Quantification and geochemical characterization of total mass fluxes in river catchments of the Rhenish Massif and the Black Forest, Germany

德国莱尼什地块和黑森林河流流域总质量通量的量化和地球化学特征

• 批准号: 31414553
• 负责人: Professor Dr. Ralf Hetzel
• 金额: --
• 依托单位: Institut für Geologie und Paläontologie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2006
• 资助国家: 德国
• 起止时间: 2005-12-31 至 2008-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/31414553?language=en
• 关键词: Quantification; geochemical; characterization; total; mass

We aim to determine long-term erosion rates as well as recent mass fluxes including their geochemical and stable isotope signatures in four selected catchments of the Rhenish Massif and the Black Forest (Germany). Spatially-averaged erosion rates integrated over the Holocene/Late Pleistocene will be derived from the 10Be concentration of quartz in river sediments from the different subbasins of each catchment. Recent mass fluxes out of these catchments will be determined from run-off data and the geochemical (main and trace elements) signatures of dissolved and suspended river loads. These will be corrected for organic, atmospheric, and anthropogenic inputs using the stable isotopic signatures of water and dissolved loads (H, C, O, S). The geochemical investigations will be complemented by a geomorphologic analysis to define geomorphic parameters such as relief and slope distribution for each of the sampled subbasins. Our investigations will yield erosion rates on different timescales (a few years and ~104 years) and will provide quantitative constraints on the Late Quaternary denudation of mountain ranges typical of central Europe.

我们旨在确定长期侵蚀率以及最近的质量通量，包括其在莱茵河地块和黑森林（德国）的四个选定集水区中的地球化学和稳定同位素特征。在全新世/晚更新世上整合的空间平均侵蚀率将来自每个集水区的不同subbasins中的河流沉积物中的10BE浓度。这些集水区的最新质量通量将从径流数据以及溶解和悬浮的河流负载的地球化学（主要和微量元素）特征确定。这些将使用稳定的水和溶解载荷（H，C，O，S）的稳定同位素特征来纠正有机，大气和人为输入。地球学分析将补充化学研究，以定义每种采样subbasins的浮雕和斜率分布等地貌参数。我们的调查将对不同的时间尺度（几年且约104年）产生侵蚀率，并将对中欧典型的山脉的第四纪晚期剥离提供定量限制。

项目成果

The role of supergene sulphuric acid during weathering in small river catchments in low mountain ranges of Central Europe: Implications for calculating the atmospheric CO2 budget

• DOI: 10.1016/j.chemgeo.2009.07.007
• 发表时间: 2009-10
• 期刊: Chemical Geology
• 影响因子: 3.9
• 作者: H. Meyer;H. Strauss;R. Hetzel

Erosion rates on different timescales derived from cosmogenic 10Be and river loads: implications for landscape evolution in the Rhenish Massif, Germany

• DOI: 10.1007/s00531-008-0388-y
• 发表时间: 2010-03
• 期刊: International Journal of Earth Sciences
• 影响因子: 2.3
• 作者: H. Meyer;R. Hetzel;H. Strauss