Lake Van Drilling Project "PALEOVAN", a long continental record in eastern Turkey: Geochronology, palynostratigraphy and environmental response on volcanic events

凡湖钻探项目“PALEOVAN”，土耳其东部的长期大陆记录：地质年代学、孢粉地层学和火山事件的环境响应

• 批准号: 235992761
• 负责人: Professor Dr. Thomas Litt
• 金额: --
• 依托单位: Abteilung Paläontologie
• 依托单位国家: 德国
• 项目类别: Infrastructure Priority Programmes
• 财政年份: 2013
• 资助国家: 德国
• 起止时间: 2012-12-31 至 2018-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/235992761?language=en
• 关键词: Lake; Van; Drilling; Project; PALEOVAN

Lake Van on the high plateau of eastern Anatolia in Turkey has a surface area of 3,520 km2, a volume of 575 km3, a maximum depth of 450 m, and extends for 130 km WSW-ENE. It is the fourth largest terminal lake in the world. Within the sensitive climate region of eastern Anatolia, it represents a first order continental climate archive between the Black Sea, the Arabian Sea and the Red Sea. Based on an ICDP deep drilling operation (coordinated by T.Litt), two sites with multiple holes were drilled in summer 2010. The Ahlat Ridge-Site, the most important site for paleoclimatological studies, was drilled on a low ridge in the deep basin (water depth 360 m) where a complete 220 m thick sedimentary section with 300 intercalated tephra layers was recovered. It holds a continuous climate archive encompassing ca 500,000 years partly based on annually laminated sediments. In this project proposal, particular attention is paid to provide a detailed Argon chronology based on tephra layers by using single crystals. The chonological frame is a precondition to correlate centennial-scale pollen analyses with global glacial-interglacial cycles. A further scientific goal is the environmental response on major volcanic events in the Lake Van region during the last 500 ka based on high-resolution annual-scale pollen analyses.

凡湖位于土耳其安纳托利亚东部的高原上，表面积为3520平方公里，体积为575平方公里，最大深度为450米，向西向东延伸130公里。它是世界上第四大终端湖。在安纳托利亚东部敏感的气候区域内，它代表了黑海，阿拉伯海和红海之间的一级大陆气候档案。基于ICDP深钻井作业（由T.Litt协调），在2010年夏季钻了两个有多个孔的地点。Ahlat ridge - site是古气候学研究最重要的地点，在盆地深处（水深360米）的一个低山脊上钻探，在那里恢复了一个完整的220米厚的沉积剖面，其中有300个夹层层。它拥有一个连续的气候档案，其中包括大约50万年，部分基于每年的层压沉积物。在这个项目提案中，我们特别注意通过使用单晶提供一个详细的氩气年表。球粒学框架是将百年尺度花粉分析与全球冰期-间冰期旋回相关联的先决条件。进一步的科学目标是在高分辨率的年尺度花粉分析的基础上，对过去500 ka凡湖地区主要火山事件的环境响应。

项目成果

Abrupt climate and vegetation variability of eastern Anatolia during the last glacial

末次冰期期间安纳托利亚东部的气候突变和植被变化

• DOI: 10.5194/cp-11-1491-2015
• 发表时间: 2015
• 期刊: Climate of The Past
• 影响因子: 4.3
• 作者: Pickarski;Kwiecien;Langgut
• 通讯作者: Langgut

A new high-resolution pollen sequence at Lake Van, Turkey: insights into penultimate interglacial–glacial climate change on vegetation history

• DOI: 10.5194/cp-13-689-2017
• 发表时间: 2016-12
• 期刊: Climate of The Past
• 影响因子: 4.3
• 作者: N. Pickarski;T. Litt

Millennial to orbital-scale variations of drought intensity in the Eastern Mediterranean

• DOI: 10.1016/j.quascirev.2015.12.016
• 发表时间: 2016-02
• 期刊: Quaternary Science Reviews
• 影响因子: 4
• 作者: M. Stockhecke;A. Timmermann;R. Kipfer;G. Haug;O. Kwiecien;T. Friedrich;L. Menviel;T. Litt;N. Pic