The South Pacific Superswell

这种“基于资产的更新”为博士提供资金。 McNutt将继续研究两个密切相关的项目 MG G授予她;两者都属于异常的研究 太平洋下的洋壳隆起 中的第一 这些特征是南太平洋超级井，一个大面积的 海底比其年龄预测的浅750米 相对于Parsons的125 km厚的冷却板模型， 斯克拉特 McNutt博士先前的分析对当地的 密度和动态应力场异常是 原因;一个板块模型变薄到75公里，并伴随着小- 在下面的软流层的规模对流是有利的。 这一更新将使她能够完成的书面阶段， 该分析，并通过编写计算机来评估模型 代码，将模拟这种对流，并测试其 稳定 达尔文海隆是研究的第二个深度异常 麦克纳特博士和他的同事认为， 是由创造超级井的相同过程形成的。 她将继续分析均衡补偿 在最近的一次航行中， 达尔文崛起的目标是获得更好的 了解地幔动力学。

This "accomplishment-based-renewal" provides funds for Dr. McNutt to continue research on two closely related projects awarded her by MG&G; both pertain to the study of anomalous elevations of ocean crust beneath the Pacific. The first of these features is the South Pacific Superswell, a large area of seafloor as much as 750m shallower than predicted by its age relative to the 125km-thick cooling plate model of Parsons and Sclater. Previous analysis by Dr. McNutt discount both local density and dynamic stress field anomalies as the fundamental cause; a plate model thinned to 75 km and accompanied by small- scale convection in the underlying asthenosphere is favored. This renewal will allow her to complete the write-up phase of this analysis, and to evaluate the model by writing computer code that will model this convective flow and test its stability. The Darwin Rise is a second depth anomaly studied under a previous award, and Dr. McNutt and colleagues argue it was formed by the same processes that created the Superwell. She will continue analysis of isostatic compensation surrounding Mesozoic guyots surveyed on a recent cruise across the Darwin Rise with the objective of gaining better understanding of mantle dynamics.