Facies, grain shape and composition of Late Pleistocene, unconsolidated, volcanoclastic turbidites (Lesser Antilles, IODP 340 Sites 1397 and 1398): Understanding volcanic and climatic forcing of submarine mass flows

申请人计划与一名博士生一起，对2012年3 - 4月在多米尼克和马提尼克岛（小安的列斯群岛）西部钻探和回收的晚更新世火山碎屑浊积岩和碎屑进行研究（申请人是该邮轮的船党成员）。该项目包括对2012年8月从u1397和1398地点采集的221个样品的沉积相、颗粒形状和组成进行详细分析。研究结果将由Freiberg研究小组对每个样品的生物成因成分进行生物地层学和古深度测量研究来支持。我们的模型有望通过整合船上数据（岩石物理学、钻孔测井等）和其他IODP 340研究小组的发现（例如年代地层学）得到进一步证实。拟建项目的重点是对火山成因颗粒的形状和内部结构进行定量的三维分析。除了完成关于小安的列斯岛弧火山演化的知识外，我们还想测试浊积岩的结构/成分分析在多大程度上允许对其起源和触发机制进行自信的假设。

Together with a PhD student, the applicant plans to study Late Pleistocene volcaniclastic turbidites and debrites, which have been drilled and recovered west of Dominica and Martinique (Lesser Antilles) in March-April 2012 during IODP Cruise 340 (the applicant was ship party member of this cruise). The project comprises detailed analysis of the depositional facies, grain shape, composition of 221 samples that have been taken in August 2012 from cores of Sites U 1397 and 1398. The results will be supported by biostratigraphic and paleobathymetric investigation of the biogenic component in each sample, carried out by the Freiberg research group. Further confirmation of our models is expected from integration of ship board data (petrophysics, drill hole logging etc.) and findings of other IODP 340 research groups (e.g. chronostratigraphy). Focus of the proposed project is a quantitative 3D analysis of the shape and internal texture of volcanigenic grains. Apart from completion of knowledge on the volcanic evolution of the Lesser Antilles arc, we want to test to what extent textural/compositional analysis of turbidites allows for confident assumption on their origin and triggering mechanism.