Collaborative Research: Early Tertiary Tectonic Evolution of the Pacific-Australia-Antarctic Plate Circuit

9416989坎德在巴勒尼断裂带以东的东南印度海脊地段存在严重的磁异常13、18和20错配，范围在50至250公里之间。该项目将调查南塔斯曼海、翡翠盆地和罗斯海海湾北部的关键板块边界和相关的磁异常，这将更好地约束这一板块运动的历史。收集的数据将被用来检验这样的假设，即海脊的南极一侧作为一个独立的板块，连接到玛丽·伯德大陆，并且这些异常间接表明在异常24到13次之间南极东部和西部之间的运动。将在塔斯曼海的R/V W M尤文号和罗斯海海湾以北的R/V N B Palmer号上进行调查。***

9416989 Cande There is a significant misfit, ranging from 50 to 250 kms, of magnetic anomalies 13, 18, and 20 along the section of the Southeast Indian Ridge east of the Balleny fracture zone. This project will survey the critical plate boundaries and relevant magnetic anomalies in the South Tasman Sea, Emerald Basin and north of the Ross Sea embayment that will better constrain the history of the this plate motion. Data collected will be used to test the hypothesis that the Antarctic side of the ridge acted as a separate plate, attached to Marie Byrd Land, and that these anomalies indirectly indicate motion between East and West Antarctica between anomalies 24 and 13 time. Surveys will be conducted on the R/V W M Ewing in the Tasman Sea, and on the R/V N B Palmer north of the Ross Sea embayment. ***