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

9416989 Cande 沿着巴勒尼断裂带以东的东南印度洋脊部分，存在 50 至 250 公里范围内的 13、18 和 20 号磁异常的显着错位。 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磁异常，这将更好地限制该板块运动的历史。 收集到的数据将用于检验这样的假设：山脊的南极一侧作为一个单独的板块，附着在玛丽·伯德地（Marie Byrd Land）上，并且这些异常间接表明第 24 次和第 13 次异常之间南极洲东部和西部之间的运动。 调查将在塔斯曼海的 R/V W M Ewing 和罗斯海海湾以北的 R/V N B Palmer 上进行。 ***

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. ***