论文部分内容阅读
自1949年美国地调所推出G-1(花岗岩)和W-1(辉绿岩)两个最早的地质标样以来,国外已发行的地质标样有200余个。七十年代以后相继成立了一些标样研究组织。法国岩石与地球化学研究中心(CRPG)创办了《地质标样通讯》国际性杂志,地质标样的国际性学术活动也逐渐频繁起来。 我国地质标样研制工作虽起步较晚,但早在五十年代起就有研制内部标样(管理样)的经验,这为七十年代开展这项研究工作奠定了坚实的基础。我国1986年向世界公布的《国家标准物质目录》中已列有铬铁矿标样
Since the United States Geological Survey launched the earliest geological standards G-1 (granite) and W-1 (diabase) in 1949, there are over 200 geological standards issued abroad. After the seventies have set up a number of standard research organizations. The French Geosciences Research Center (CRPG) has created an international magazine of “Geological Sample Communications”, and international academic activities on geological standards have become more and more frequent. The development of geological standards in our country started late, but as early as the 1950s, we had the experience of developing internal standards (management samples), which laid a solid foundation for carrying out this research in the 1970s. Chromite samples have been listed in the “National Standard Substance List” released to the world in 1986