RUI: Fracture Zone-Hot Spot Interactions Along the Marquesas Fracture Zone

在1987年对马克萨斯岛链的考察中， 主要的研究人员绘制了一个高岭的一部分， 在马克萨斯海峡和马克萨斯海峡的交叉口 断裂带 他们得出结论，断裂带是一个薄弱的 太平洋板块内的一个区域， 热点到达地表。 该项目将调查 马克萨斯断裂带的多波束剖面图 测深工具、重力、磁力、单通道 反射和疏浚。 调查将研究岩浆 三个热点的表达之前，期间，和之后， 遇到断裂带。 骨折的形态 热点交叉口的区域将与其他区域进行对比， 尚未遇到热点的细分市场。 总目标 是为了更好地限制断裂带地形的起源， 热点的内在维度和时间连续性， 它们与岩石圈不连续面的相互作用， 马克萨斯最古老的部分的方位角和范围马克萨斯最古老的部分的方位角和范围 断裂带

During a 1987 expedition to the Marquesas island chain, the principal investigators mapped part of a high ridge that lies at the intersection of the Marquesas swell with the Marquesas fracture zone. They concluded that the fracture zone is a weak zone within the Pacific plate that allowed magmas from a weak hotspot to reach the surface. This project will survey sections of the Marquesas fracture zone using multibeam bathymetric tools, gravity, magnetics, single-channel reflection, and dredging. The survey will study the magmatic expression of three hotspots before, during, and after they encounter the fracture zone. The morphology of the fracture zone at the hotspot intersections will be contrased with other segments that have not encountered hotspots. The overall goals are to better constrain the origin of fracture zone topography, the intrinsic dimension and temporal continuity of hotspots, their interaction with lithospheric discontinuities, and the azimuth and extent of the oldest sectionof the Marquesas fracture zone.