Collaborative Research: Using Chemical Weathering an Pedogenesis in Karkevagge, Northern Sweden to Investigate Local Landscape Development in a Regional Context

这项研究将提供有关瑞典北方北极山区环境表层岩石化学风化和土壤发育的全面信息。 目前的工作建立在20世纪50年代进行的一项著名研究的基础上，并将其扩展到一个新的科学调查领域，同时将在一个单一山谷进行的研究扩展到一个区域框架。该研究的岩石部分包括详细调查自然发生的地表和近地表岩石如何化学分解，以及五年前插入几种不同土壤类别的机械抛光岩石圆盘的提取和分析。土壤发育主要是化学驱动的，土壤调查将提供一个罕见的，也许是唯一的，在斯堪的纳维亚北极地区使用美国土壤分类土壤发育的看法。 这项研究提供了两个重要贡献。首先，对寒冷环境中地表的化学过程仍然知之甚少。目前的工作将对这一欠发达地区作出重大贡献。其次，气候预测表明，在可预见的未来，最剧烈的变化将发生在高纬度地区。在目前的工作中正在评估的化学信号提供了前景的气候引起的变化在地球表面的优秀指标。如果人们要在气候变化期间继续利用脆弱的北极环境，这些环境变化指标至关重要。 研究的几个方面包括尖端技术，如宇宙起源测年，还包括开发放射性碳测年的重要新测年材料。

The research will provide comprehensive information on the chemical weathering of surficial rock and on soil development in a mountainous arctic environment in northern Sweden. The present work builds on a famous study undertaken in the 1950s and extends it into a new realm of scientific investigation while simultaneously expanding research undertaken in a single valley into a regional framework. The rock portion of the study includes detailed investigation of how naturally-occurring surface and near-surface rock breaks down chemically, plus the extraction and analysis of machine-polished rock disks which were inserted into several different soil categories five years ago. Soil development is largely chemically driven, and the soilinvestigation will provide a rare, perhaps unique, view of soil development within the Scandinavian arctic using the American Soil Taxonomy. The research offers two important contributions. First, chemical processes at the landsurface in cold environments are still poorly understood. The present work will make a significant contribution to this poorly developed area. Second, climatic forecasts indicate that the most dramatic changes in the foreseeable future will be in the high latitudes. The chemical signals being evaluated in the present work afford the prospect of being excellent indicators of climatically-induced changes at the earth's surface. Such indicators of environmental change are critical if people are to continue to use fragile arctic environments during periods of climatic change. Several aspects of the research embrace cutting edge techniques such as cosmogenic dating, and also include development of what should be an important new dating material for radiocarbon dating.