Abstract: | In 1994–2006, the German research vessel, Polarstern, and the Russian research vessel, Akademik Boris Petrov, carried out marine geologic and geophysical explorations in the Western Antarctic Region within the Bellingshausen, Amundsen,
and Scotia marginal Seas and the Drake Passage. In these expeditions, new unique data on submarine topography have been collected
by a multibeam echosounder, gravity and magnetic measurements have been carried out, multichannel seismic profiling has been
performed, and the collections of rock samples have been acquired. The analysis and interpretation of new evidence together
with previous geologic and geophysical data for the Drake Passage region have shown that end of spreading in the Aluk Ridge
three million years ago resulted in the redistribution of stresses associated with the relative motion of the Antarctic, Scotia,
and Phoenix Plates, which, in turn, caused significant tectonic reconstruction of the entire transition zone of the Drake
Passage. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
