Decadal- to orbital-scale climate variability in the Indo-Pacific Warm Pool during the past ca. 650,000 years

过去约 65 万年印度太平洋暖池的年代际至轨道尺度的气候变化

• 批准号: 252951314
• 负责人: Professor Dr. Martin Melles
• 金额: --
• 依托单位: Institut für Geologie und Mineralogie
• 依托单位国家: 德国
• 项目类别: Infrastructure Priority Programmes
• 财政年份: 2014
• 资助国家: 德国
• 起止时间: 2013-12-31 至 2018-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/252951314?language=en
• 关键词: Decadal; orbital; scale; climate; variability

The investigations proposed within the scope of this renewal proposal contribute to the ICDP funded ´Towuti Drilling Project´ (TDP) in Indonesia. They apply to the entire, ~137 m thick and presumably 650,000 years old lake sediment record that was drilled in spring 2015 at TDP site 2 in Lake Towuti, which is located on Sulawesi Island in the center of the Indo-Pacific Warm Pool. Multidisciplinary chronostratigraphical, sedimentological, geochemical, and mineralogical analyses shall be carried out on the core composite, in order (i) to contribute to the dating of the sediment record, (ii) to decipher the long-term development of Lake Towuti, with its formation and the onset of riverine input from other Malili lakes, (iii) to reconstruct the precipitation-controlled riverine inflow from the Mahalano River during the past ~80,000 years with up to decadal resolution, (iv) to identify the dimension and potential reasons for lake-level fluctuations in Towuti, (v) to provide input to the understanding of the variability in mixing and stratification of Towuti, and (vi) to contribute to the reconstruction of weathering conditions and soil erosion in the lake´s catchment. This research shall be supported by the investigation of surface sediment samples, which were recovered during the drilling campaign and which provide important information on modern sedimentation processes. The project thus promises partly unique paleoenvironmental and paleoclimatological data that complement respective research by other international projects on Lake Towuti, and important background information for the associated biological projects.

印度尼西亚。整个苹果，〜137 m厚，大概是650，000年的沉积物记录，该记录在2015年春季在TDP Site 2的Towuti湖上进行了钻探，矿物学分析应在核心复合材料上进行，以（i）也有助于沉积物记录，（ii）从其他马里利湖（III）中解释了塔托蒂湖的长长，以重建降水量 - 在过去的大约80，000年中，摩尔河的河流河流均达到了二十，000年，以确定湖泊的尺寸和潜力。拖曳的分层和（vi）重建了湖水中的风化遏制和土壤证据。 DataTat补充了其他国际陶氏湖的研究，以及相关生物项目的重要背景信息。

项目成果

Climatic and tectonic controls on source-to-sink processes in the tropical, ultramafic catchment of Lake Towuti, Indonesia

印度尼西亚托乌提湖热带超镁铁质流域的气候和构造对源-汇过程的控制

• DOI: 10.1007/s10933-018-0059-3
• 发表时间: 2018
• 期刊: Journal of Paleolimnology
• 影响因子: 2.1
• 作者: Morlock M.A;Vogel H;Nigg V;Ordoñez L;Hasberg A.K.M;Melles M;Russell J.M;Bijaksana S. ;the TDP Science Team
• 通讯作者: the TDP Science Team

Modern sedimentation processes in Lake Towuti, Indonesia, revealed by the composition of surface sediments

• DOI: 10.1111/sed.12503
• 发表时间: 2018-08
• 期刊: Sedimentology
• 影响因子: 3.5
• 作者: Ascelina K. M. Hasberg;S. Bijaksana;P. Held;J. Just;M. Melles;Marina A. Morlock;S. Opitz;J. Russell;H. Vogel;V. Wennrich