Acquisition of Equipment for Cosmogenic Nuclide Sample Preparation

这笔赠款提供部分支持，用于装备加州大学伯克利分校的宇宙源核素样品制备设施。詹姆斯·基什内尔教授和威廉·迪特里希教授将是这一设施的主要用户。地球和行星科学部最近翻新和升级了一个46平方米(500平方英尺)的实验室，用于制备宇宙源核素样品。这笔赠款为该实验室提供了装备，以便有效地从地质材料中制备10Be和26Al样品。根据这笔赠款将购买的设备包括原子吸收光谱仪、高通量磁选机、超纯水供应、超声波浴、精密天平和离心机。专用的宇宙源核素样品制备设施将允许更有效的样品制备，从而提高样品吞吐速度。反过来，这将极大地帮助正在进行的几个领域的研究，包括测量河床侵蚀和泥石流切割，确定流域规模的化学风化速率，比较长期和当今的景观侵蚀速率，以及评估气候、地形和构造因素如何影响长期风化和侵蚀速率。

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.***