Synchronising marine and ice-core records using tephrochronology (SMART)

使用年代学同步海洋和冰芯记录 (SMART)

• 批准号: NE/F02116X/1
• 负责人: William Edward Newns Austin
• 金额: $ 12.41万
• 依托单位: University of St Andrews
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2009
• 资助国家: 英国
• 起止时间: 2009 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=NE%2FF02116X%2F1
• 关键词: Synchronising; marine; ice; core; records

The Eemian interglacial serves as the most recent analogue for understanding the natural operation of the climate system during the current interglacial. The nature and pattern of the full deglaciation cycle and the return into a glaciated Earth are, however, poorly understood due to the inherent difficulties that arise in the comparison of palaeorecords from different natural archives that span this interval. Indeed, it seems that abrupt and rapid climatic oscillations characterised this period. Yet, due to the chronological problems, an understanding of the climatic dynamics and forcing mechanisms driving these rapid events is currently unattainable. This project will employ a powerful approach in which volcanic ash layers are used to synchronise and directly compare ice-core and marine sequences. A framework of volcanic events will be established from a new Greenland ice-core that will underpin chronological models and will enable an unprecedented insight into the differing response of the atmospheric and marine systems during rapid climatic events between 140,000-70,000 years BP.

Eemian间冰期是了解当前间冰期气候系统自然运行的最新模拟。然而，由于在比较跨越这一间隔的不同自然档案的古记录时存在固有的困难，对完整的冰川消退周期和重返冰川地球的性质和模式知之甚少。事实上，这一时期的特征似乎是突然而快速的气候振荡。然而，由于年代学问题，目前还无法理解驱动这些快速事件的气候动力学和强迫机制。该项目将采用一种强大的方法，其中火山灰层用于同步和直接比较冰芯和海洋序列。将从一个新的格陵兰冰芯建立火山事件框架，该框架将支持年代模型，并将使人们能够前所未有地深入了解大气和海洋系统在140，000 - 70，000年BP之间快速气候事件期间的不同反应。

项目成果

Re-evaluation and extension of the Marine Isotope Stage 5 tephrostratigraphy of the Faroe Islands region: The cryptotephra record

法罗群岛地区海洋同位素第 5 阶段地层学的重新评估和扩展：隐石记录

• DOI: 10.1016/j.palaeo.2014.05.004
• 发表时间: 2014
• 期刊: Palaeogeography, Palaeoclimatology, Palaeoecology
• 作者: Abbott P

A North Atlantic tephrostratigraphical framework for 130-60 ka b2k: new tephra discoveries, marine-based correlations, and future challenges

130-60 ka b2k 的北大西洋火山地层框架：新的火山岩发现、基于海洋的相关性和未来的挑战

• DOI: 10.1016/j.quascirev.2014.03.024
• 发表时间: 2014
• 期刊: Quaternary Science Reviews
• 影响因子: 4
• 作者: Davies S