D-07, Minnesota Precambrian Geochronology Database

Overview This Feature Service provides comprehensive geochronologic data for Precambrian rocks primarily located in Minnesota and select adjacent regions. It consists of a single feature layer named "Bedrock dates," which contains detailed published geochronological dates in point format. The data was acquired and compiled by the Minnesota Geological Survey (MGS) and includes references to scientific publications for each sampled location. Feature Layer Bedrock dates: This layer delivers geochronologic information about Precambrian bedrock samples identified by sample names and interpreted geological age, alongside dating methods applied. The dataset includes geological context such as the rock unit, province or terrane, and broader geologic system. Each point is supplemented with detailed notes, county location, and full reference citations, supporting both scientific research and resource management. Geographic Coverage The data covers Precambrian rocks within Minnesota and nearby border regions, providing critical insight into the age and distribution of Archean and Proterozoic geological units within this specific area. Use Cases Research and academic analysis of the geological history and Precambrian rock formations in Minnesota. Geological mapping and resource exploration, facilitating understanding of mineral deposit age and distribution. Educational use for teaching geochronology and regional geology. Supporting environmental and land-use planning with detailed bedrock age data. Licensing and Access There are no restrictions on the use of this data. Users are encouraged to reference the Minnesota Geological Survey when utilizing this dataset. D-07, Minnesota Precambrian Geochronology Database Download概览：本要素服务为主要分布于明尼苏达州及部分毗邻区域的前寒武纪（Precambrian）岩石提供综合地质年代学数据。其包含一个名为“基岩年代（Bedrock dates）”的单一要素图层，该图层以点要素形式存储已正式发表的详细地质年代学测定数据。本数据集由明尼苏达地质调查局（Minnesota Geological Survey, MGS）采集并汇编，每个采样点位均附带对应学术文献的引用信息。 “基岩年代（Bedrock dates）”要素图层：该图层提供前寒武纪基岩样品的地质年代学信息，样品通过采样名称与推定地质年代进行标识，同时涵盖所使用的定年方法。数据集还包含相关地质背景信息，如岩石单元、地质省或地体，以及更宏观的地质系统分类。每个点要素均补充有详细说明、所在县份信息及完整的参考文献引用，可支撑科学研究与资源管理工作。 地理覆盖范围：本数据集覆盖明尼苏达州及邻近边境区域内的前寒武纪岩石，为该区域内太古宙（Archean）与元古宙（Proterozoic）地质单元的年代与分布情况提供关键认知依据。 应用场景：可用于明尼苏达州地质历史与前寒武纪岩石构造的科研与学术分析；服务于地质填图与资源勘探工作，助力理解矿床的年代与分布规律；可作为地质年代学与区域地质学的教学辅助素材；并可依托详细的基岩年代数据，为环境与土地利用规划提供支撑。 许可与获取：本数据集的使用无任何限制，建议用户在使用该数据集时注明明尼苏达地质调查局。D-07 明尼苏达前寒武纪地质年代学数据库 下载