摘要:
深海沉积物作为一种重要的深海环境变化记录载体,是海洋学尤其是深海研究必不可少的基础研究资料。因此如何获得超长、连续、无扰动的沉积物柱状样品是深入开展深海科学研究的关键技术环节,也是我国在深海研究国际竞争中取得优势的主要技术瓶颈之一。通过综述国内外深海超长沉积物取样系统的研究进展,发现当今通用的沉积物取样系统存在诸多技术问题,从而不可避免地对沉积物产生扰动、压缩、断层等破坏。基于深海取样系统研制的国内外发展动态,提出了一种新的结合普通重力取样器对浅表沉积物样品无扰动取样和重力活塞取样器获取超长沉积物的混合型超长沉积物取样系统的设计构想。
Abstract:
The deep-sea sediment core, as a kind of important record of the changes in deep-sea environment, is a basic requirement for marine science especially for deep-sea research. How to recover longer, uninterrupted and high resolution sediment cores remains the key to deep-ocean science. It is also a main challenge for China to face with in the international competition. In this study, we reviewed the recent progress of deep-sea long coring system in the world, analyzed the technical problems related to the system, such as disturbance, compression and breaking. Possible solutions are discussed. In the new design, we combine the advantages of the gravity sampler and piston corer. It is suggested that the gravity sampler be used for the upper part of 10 m in depth and piston corer for the coring below the depth.
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