Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
A marked bend in the Hawaiian-Emperor seamount chain supposedly resulted from a recent major reorganization of the plate-mantle system there 50 million years ago. Although alternative mantle-driven and plate-shifting hypotheses have been proposed, no contemporaneous circum-Pacific plate events have been identified. We report reconstructions for Australia and Antarctica that reveal a major plate reorganization between 50 and 53 million years ago. Revised Pacific Ocean sea-floor reconstructions suggest that subduction of the Pacific-Izanagi spreading ridge and subsequent Marianas/Tonga-Kermadec subduction initiation may have been the ultimate causes of these events. Thus, these plate reconstructions solve long-standing continental fit problems and improve constraints on the motion between East and West Antarctica and global plate circuit closure.
Язык оригинала | английский |
---|---|
Страницы (с-по) | 83-86 |
Число страниц | 4 |
Журнал | Science |
Том | 318 |
Номер выпуска | 5847 |
DOI | |
Состояние | Опубликовано - 5 окт 2007 |
ID: 35964737