RUI: Acquisition of a Rapid Sediment Grain Size Analyzer

0318511Kirby这笔赠款支持在加州州立大学富勒顿的地质部购买一台基于激光衍射的自动化粒度分析仪。该粒度分析仪由马尔文仪器公司生产，由可变波长激光光源的光学工作台、大体积样品分散池、用于控制的PC计算机和用于数据分析的软件组成。该仪器将支持区域教职员工和学生在古岩溶学/古气候学方面的研究。湖泊沉积物的粒度分析有助于解释沉积的水动力、局部构造和区域古气候条件。该仪器将立即用于教师和本科生对美国西南部以碎屑为主的湖泊的调查，并将产生对了解这一人口稠密和半干旱地区的第四纪和全新世气候动力学具有特别重要意义的替代数据。

0318511KirbyThis grant supports the acquisition of a laser diffraction-based automated grain size analyzer in the Geology Department at Cal State Fullerton. The grain size analyzer, manufactured by Malvern Instruments, Inc., consists of an optical bench with variable wavelength laser light sources, a large volume sample dispersion cell, a PC computer for control, and software for data analysis. The instrument will support regional faculty and student research in paleolimnology/paleoclimatology. Grain size analysis of lake sediments helps to interpret the hydrodynamic, local tectonic, and regional paleoclimate conditions under which the sediments were deposited. The instrument will find immediate use for faculty and undergraduate student investigations of clastic-dominated lakes of the southwest U.S. and will yield proxy data of particular significance to understanding Quaternary and Holocene climate dynamics in this populated and semi-arid region.***