Sedimentary processes in Lake Van, Turkey - correlation of high resolution seismic records with physical properties data

东安纳托利亚（土耳其）的凡湖是世界上所有终端湖中的第四大湖泊（表面积3522平方公里，体积576平方公里，最大深度451米，最大长度130公里）。以前的科学工作表明，凡湖具有作为高分辨率古气候档案的极好潜力，这是由于每年存在层状湖泊沉积物造成的。由于凡湖可以作为调查近东第四纪气候演变的关键地点，ICDP钻探活动计划于2009年夏季进行。根据2004年一次站前调查收集的高分辨率地震资料，提出了5个主要站址。本方案的主要目的是综合解释钻井和地震资料，以重建凡湖的成因和演化。将计算合成地震记录，以便将地震和钻探资料进行对比。密集的测井程序（岩心和井下测井）将是这种方法的基础。测井和地震数据的整合可以利用地震数据从井到3d空间推断地层。将特别强调广泛的大规模消耗事件的时间，这可以作为估计古地震活动的替代指标，并将重点放在对凡湖沉积演化起重要作用的湖平面波动上。

Lake Van in Eastern Anatolia (Turkey) is the fourth largest of all terminal lakes in the world (surface area of 3,522 km², volume of 576 km³, maximum depth of 451 m, maximal length of 130 km WSW-ENE). Previous scientific work has shown that Lake Van has an excellent potential as a high resolution paleo-climate archive caused by the presence of annually laminated lacustrine sediments. As Lake Van can act as a key site for the investigation of the Quaternary climatic evolution of the Near East, an ICDP drilling campaign is scheduled for summer 2009. Five primary sites are proposed based on high resolution seismic data collected during a pre-site survey in 2004. The main aim of this proposal is an integrated interpretation of the drilling and seismic data in order to reconstruct the genesis and evolution of Lake Van. Synthetic seismograms will be calculated for a correlation of seismic and drill data. An intensive logging program (core and downhole logging) will be the basis for this approach. The integration of logging and seismic data allows extrapolating the stratigraphy from the wells to 3D-space by using the seismic data. Special emphasis will be drawn on the timing of widespread mass wasting events, which might be used as proxy for estimating the paleo-seismicity and on lake-level fluctuations, which played an important role for the sedimentary evolution of Lake Van.