Stillwater Complex, Montana?logs of core drilled by Stillwater Mining Company and Anaconda Copper Corp. in the Stillwater Mine area, 1983 to 1989

This dataset includes TIFF (Tagged Image File Format) images of graphic drill core logs showing associated drill core information, a TIFF image of the explanation for the lithology and structure sections of the logs, an Esri shapefile of the locations of the drill holes, and 12 .csv files of tabular data that were compiled from handwritten drill core logs. The drill core is from the Stillwater Mine area of the Stillwater Complex, Montana and was drilled from 1983 to 1989 by the Stillwater Mining Company and Anaconda Copper Corp. The data shown in the graphic drill logs and contained within the .csv files includes lithologic, structure, percent recovery, grain size, sulfide, nickel, copper, platinum, and palladium mineralization information. The graphic drill logs were created using Golden software's Strater 5 drill core visualization software and are provided with both logarithmic and linear scales where applicable. The graphic drill logs are plotted using the depth recorded in the drill logs and do not reflect stratigraphic true thickness. All instances of question marks ("?") represent original data as written by the geologist. In areas where the hand-written notes were unreadable, the notation of "[unreadable]" was used. See USGS SIR 2014-5183 (https://pubs.usgs.gov/sir/2014/5183/) for report and spatial data relating to the Stillwater Complex.

本数据集包含四类资料：一是标注有相关钻探岩心信息的图形化钻探岩心日志的TIFF（Tagged Image File Format，标签图像文件格式）图像；二是用于说明该日志岩性与构造剖面的TIFF图像；三是记录钻孔空间位置的Esri形状文件（shapefile）；以及12份由手写钻探岩心日志整理得到的表格数据CSV文件。该钻探岩心采自美国蒙大拿州斯蒂尔沃特杂岩体的斯蒂尔沃特矿区，由斯蒂尔沃特矿业公司（Stillwater Mining Company）与阿纳康达铜业公司（Anaconda Copper Corp）于1983年至1989年间完成钻探。图形化钻探岩心日志及CSV文件中涵盖的信息包括岩性、构造、回收率百分比、粒度、硫化物、镍、铜、铂及钯矿化相关数据。本套图形化钻探岩心日志采用Golden软件公司的Strater 5钻探岩心可视化软件制作，可根据适用场景提供对数刻度与线性刻度两种显示形式。日志以钻探日志记录的深度为基准绘制，未反映地层的真厚度。所有问号（"?"）均保留了原始地质学家手写记录的样式；在手写注释无法辨认的区域，使用了"[unreadable]"作为标注。如需查阅与斯蒂尔沃特杂岩体相关的报告及空间数据，请参阅美国地质调查局（United States Geological Survey, USGS）SIR 2014-5183（https://pubs.usgs.gov/sir/2014/5183/）。