Collaborative Research: Long Core Sea Trials

0631574，Curry 0631854，Pisias 0632006，Mountain该合作奖授予伍兹霍尔海洋学研究所、俄勒冈州州立大学和罗格斯大学，用于测试一种新的活塞式取芯系统，该系统是在NSF海洋科学部的支持下开发的，目前已接近完成。 这种新的取芯系统被设计用于回收长达42米的大直径、扰动最小的活塞岩心，特别是为参与古气候、古海洋学或大陆边缘研究的美国海洋地质学家提供了能力的重大提高。 该系统将安装在联合国海洋法办事处的一艘大型船只R/V Knorr上，并为此目的进行了加强，取芯系统包括一个新的高性能绞车系统，配有合成电缆、一个新的A型框架和专门的岩心处理系统，以优化安全部署和回收。 测试将在百慕大海隆和新泽西边缘以前研究得很好的地区进行，以便在新的取芯器和现有系统之间进行详细的比较。 部署测试将改变堆芯长度和重量，以及桶壁直径的不同组合。 他们将解决自由落体长度和拔出，仔细研究作为水深和核心重量的功能反弹。 测试还将解决与两个研究区域不同水深和沉积物类型有关的差异。 船上测试将包括使用多传感器跟踪系统进行详细分析，以测量密度、磁化率和P波速度以及沉积物颜色。

0631574, Curry0631854, Pisias0632006, MountainThis collaborative award to Woods Hole Oceanographic Institution, Oregon State University and Rutgers University provides support to test a new piston coring system that has been developed with support from the NSF Division of Ocean Sciences, and is nearing completion. This new coring system has been designed to recover large diameter, minimally disturbed piston cores up to 42 meters long, offering a major increase in capability to U.S. marine geoscientists involved in paleoclimate, paleoceanography or continental margin research, in particular. It will be installed on R/V Knorr, a large UNOLS vessel, which has been strengthened for this purpose, and the coring system includes a new, high performance winch system with synthetic cable, a new A-frame and specialized core handling system to optimize safe deployment and recovery. The tests will be carried out on the Bermuda Rise and New Jersey margin in areas well studied previously so that detailed comparisons can be carried out between the new corer and existing systems. Deployment tests will vary core length and weight, as well as different combinations of barrel wall diameters. They will address freefall length and pullout, looking carefully at rebound as a function of water depth and core weight. Testing will also address differences related to the different water depths and sediment types in the two study areas. Shipboard tests will include detailed analysis using a multi-sensor track system to measure density, magnetic susceptibility and P-wave velocity as well as sediment color.***