Assessing Volcanic Construction Processes at Shatsky Rise from 3-D tomographic imaging

提供资金，将以前资助的沙茨基隆起地震折射研究实验从2维扩展到3维，方法是结合地震折射和MCS反射测量的所有可用镜头，通过3D旅行时层析成像TAMU地块沙茨基隆起的内部体积。有了这些新的信息，PI希望能够更好地区分内部3D结构的存在。沙茨基隆起被认为是一个高度优先的大洋LIP目标，因为它形成于漫长的白垩纪正常时期之前，磁极反转频繁，在此期间，许多后来的太平洋高原形成；研究沙茨基隆起因此使我们能够更好地限制其侵位历史。更广泛的影响：更广泛的影响包括最初提议的3D工作的完成(由于LDEO的一名合作PI的死亡而处于危险之中)，这将使其对地球科学界更有用。将普遍提供的基于网络的互动能力这一新增任务也是对该方案的一个很好的补充，也将把成果的用处扩大到更广泛的社区。该奖项将支持一名女性联合少年派。

Funds are provided to extend a previously funded experiment of a seismic refraction study on Shatsky Rise from 2 to 3 dimensions by incorporating all of the available shots from the seismic refraction and MCS reflection surveys to image the interior volume of Shatsky Rise at TAMU Massif by 3D traveltime tomography. With this new information, the PI hopes to be able to better distinguish the presence of internal 3D structures. Shatsky Rise is considered to be a high-priority oceanic LIP target because it was formed at a time of frequent magnetic polarity reversals just prior to the long Cretaceous Normal period during which many later Pacific oceanic plateaus formed; studying Shatsky Rise thus allows us to better constrain its emplacement history.Broader Impacts: Broader impacts include the completion of the originally proposed 3D work (that was put at risk due to the death of a co-PI at LDEO), which will make it more useful to the geosciences community. The added task of the web-based interaction capability to be made available at large is also a good complement to the program and will also extend the usefulness of the results to the wider community. The award will support a female co-PI.