Acquisition of Equipment for Cosmogenic Nuclide Sample Preparation

购置宇宙成因核素样品制备设备

• 批准号: 0004098
• 负责人: James Kirchner
• 金额: $ 5.38万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-04-15 至 2004-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0004098&HistoricalAwards=false
• 关键词: Acquisition; Equipment; Cosmogenic; Nuclide; Sample

0004098KirchnerThis grant provides partial support to equip a cosmogenic nuclide sample preparation facility at the University of California, Berkeley. Professors James Kirchner and William Dietrich will be the principal users of this facility. The Department of Earth and Planetary Science has recently renovated and upgraded a 46 square meter (500 square foot) laboratory for cosmogenic nuclide sample preparation. This grant provides funds to outfit this laboratory for efficient preparation of 10Be and 26Al samples from geological materials. Equipment to be purchased under this grant includes an atomic absorption spectrophotometer, a high-throughput magnetic separator, an ultrapure water supply, ultrasonic baths, precision balances, and a centrifuge. A dedicated cosmogenic nuclide sample preparation facility will permit more efficient sample preparation, and thus higher sample throughput rates. This, in turn, will greatly aid ongoing research in several areas, including measurements of river bed erosion and debris flow incision, determination of catchment-scale chemical weathering rates, comparisons of long-term and present-day landscape erosion rates, and assessments of how climatic, topographic, and tectonic factors affect long-term rates of weathering and erosion.***

0004098基什内尔这笔赠款提供了部分支持，以装备在加州大学伯克利分校的宇宙成因核素样品制备设施。 詹姆斯·基什内尔教授和威廉·迪特里希教授将是该设施的主要用户。 地球和行星科学系最近翻新和升级了一个46平方米（500平方英尺）的宇宙成因核素样品制备实验室。 该赠款提供资金，以装备该实验室，从地质材料中有效制备10 Be和26 Al样品。 根据这项赠款购买的设备包括原子吸收分光光度计，高通量磁分离器，超纯水供应，超声波浴，精密天平和离心机。 一个专门的宇宙成因核素样品制备设施将能够更有效地进行样品制备，从而提高样品处理率。 反过来，这将极大地帮助在几个领域正在进行的研究，包括河床侵蚀和泥石流切割的测量，流域尺度化学风化率的测定，长期和现代景观侵蚀率的比较，以及气候，地形和构造因素如何影响长期风化和侵蚀率的评估。