Structural control of hydrothermal flow: A comparison between the RIDGE2000 sites and the Iceland spreading centers

本研究对大洋中脊、东太平洋隆起、胡安德·富卡海脊和刘盆地RIDGE2000重点地热站点的已知数据进行了综合、对比的综合和汇编，并对冰岛的地热区进行了广泛的研究。通过对共同登记的水深/地形、形态、地质和热液喷口流体化学和喷口位置数据的分析，可以生成关于绘制和成像的构造、火山地貌和热液矿床的喷口和喷口地点的详细分布图。重复调查和/或长期监测的数据提供了喷口分布和行为随时间变化的详细情况，以清楚地描绘每个地点热液活动的短期演变情况。结果揭示了海洋浅层地壳中热源、流体和渗透路径之间的相互作用，这对热量的传输、地壳的改变和热液产品/矿床(包括活动和化石)的分布具有直接的意义。这项工作的更广泛影响包括博士后培训和与冰岛科学家的国际合作。还将对K-12教室进行公众宣传。

This research carries out an integrative, comparative synthesis and compilation of known data among hydrothermal sites along the mid-ocean ridge at the RIDGE2000 focus sites on the East Pacific Rise, the Juan de Fuca Ridge, and the Lau Basin and extensively studied geothermal areas in Iceland. Analysis of the resulting co-registered bathymetric/ topographic, morphological, geological, and hydrothermal vent fluid chemistry and vent location data allow generation of a detailed picture of the distribution of vents and vent sites with respect to mapped and imaged structures, volcanic features, and hydrothermal deposits. Data from repeat surveys and/or long-term monitoring provide detail on changes in vent distribution and behavior over time to provide a clear picture of the short-term evolution of hydrothermal activity at each location. Results shed light on the interplay between heat sources, fluids and permeable pathways in the ocean shallow crust which has direct implications for the transport of heat, alteration of the crust, and distribution of hydrothermal products/ore deposits (both active and fossil). Broader impacts of the work include postdoctoral training and international collaboration with Icelandic scientists. Public outreach to K-12 classrooms will also be carried out.