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RASS是岩石分析存储系统（Rock Analysis Storage System）的缩写，STATPAC是统计学程序包（Statistical Package）的缩写。RASS和STATPAC的计算机程序被汇集到供地球化学数据管理和统计处理用的RASS-STATPAC系统中。现有形式的这个系统已被很多的美国地质调查所的地质人员、地球化学人员和其他从事各式各样的地质和地球化学研究工作的科研人员应用了九年多。这个系统的主要优点是无论在数据的查找和检索方面或者在数据统计处理方式方面均给用户以灵活性。这个系统的统计程序提供了通常用于地球化学及岩石学中的统计处理的多种类型，而且也包含有向其它统计处理和自动绘图程序系统的过渡连接。
RASS is an acronym for the Rock Analysis Storage System, and STATPAC is an abbreviation for the Statistical Package. Computer programs for RASS and STATPAC are assembled into the RASS-STATPAC system for geochemical data management and statistical processing. The current form of this system has been in use for more than nine years by many of the geophysical personnel of the United States Geological Survey, geochemists and other researchers working in a wide range of geologic and geochemical research. The main advantage of this system is that it gives the user flexibility both in the search and retrieval of data or in the way of statistical processing of data. The statistical procedures of this system provide many types of statistical processing commonly used in geochemistry and petrology and also include transitional links to other statistical processing and automated mapping program systems.