Terrestrial system response to North Atlantic climate oscillations during the last glacial cycle: high resolution loess-palaeosol sequences from Remagen-Schwalbenberg (Middle Rhine Valley, Germany) - TerraClime

末次冰川周期期间陆地系统对北大西洋气候振荡的响应：来自雷马根-施瓦尔本贝格（德国中莱茵河谷）的高分辨率黄土-古土壤序列 - TerraClime

• 批准号: 337232800
• 负责人: Dr. Peter Fischer
• 金额: --
• 依托单位: Lehrstuhl für Geomorphologie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2017
• 资助国家: 德国
• 起止时间: 2016-12-31 至 2020-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/337232800?language=en
• 关键词: Terrestrial; system; response; North; Atlantic

Our understanding of climate variability and forcing during the Quaternary is largely derived from marine and ice core records. The response of terrestrial systems to climate change through time, by contrast, remains poorly defined. Nevertheless, understanding landscape response to climate variability is of critical importance: not only because we as people live on and interact with the land, but also because land interacts differently with the atmosphere than do the oceans and ice sheets. Consequently we must investigate the nature of feedbacks and forcings between terrestrial and atmospheric systems.The TERRACLIME project will investigate terrestrial system response to northern hemisphere climate change during the last glacial cycle (LGC), based on novel loess-palaeosol sequences (LPS) from Remagen-Schwalbenberg (Middle Rhine Valley, Germany). Pilot core REM 3A, conducted during preparatory studies, yields the thickest and most complete sequence of landscape response to palaeoclimate in Central and Western Europe, spanning much of the LGC. The records of profiles and cores from earlier studies were not as long and complete as the new core, and they lacked high resolution palaeoclimate reconstruction using state of the art methods now available, as well as reliable high resolution chronological frameworks.Systematic geophysical prospection of the Schwalbenberg area will be the base to identify the thickest deposits for a further key core and several screening cores. The TERRACLIME research design will yield an understanding of loess response to climate based on the catena principle; variabilities between different (key and screening) cores will enable us to decouple local, regional and supra-regional processes acting on the deposits and to elucidate the nature of loess deposition and formation in three dimensions.TERRACLIME will combine established methods (sedimentology, mineralogy and environmental magnetism) with recently developed proxy approaches (inorganic and stable isotope geochemistry, and biomarker analyses). LPS core analyses will provide data on past climatic conditions, sedimentation and post-sedimentary alteration processes, and vegetation history. Geochemical data generated will furthermore be used to investigate possible shifts in sediment source areas through time.Pivotal to the project is high resolution luminescence dating to establish a reliable and independent age model for the Schwalbenberg sequences. The resulting age model, based on paired quartz OSL and polymineral pIR-IRSL dating, will facilitate direct comparison of the new Schwalbenberg LPS with regional and global palaeoclimate archives to elucidate terrestrial response to North Atlantic climate oscillations during the LGC. Synchronicity or lags between the age models from the different archives will further improve our understanding of the links between marine, ice core and terrestrial recorders of climate change in the northern hemisphere over the LGC.

我们对第二季学期间气候变异性和强迫的理解主要来自海洋和冰核记录。相比之下，陆地系统对随时间变化的气候变化的响应仍然很差。然而，了解景观对气候变化的反应至关重要：不仅是因为我们作为人们居住并与土地互动，而且还因为土地与气氛的相互作用与海洋和冰盖不同。因此，我们必须调查陆地和大气系统之间反馈和强迫的性质。磨石项目将根据新的loess-palaeosol序列（LPS）调查陆生系统对北半球气候变化（LGC）期间对北半球气候变化的反应-Schwalbenberg（德国中部莱茵河谷）。在预备研究中进行的飞行员核心REM 3A产生了跨越大部分LGC的对古气候的最厚，最完整的景观响应序列。早期研究的概况和核心记录不如新核心那样长，并且没有使用现已可用的最新方法的高分辨率古气候重建，并且缺乏可靠的高分辨率时间框架。 Schwalbenberg地区将是识别最厚的矿芯和几个筛选核心的最厚的沉积物。 Terraclime研究设计将根据CATENA原理对对气候的反应产生理解。不同（密钥和筛选）核心之间的变异能力将使我们能够将作​​用于沉积物上的本地，区域和上区域过程解脱，并在三个维度中阐明黄土沉积和形成的性质。Terraclime将结合既定的方法（Satementology，矿物学，矿物学和矿物学，矿物学和矿物学，矿物学和矿物学，矿物学和矿物学，矿物学和矿物学）环境磁性）采用最近开发的替代方法（无机和稳定的同位素地球化学和生物标志物分析）。 LPS核心分析将提供有关过去气候条件，沉积和沉积后变化过程以及植被历史的数据。生成的地球化学数据还将用于研究沉积物源区域的可能变化。最终的年龄模型基于配对的石英OSL和PORYMINALE PIR-IRSL约会，将有助于直接比较新的Schwalbenberg LPS与区域和全球古气候档案馆，以阐明LGC期间对北大西洋气候振荡的地面反应。来自不同档案的年龄模型之间的同步性或滞后将进一步提高我们对LGC上北半球气候变化的海洋，冰核与陆地录音机之间的联系的理解。

项目成果

Combining Inorganic and Organic Carbon Stable Isotope Signatures in the Schwalbenberg Loess-Palaeosol-Sequence Near Remagen (Middle Rhine Valley, Germany)

雷马根附近施瓦尔本贝格黄土-古土壤序列中无机和有机碳稳定同位素特征的结合（德国中莱茵河谷）

• DOI: 10.3389/feart.2020.00276
• 发表时间: 2020
• 作者: Vinnepand;Fischer;Fitzsimmons;Thornton;Fiedler
• 通讯作者: Fiedler

Luminescence Sensitivity of Rhine Valley Loess: Indicators of Source Variability?

• DOI: 10.3390/quat5010001
• 发表时间: 2021-12
• 期刊: Quaternary
• 影响因子: 2.3
• 作者: K. Fitzsimmons;Zoran M. Perić;Maike Nowatzki;S. Lindauer;M. Vinnepand;C. Prud’homme;A. K. Dave

Millennial-scale terrestrial ecosystem responses to Upper Pleistocene climatic changes: 4D-reconstruction of the Schwalbenberg Loess-Palaeosol-Sequence (Middle Rhine Valley, Germany)

• DOI: 10.1016/j.catena.2020.104913
• 发表时间: 2021-01-01
• 期刊: CATENA
• 影响因子: 6.2
• 作者: Fischer, Peter;Joeris, Olaf;Voett, Andreas
• 通讯作者: Voett, Andreas