Eolianite-Paleosol-Sequences in Fuerteventura and Central Spain -Stadial-Interstadial shifts and climatic differences

富埃特文图拉岛和西班牙中部的风尘石-古土壤层序 - 场间-场间变化和气候差异

• 批准号: 251036752
• 负责人: Professor Dr. Dominik Faust
• 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: 2014
• 资助国家: 德国
• 起止时间: 2013-12-31 至 2017-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/251036752?language=en
• 关键词: Eolianite; Paleosol; Sequences; Fuerteventura; Central

Two already by DFG funded projects about dune-paleosol-sequences in Fuerteventura and about Loess-Paleosol-sequences in Central Spain provided basic knowledge for the understanding of both systems. Dune-paleosol-sequences of Fuerteventura seem to deliver detailed information concerning the last glacial-interglacial-cycle. In Central Spain we detected for the first time mighty loess sequences with intercalated paleosols of more than 8 meters that are sampled and analyzed. Preliminary results show that these loess-paleosol-sequences have been formed during the last glacial and that detailed datings are still missing. One aim is to deliver a high resolution chronology over the last 150 ka. In Fuerteventura our results show that dune-paleosol sequences have been formed as well during the last glacial, however reaching more back in time. Therefore we see a good potential for both settings to clear up in more detail and for the first time stadial-interstadial shifts during the last glacial in terms of paleoenvironment and paleoclimate. A more precise chronological resolution is one big challenge of this project as we tend to test new luminescence approaches for reaching in older time slices especially in Fuerteventura. Quarz grains of the loess sediment in Central Spain provide good luminescence behavior that will help to improve the chronological precision. In this project we aim to reconstruct paleoenvironmental and climate change during stadial and interstadial times of the last glacial with special emphasize on high chronological resolution. The comparison of both settings will help to understand climatic gradients from Central Spain to the Canary Islands during the last glacial. Our preliminary results suggest that during the last glacial Fuerteventura underwent more humid conditions whereas Central Spain seems to have passed more arid conditions at the same time. The comparison of both settings in terms of paleoenvironmental and climate change during stadial and interstadial phases will widen our knowledge about relevant climatic parameters and their morphodynamic effects.

DFG 已经资助了两个关于富埃特文图拉岛沙丘古土壤层序和西班牙中部黄土古土壤层序的项目，为理解这两个系统提供了基础知识。富埃特文图拉岛的沙丘-古土壤序列似乎提供了有关末次冰期-间冰期周期的详细信息。在西班牙中部，我们首次发现了巨大的黄土序列，其中夹层古土壤超过 8 米，并进行了采样和分析。初步结果表明，这些黄土-古土壤序列是在末次冰期期间形成的，但详细的年代测定仍然缺失。一个目标是提供过去 150 ka 的高分辨率年表。在富埃特文图拉岛，我们的结果表明，沙丘-古土壤序列也在末次冰期期间形成，但时间更早。因此，我们认为这两种背景都有很大的潜力，可以更详细地阐明，并且在末次冰期期间，在古环境和古气候方面首次出现场间变化。更精确的时间分辨率是该项目的一大挑战，因为我们倾向于测试新的发光方法以达到较旧的时间片，特别是在富埃特文图拉岛。西班牙中部黄土沉积物的石英颗粒具有良好的发光行为，有助于提高年代精度。在这个项目中，我们的目标是重建末次冰河时期的古环境和气候变化，特别强调高年代分辨率。两种环境的比较将有助于了解末次冰期期间从西班牙中部到加那利群岛的气候梯度。我们的初步结果表明，在末次冰期期间，富埃特文图拉岛经历了更加潮湿的条件，而西班牙中部似乎同时经历了更加干旱的条件。对斯塔期和间期阶段的古环境和气候变化进行比较将扩大我们对相关气候参数及其形态动力学影响的认识。

项目成果

Leaf waxes from aeolianite–paleosol sequences on Fuerteventura and their potential for paleoenvironmental and climate reconstructions in the arid subtropics

富埃特文图拉岛风尘石古土壤序列的叶蜡及其在干旱亚热带古环境和气候重建中的潜力

• DOI: 10.5194/egqsj-66-109-2018
• 发表时间: 2018
• 期刊: EG Quaternary Science Journal
• 作者: Struck;Roettig
• 通讯作者: Roettig

Granulometrical, mineralogical and geochemical characterization of loess deposits in the Tajo Basin

• DOI: 10.1016/j.quaint.2015.11.122
• 发表时间: 2016-07
• 期刊: Quaternary International
• 影响因子: 2.2
• 作者: F. Calvo;Jesús Sánchez;A. Acosta;D. Wolf;D. Faust

Identification of Saharan dust particles in Pleistocene dune sand- paleosol sequences of Fuerteventura (Canary Islands)

富埃特文图拉岛（加那利群岛）更新世沙丘沙古土壤序列中撒哈拉尘埃颗粒的识别

• DOI: 10.15201/hungeobull.67.2.2
• 发表时间: 2018
• 期刊: Hungarian Geographical Bulletin
• 作者: Roettig

Origins and genesis of loess deposits in central Spain, as indicated by heavy mineral compositions and grain‐size variability

• DOI: 10.1111/sed.12539
• 发表时间: 2018-12
• 期刊: Sedimentology
• 影响因子: 3.5
• 作者: D. Wolf;K. Ryborz;T. Kolb;Ruben Calvo Zapata;J. Sanchez Vizcaino;L. Zöller;D. Faust

Characteristics, nature, and formation of palaeosurfaces within dunes on Fuerteventura

富埃特文图拉岛沙丘内古地表的特征、性质和形成

• DOI: 10.1017/qua.2018.52
• 发表时间: 2018
• 期刊: Quaternary Research
• 影响因子: 2.3
• 作者: Roettig;Makowsky;Recio Espejo;Zöller
• 通讯作者: Zöller