Mineral Occurrence data for the Eocene Green River Formation in the Piceance and Uinta Basins

This legacy database lists occurrences of minerals identified in the Green River Formation in the Uinta and Piceance Basins, Utah and Colorado using X-ray diffraction (XRD). The database was compiled from data collected by the U.S. Geological Survey (USGS) and former U.S. Bureau of Mines (USBM). The database includes 1200 samples from 14 cores in the Uinta Basin and 9443 samples from 30 cores in the Piceance Basin; within that dataset over 40 mineral phases are represented between the two basins. Quartz, dolomite, and feldspars are the most common minerals. For nearly a century, these two agencies conducted extensive research on the oil shale deposits of the Eocene Green River Formation, Utah, Colorado, and Wyoming. Beginning in the early 1950s, this research included XRD mineral identification analysis from core and cuttings samples taken to assess oil shale resources.

本遗留数据库收录了美国犹他州与科罗拉多州尤因塔盆地（Uinta Basin）、皮斯安斯盆地（Piceance Basin）内格林河组（Green River Formation）经X射线衍射（X-ray diffraction, XRD）技术鉴定的矿物产出记录。本数据库的数据源自美国地质调查局（U.S. Geological Survey, USGS）与原美国矿务局（U.S. Bureau of Mines, USBM）采集的资料。该数据库包含尤因塔盆地14个岩心的1200件样品，以及皮斯安斯盆地30个岩心的9443件样品；两个盆地的数据集共涵盖超过40种矿物相。石英、白云石与长石为该数据集内最常见的矿物。近一个世纪以来，这两家机构对犹他州、科罗拉多州与怀俄明州始新统格林河组的油页岩矿床开展了大量研究。自20世纪50年代初起，该项研究纳入了为评估油页岩资源而采集的岩心与岩屑样品的XRD矿物鉴定分析工作。