Origin of continental margin bedforms: slides or drift deposits, a rock magnetic approach

提供资金解决关于大陆边缘底形的起源的争议，包括“洪堡幻灯片”功能关闭加州海岸。以前的工作人员使用地震反射和多波束声纳数据解释为滑坡或漂移沉积物。研究所将利用现有的沉积物岩心和对海洋沉积物进行磁化率各向异性分析，以确定某些大陆边沉积物的性质（滑动存款与底形），从而设法解决这个问题。虽然已经证明AMS方法可以区分滑塌和未变形的沉积物，但该方法尚未应用于来源不明的海底结构。

Funds are provided to resolve a controversy about the origin of the continental margin bedforms comprising the "Humboldt slide" feature off the California coast. Previous workers using seismic reflection and multibeam sonar data have interpreted them as either landslide or drift deposits. The PIs will attempt to resolve the question by using existing sediment cores and apply anisotropy of magnetic susceptibility (AMS) analysis of marine sediment to determine the nature of some continental margin deposits (slide deposit vs. bedforms). Though it has been demonstrated that the AMS method can distinguish slumps from un-deformed sediment, this method has not yet been applied to seafloor structures of unknown origin.