Australian Antarctic Southern Ocean Profiling Project
收藏Global Change Master Directory (GCMD)2026-04-25 收录
下载链接：
https://cmr.earthdata.nasa.gov/search/concepts/C1214311823-AU_AADC.html
下载链接
链接失效反馈官方服务：
资源简介：
Metadata record for data from ASAC Project 1119
See the link below for public details on this project.
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.
提供机构：
AU_AADC
