International Conference: The Towuti Drilling Project: Paleoenvironments, Biological Evolution, and Geomicrobiology of a Tropical Western Pacific Lake

国际会议：陶乌提钻探项目：热带西太平洋湖泊的古环境、生物进化和地球微生物学

• 批准号: 1745739
• 负责人: James Russell
• 金额: $ 2.45万
• 依托单位: Brown University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-08-15 至 2019-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1745739&HistoricalAwards=false
• 关键词: International; Conference; Towuti; Drilling; Project

The Towuti Drilling Project (TDP) is an international research program to understand long-term environmental and climatic change in the tropical western Pacific, the impacts of geological and environmental changes on the biological evolution of endemic aquatic taxa, and the geomicrobiology and geochemistry of metal-rich, ultramafic-hosted lake sediment. Lake Towuti is the largest and oldest lake in Southeast Asia, and thus holds one of the longest records of climate change anywhere in the region. The lake is home to dozens of species of endemic fish, snails, shrimp, and other organisms, and is surrounded by the most diverse rainforest on Earth. The lake is also one of the only large ferruginous (iron-rich) lakes on Earth, and hosts an exotic microbial community that is potentially analogous to the ecosystems that existed in early Earth's ferruginous oceans. In late 2015, the TDP (EAR-1401448) recovered over 1000 m of sediment drill core from the floor of Lake Towuti to reconstruct how Indo-Pacific climate and these unique ecosystems evolved during the Pleistocene epoch. This award provides support for an international workshop in Makassar, Indonesia, to synthesize results from the TDP and to plan research on the environmental history of Indonesia. Specific areas to be addressed include: 1) a new long, high-resolution record of tropical western Pacific climatic change during last ~1 million years to test the impacts of changes in global temperature, greenhouse gas concentrations, and other climate forcings on Indo-Pacific hydrology; 2) the response of Southeast Asian tropical rainforests to past climate change, including climates warmer than the present; 3) information on the age and history of the lake and the limnological conditions that gave rise to Lake Towuti's endemic fauna and flora; and 4) new insight into the microbial processes operating at depth in Towuti's sediments and their effects on sediment mineralogy and biogeochemistry.

Towuti钻井项目（TDP）是一项国际研究计划，旨在了解热带西太平洋的长期环境和气候变化，地质和环境变化对地方性水生类群生物学进化的影响以及金属富裕的超富含湖泊沉积物的地球生物学和地球化学。托图蒂湖是东南亚最大，最古老的湖泊，因此拥有该地区任何地方气候变化最长的记录之一。该湖是数十种特有鱼类，蜗牛，虾和其他生物的家园，被地球上最多样化的雨林所包围。 该湖也是地球上唯一的大型铁质（铁富含铁的）湖泊之一，并拥有一个异国情调的微生物群落，该群落可能与早期地球铁质的海洋中存在的生态系统相似。 2015年底，TDP（EAR-1401448）从陶氏湖地板上恢复了1000 m的沉积物钻头，以重建印度太平洋气候和这些独特的生态系统如何在更新世时期发展。 该奖项为印度尼西亚马卡萨尔的国际研讨会提供了支持，以综合TDP的结果，并计划有关印度尼西亚环境历史的研究。要解决的特定领域包括：1）在过去〜100万年中，热带西部太平洋气候变化的新的高分辨率记录，以测试全球温度，温室气体浓度和其他气候强迫对印度太平洋水文学的变化的影响； 2）东南亚热带雨林对过去气候变化的反应，包括比现在温暖的气候； 3）有关湖泊的年龄和历史的信息以及引起陶氏湖的地方性动物群和动植物的林木条件； 4）对Towuti沉积物中深度运行的微生物过程的新见解及其对沉积物矿物学和生物地球化学的影响。

项目成果

Empowering conventional Rock-Eval pyrolysis for organic matter characterization of the siderite-rich sediments of Lake Towuti (Indonesia) using End-Member Analysis

• DOI: 10.1016/j.orggeochem.2019.05.002
• 发表时间: 2019-01
• 期刊: Organic Geochemistry
• 影响因子: 3
• 作者: Luis Ordóñez;H. Vogel;D. Sebag;D. Arizteguí;T. Adatte;J. Russell;J. Kallmeyer;A. Vuillemin;A. Friese;S. Crowe;K. Bauer;R. Simister;C. Henny;S. Nomosatryo;S. Bijaksana

Formation of diagenetic siderite in modern ferruginous sediments

现代含铁沉积物中成岩菱铁矿的形成

• DOI: 10.1130/g46100.1
• 发表时间: 2019
• 期刊: Geology
• 影响因子: 5.8
• 作者: Vuillemin;Kemnitz;Schleicher;Friese;Simister;Nomosatryo;Ordoñez;Ariztegui;Benning;Kallmeyer;Russell;Bijaksana;Towuti Drilling P
• 通讯作者: Towuti Drilling P