lODP Exp. 317 Canterbury Basin - environmental magnetism and dating of Miocene through recent sedimentary sequences

lODP Exp. 317 坎特伯雷盆地 - 通过近期沉积层序进行的中新世环境磁学和年代测定

• 批准号: 143034267
• 负责人: Privatdozent Dr. Michael Urbat
• 金额: --
• 依托单位: Institut für Geologie und Mineralogie
• 依托单位国家: 德国
• 项目类别: Infrastructure Priority Programmes
• 财政年份: 2009
• 资助国家: 德国
• 起止时间: 2008-12-31 至 2010-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/143034267?language=en
• 关键词: lODP; Exp.; 317; Canterbury; Basin

lODP Exp. 317 will focus on the relative importance of global sea level (eustasy) versus local tectonic and sedimentary processes in controlling continental margin depositional cyclicity. M. Urbat is invited to sail as a shipboard paleomagnetist. Principal objectives (this proposal) include the establishment of a robust time frame for the sediment drilled using Magnetostratlgraphy, both shipboard and postcruise for refinements. Further objectives, mainly of the post-cruise studies, comprise environmental magnetic methodology as to characterize (paleo-)environmental factors includeing ocean circulation which control the Canterbury Basin sedimentary record. Magnetic minerals have been shown to sensitively reflect minute depositional/geochemical changes in a variety of marine sediments. Results will improve the so far mainly seismically resolved sequence architecture and respective depositional controls. Post-cruise environmental magnetic research will focus on sequence boundaries 4 - 5 (12.4 - 11 Ma) and will be integrated with non-magnetic data (e.g. geochemistry, sedimentology) to be determined on-board by the shipboard scientific party and in post-cruise collaboration.

lODP实验317将侧重于全球海平面相对于当地构造和沉积过程在控制大陆边缘沉积旋回性方面的相对重要性。M.乌尔巴特被邀请作为一名船上的古地磁学家航行。主要目标（本提案）包括为船上和巡航后使用磁性地层学钻探的沉积物确定一个可靠的时间框架，以进行完善。进一步的目标，主要是巡航后研究，包括环境磁学方法，以表征（古）环境因素，包括控制坎特伯雷盆地沉积记录的海洋环流。磁性矿物已被证明敏感地反映了各种海洋沉积物中微小的沉积/地球化学变化。结果将改善目前主要由地震分辨的层序结构和各自的沉积控制。巡航后的环境磁性研究将侧重于层序边界4 - 5（12.4 - 11 Ma），并将与船上科学小组在船上确定的非磁性数据（例如地球化学、沉积学）结合起来，并在巡航后进行协作。