FEC for sailing participant on IODP Leg 318 (Wilkes Land glacial history)

为 IODP 第 318 段帆船参与者提供 FEC（威尔克斯地冰川历史）

• 批准号: NE/H025162/1
• 负责人: Tina Van De Flierdt
• 金额: $ 1.51万
• 依托单位: Imperial College London
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2010
• 资助国家: 英国
• 起止时间: 2010 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=NE%2FH025162%2F1
• 关键词: FEC; sailing; participant; IODP; Leg

Understanding the evolution and dynamics of the Antarctic cryosphere, from its inception during the Eocene-Oligocene transition (~33 Ma) through the significant periods of climate change during the Cenozoic, is not only of major scientific interest but also is of great importance for society. The transition from Greenhouse to Icehouse Earth conceivably was the most significant step in large-scale planetary change, impacting global sea level, albedo, and oceanographic and biotic evolution, among other changes. State-of-the-art climate models combined with paleoclimatic proxy data suggest that the main triggering mechanism for initial inception and development of the Antarctic glaciation was the decreasing levels of CO2 concentration in the atmosphere. With current rising atmospheric greenhouse gases resulting in rapidly rising global temperatures, studies of polar climate, and the Antarctic cryosphere behaviour in particular, are prominent on the research agenda. Drilling the Antarctic Wilkes Land margin is designed to provide a long-term record, obtained from sedimentary archives along an inshore to offshore transect, of Antarctic glaciation and its intimate relationships with global climatic and oceanographic change. Stratigraphic interpretations indicate that the Wilkes Land record will include the critical periods in Cenozoic Earth climate evolution when the cryosphere formed, likely in step-wise fashion, and subsequently evolved to assume its present-day configuration. With my research I will help to tackle some of the fundamental goals of the research expedition: 1. The study of the first layer of ice-rafted debris will tell us about the timing and nature of the first arrival of ice at the Wilkes Land margin. 2. The study of ice-rafted debris over the past 34 million years will tell us about the transition of a fluctuating early East Antarctic ice sheet into a more stable East Antarctic ice sheet. It will also shed light on the important aspect of ice stability in times of warmer climatic periods. 3. The study of the seawater chemistry in the Southern Ocean over the past 34 million years will furthermore tell us how the build-up of the Antarctic ice sheet influenced ocean chemistry in this important part of the world's ocean. Linking this back to the extent of the ice sheet, prevailing continental weathering, and productivity in the ocean, will help us develop major links in the climate system.

从始新世-渐新世过渡时期（~33 Ma）开始到新生代气候变化的重要时期，了解南极冰冻圈的演变和动力学不仅具有重大的科学意义，而且对社会也具有重要意义。可以想象，从温室到冰窖地球的转变是大规模行星变化中最重要的一步，影响了全球海平面、反照率、海洋学和生物进化，以及其他变化。最先进的气候模式结合古气候代用资料表明，南极冰川最初开始和发展的主要触发机制是大气中CO2浓度水平的下降。由于目前大气中温室气体的增加导致全球气温迅速上升，对极地气候，特别是南极冰冻圈行为的研究在研究议程上占有重要地位。钻探南极威尔克斯陆缘的目的是提供南极冰川及其与全球气候和海洋变化的密切关系的长期记录，这些记录是从沿近海样带的沉积档案中获得的。地层学解释表明，威尔克斯地记录将包括新生代地球气候演化的关键时期，当冰冻圈形成时，可能是逐步形成的，随后演变成今天的形态。通过我的研究，我将帮助解决研究考察的一些基本目标：对第一层浮冰碎片的研究将告诉我们冰第一次到达威尔克斯陆缘的时间和性质。2. 对过去3400万年的浮冰碎片的研究将告诉我们波动的早期南极东部冰盖向更稳定的南极东部冰盖的转变。它还将阐明在气候变暖时期冰稳定性的重要方面。3. 对过去3400万年南大洋海水化学的研究将进一步告诉我们，南极冰盖的形成如何影响了世界海洋这一重要部分的海洋化学。将此与冰盖的范围、普遍的大陆风化和海洋生产力联系起来，将有助于我们在气候系统中建立主要联系。

项目成果

Wilkes Land Glacial History, Proceedings of the Integrated Ocean Drilling Program

威尔克斯陆地冰川历史，综合海洋钻探计划论文集

• 发表时间: 2011
• 作者: Escutia C

Pliocene deglacial event timelines and the biogeochemical response offshore Wilkes Subglacial Basin, East Antarctica

• DOI: 10.1016/j.epsl.2018.04.054
• 发表时间: 2018-07-15
• 期刊: EARTH AND PLANETARY SCIENCE LETTERS
• 影响因子: 5.3
• 作者: Bertram, Rachel A.;Wilson, David J.;Riesselman, Christina R.
• 通讯作者: Riesselman, Christina R.

Geochemical evidence for intermediate water circulation in the westernmost Mediterranean over the last 20kyrBP and its impact on the Mediterranean Outflow

过去 20kyrBP 地中海最西端中间水循环的地球化学证据及其对地中海流出的影响

• DOI: 10.1016/j.gloplacha.2015.10.001
• 发表时间: 2015
• 期刊: Global and Planetary Change
• 影响因子: 3.9
• 作者: Jiménez-Espejo F

Robustness of fossil fish teeth for seawater neodymium isotope reconstructions under variable redox conditions in an ancient shallow marine setting

古代浅海环境中可变氧化还原条件下用于海水钕同位素重建的化石鱼牙的鲁棒性

• DOI: 10.1002/2015gc006218
• 发表时间: 2016
• 期刊: Geochemistry, Geophysics, Geosystems
• 作者: Huck C

Glacial erosion of East Antarctica in the Pliocene: A comparative study of multiple marine sediment provenance tracers

• DOI: 10.1016/j.chemgeo.2017.06.011
• 发表时间: 2017-09
• 期刊: Chemical Geology
• 影响因子: 3.9
• 作者: C. Cook;S. Hemming;T. Flierdt;Elizabeth Pierce Davis;T. Williams;A. L. Galindo;F. Jiménez-Espejo;C. Escutia