Shallow Seismic Structure of the Ocean Crust and its Correlation with Seafloor Lithologies on the Kane Megamullion, Mid-Atlantic Ridge 23 degrees 20'-23 degrees 40' N

利用现有的多道地震数据和先前获得的横跨中大西洋海脊的凯恩巨型山脉的岩性样本，研究人员将约束这一特征的大洋地壳结构、蛇纹岩化和辉长岩深成作用的程度，以及地壳非均质性的规模。凯恩巨型被提议作为潜在的IODP钻探目标，用于研究被认为暴露在许多大洋中脊附近的如此大规模的、剥离覆盖的地貌的下地壳。这项拟议的研究将涉及高分辨率旅行时间层析成像、重力建模和地理信息系统(GIS)中的特征关联，不仅将为勘测最好的巨型钻石之一的结构提供新的见解，还将有助于确定该特征潜在钻探地点的细节。更广泛的影响包括对处于职业生涯早期的科学家的支持，对研究生和本科生暑期学生的支持，以及世界卫生组织地理信息系统能力的扩展。该项目还服务于与了解洋壳有关的IODP目标。

Using existing multichannel seismic data and previously acquired lithologic samples across the Kane Megamullion on the Mid-Atlantic Ridge, researchers will constrain oceanic crustal structure, the degree of serpentinization and gabbro plutonism, and the scale of crustal heterogeneities at this feature. The Kane Megamullion has been proposed as a potential IODP drilling target for the study of the lower crust that is thought to be exposed at such large-scale, detachment-draped features proximal to many of the mid-ocean ridges. The proposed research, which will involve high-resolution travel-time tomography, gravity modeling, and correlation of features within a Geographic Information System (GIS), will not only provide new insights into the structure of one of the best surveyed megamullions, but will also serve to identify the details of potential drilling sites on the feature. Broader impacts include support for a scientist who is early in his professional career, support for a graduate student and undergraduate summer student, and expansion of the GIS capabilities at WHOI. The project also serves IODP goals related to understanding oceanic crust.