instructor: Selvaraj Kandasamy
Email: selvaraj@xmu.edu.cn
Project title: Glacial-interglacial variations in biogenic silica and organic carbon accumulation rates in the eastern equatorial Indian Ocean
Project description:
Oceanic silica cycle is tightly linked with the carbon cycle, especially along the coastal and equatorial upwelling regions and other high productivity areas, on glacial-interglacial timescales. Estimation of carbon burial in the eastern equatorial Indian Ocean, in particular areas off Sumatra and Java, has been suggested to hold between 0.1% and 7.1% of the global annual carbon burial. Nonetheless, the role of biogenic silica productivity and its relation to carbon burial in this region on millennial timescale is unknown. Under this project, we will investigate biogenic silica and organic carbon in two sediment cores from the eastern equatorial Indian Ocean to understand the link between their accumulation rates and mechanisms responsible for their variations over the past 35 thousand years.
Requirement for students
Student numbers: 2
Background: Marine Geology/Marine Chemistry
Skills: hard-working and interests in learning the laboratory work
指导教师：Selvaraj Kandasamy
邮箱：selvaraj@xmu.edu.cn
项目名称：赤道东印度洋冰期-间冰期生源硅和有机碳累积速率变化
项目描述：
海洋硅循环和碳循环在冰期-间冰期时间尺度上紧密相关，且在沿岸上升流、赤道上升流及其他高生产力海域中相关性尤为明显。研究表明，赤道东印度洋的碳埋藏量，尤其是苏门答腊岛和爪哇岛以南，约占全球年均碳埋藏量的0.1%到7.1%。然而，目前人们对该海域千年尺度上生源硅生产量与碳埋藏的关系却知之甚少。本研究拟分析赤道东印度洋海域两个柱状沉积物中的生源硅与有机碳含量，试图了解两者累积速率的关系并阐释其在过去35000年的变化机制。
学生要求
数量：2名
背景：海洋地质/海洋化学
技能：努力工作，对实验室工作感兴趣
