Reconstructing paleoclimatic/paleoenvironmental evolution and volcanic ash dispersal during the late Pleistocene in the Western Tropical Pacific using lacustrine terrestrial records from the Malili Lake System, Sulawesi, Indonesia

位于印度尼西亚苏拉威西岛的马塔诺湖和托乌提湖大约有100 - 400万年的历史，它们包含了热带太平洋西部陆地环境中过去气候和环境变化以及火山活动的宝贵档案。该提案为从这些湖泊中恢复长达30米的沉积物序列寻求资金，以评估和研究印度尼西亚中部晚更新世和全新世的气候和火山历史。我们提出的研究建立在以前的地震反射和在我们的美国和印度尼西亚合作者的主持下进行的实地调查的基础上，这些调查证明两个湖泊都含有声学上高度分层的沉积物，其沉积速度非常适合晚更新世/全新世古研究。沉积物岩心将被运往德国科隆大学，由德国、美国和印度尼西亚的合作者进行分析。这项工作将为印度尼西亚对流和水文的历史及其与全球气候变化的关系提供重要的新见解，以及关于附近火山的火山灰扩散、年龄、起源和马里利湖（一个独特而脆弱的湖泊生态系统）过去变化的新信息。

Given their approximate age of 1 – 4 million years Lakes Matano and Towuti, located on the Island of Sulawesi, Indonesia, comprise valuable archives of past climatic and environmental change as well as volcanic activity in a terrestrial environment of the Western Tropical Pacific. This proposal seeks funds for the recovery of up to 30 m long sediment sequences from these lakes in order to evaluate and investigate late Pleistocene and Holocene climate and volcanic history in central Indonesia. Our proposed research builds upon previous seismic reflection and field surveys conducted under the auspices of our American and Indonesian collaborators, which evidenced that both lakes contain acoustically highly stratified sediment accumulating at rates ideal for late Pleistocene/Holocene paleo studies. Sediment cores will be shipped to the University of Cologne, Germany, for analyses by German, American and Indonesian collaborators. This work will provide fundamentally important new insights into the history of Indonesian convection and hydrology and its relationships to global climate changes, as well as new information regarding the dispersal of ash from nearby volcanoes, age, origin, and past changes in the Malili Lakes, a unique and fragile lake ecosystem.