Collaborative Research: Tests of Models of Crustal Accretion and Magnetization at Endeavor Deep

沿着胡安·费尔南德斯微板块的奋进号揭示了一个50公里长，3-4公里深的年轻海洋地壳，以非常快的扩张速度形成。该项目包括沿“奋进深渊”东北壁进行的地球物理调查与现场观测和采样相结合。高分辨率DSL-120侧扫声纳将完全对陡坡进行失谐，并用于绘制10米分辨率的岩性和结构区域趋势图。岩石疏浚将确定更详细取样的具体目标。Jason II的数字成像和岩石学采样样带将为区域视图奠定基础，并提供代表性剖面的高分辨率视角。深拖曳三分量磁力计数据将在这些相同的尺度上绘制海洋地壳的磁化图。

The Endeavor Deep along the Juan Fernandez microplate exposes a 50 km-long 3-4 km-deep section of young ocean crust created at very fast spreading rates. This projects involves combined geophysical surveys with in situ observations and sampling along the northeast wall of the Endeavor Deep. High-resolution DSL-120 side-scan sonar will completely insonify the scarp and be used to map regional trends in lithology and structure at 10 m resolution. Rock dredging will identify specific targets for more detailed sampling. Digital imaging and petrologic sampling transects with Jason II will groundtruth the regional view and provide a high-resolution perspective of representative sections. Deep-towed 3-component magnetometer data will map the magnetization of oceanic crust at these same scales.