SPP 1144: From Mantle to Ocean: Energy, Material and Life Cycles on Spreading Axes

优先方案的目的是对大西洋的大洋中部扩散系统进行多学科、多部分规模的研究。这项工作选择了两个地区(15°N和4-11°S)。该方案有两个特别的极具创新性的特点：--对岩石学、火山学、地球动力学、地球物理学、热液作用、微生物学、大生物学、海洋学、水化学和对流模拟等领域的预先确定的领域进行综合研究；--使用最先进的遥控运载工具(ROV)对海底进行精确的井位取样和观察。较短的钻芯将把我们的知识扩展到地下。地球物理调查应该对整个地壳和地幔更深的部分有深入的了解。利用几年来在同一地区的调查，我们将获得关于在扩张轴上不同过程(例如喷发、构造、热液和生物活动)的时间变化的信息，这些信息将扩展我们今天对山脊的三维看法，包括时间轴。所有的调查都与国际山脊社区有很大的关系。脊间倡议成立于1992年，是成功协调与扩散轴有关的研究的重要工具。InterRidge通过交换信息，促进海洋扩展轴线上的跨学科、国际研究。

The aim of the Priority Programme is to carry out a multi-disciplinary, multi-segment scale study of the mid-ocean spreading system in the Atlantic. For this work two areas (15°N and 4-11°S) have been selected. The programme has two particulary highly innovative features:-- the integrated study of pre-defined areas of groups covering the highly disparate fields of petrology, volcanology, geodynamics, geophysics, hydrothermalism, microbiology, macrobiology, oceanography, water chemistry and convection modelling;-- the use of a state-of-the-art remotely-operated vehicle (ROV) for precise well-located sampling and observation of the seafloor.A detailed surface sampling will provide indications of regional variations in eruption processes, magma sources and hydrothermal deposits as well as the spatial distribution of faunal assemblages. Short drill cores will extend our knowledge into the subsurface. Geophysical investigations should give insights into the entire crust and deeper parts of the mantle.Using investigations in the same areas over several years we will get information about temporal variations in the different processes at spreading axes (e.g. eruptions, tections, hydrothermal and biological activities), information which will extend our present-day three-dimensional view of the ridges to include a time-axis.All investigations are of great relevance for the international ridge community. The InterRidge-initiative, which was established in 1992, is an important tool for the successful coordination of studies related to spreading axes. InterRidge promotes interdisciplinary, international studies at oceanic spreading axes through the exchange of information.