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.

货车湖位于土耳其安纳托利亚东部高原，面积3,520平方公里，体积575立方公里，最大深度450米，东西向东延伸130公里。它是世界上第四大终端湖。在安纳托利亚东部的敏感气候区域内，它代表了黑海、阿拉伯海和红海之间的一级大陆气候档案。根据ICDP深钻作业（由T.Litt协调），2010年夏季在两个地点钻了多个孔。阿赫拉特山脊遗址是最重要的古气候研究遗址，在深盆地（水深360米）的一个低山脊上钻探，在那里获得了一个完整的220米厚的沉积剖面，其中有300个夹层火山灰层。它拥有一个连续的气候档案，涵盖了大约50万年，部分基于每年的层状沉积物。在本项目建议书中，特别注意使用单晶提供基于火山灰层的详细氩气年代学。年代学框架是将百年孢粉分析与全球冰期-间冰期旋回相联系的前提。另一个科学目标是根据高分辨率的年度尺度花粉分析，在过去的500万年在湖货车地区的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