Physical Weathering and Abrasion in the Dry Valleys, Antarctica: Recovery and Analysis of Targets Exposed for 10 Years

9219087马林该奖项支持一项量化横贯北极山脉干旱山谷地区的物理和化学风化速率的项目。这一长期项目的最终目标是利用有关风化速率的信息来帮助阐明该地区过去的环境状况。这里提出的具体工作是收集干燥山谷10个地点和艾伦山1个地点暴露了10年的磨损目标，并收集有关场地条件的其他信息。这将导致几种不同标准材料的10年平均耐候率随每个场地的环境条件而变化。这项研究确定的风化速率将是解释用于估计冰雪复盖历史的暴露年龄日期时要考虑的一个重要参数。***

9219087 Malin This award supports a project to quantify physical and chemical weathering rates in the Dry Valleys region of the Transantarctic Mountains. The ultimate goal of this long term project is to use information about weathering rates to help elucidate past environmental conditions in this area. The specific work proposed here is to collect abrasion targets, which have been exposed for 10 years at 10 sites in the Dry Valleys and one site at the Allen Hills, and collect other information about site conditions. This will result in 10 year average weathering rates for several different standard materials as a function of environmental conditions at each site. Weathering rates determined from this study will be an important parameter to consider in interpretation of exposure age dates that are used to estimate the history of ice and snow cover. ***