| 项目编号: | 1745739
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| 项目名称: | International Conference: The Towuti Drilling Project: Paleoenvironments, Biological Evolution, and Geomicrobiology of a Tropical Western Pacific Lake |
| 作者: | James Russell
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| 承担单位: | Brown University
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| 批准年: | 2017
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| 开始日期: | 2017-08-15
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| 结束日期: | 2018-07-31
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| 资助金额: | 24467
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| 资助来源: | US-NSF
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| 项目类别: | Standard Grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Geosciences - Earth Sciences
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| 英文关键词: | lake
; lake towuti
; indo-pacific
; tdp
; tropical western pacific
; biological evolution
; indo-pacific climate
; international workshop
; towuti drilling project
; ultramafic-hosted lake sediment
; tropical western pacific climatic change
; international research program
; indo-pacific hydrology
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| 英文摘要: | 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. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/89374
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| Appears in Collections: | 全球变化的国际研究计划
科学计划与规划
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| Recommended Citation: | |
James Russell. International Conference: The Towuti Drilling Project: Paleoenvironments, Biological Evolution, and Geomicrobiology of a Tropical Western Pacific Lake. 2017-01-01.
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