D-06, Minnesota Bedrock Structural Database

Overview This feature service provides detailed structural geology information specific to the bedrock of Minnesota. It contains precise measurements of various geological structures such as bedding, cleavage, foliation, and lineation collected from bedrock outcrops across the state. The data also includes cartographic representations aligned with the Federal Geographic Data Committee (FGDC) Digital Cartographic Standard for Geologic Map Symbolization. Feature Layers Minnesota Structure Data Points: This layer features geospatial points detailing structural geological measurements. It includes types of structures such as faults, folds, joints, dikes, veins, and a variety of foliations and lineations. Each data point is enriched with attributes like orientation, confidence level, geologist notes, data source references, and symbols that adhere to specific classification rules. The structural types and their orientations are captured to support in-depth geological analysis and mapping. Geographic Coverage The dataset encompasses the state of Minnesota, captured within spatial reference system 26915, representing a comprehensive coverage of bedrock structural features in this region. Use and Significance This service is valuable for geologists and researchers engaged in bedrock structural analysis and geological mapping within Minnesota. It supports educational and professional studies of geological formations, contributing to resource exploration, geotechnical engineering, and environmental assessments. The standardized data coding and symbolization facilitate integration and usage within GIS software for cartographic and analytical purposes. Data Source and Quality The data compilation results from field measurements accumulated over decades, incorporating observations from both direct field studies and transcriptions from published and unpublished analog maps, ensuring a robust and comprehensive dataset. Minnesota Bedrock Structure Database Download (MapPackage) Minnesota Bedrock Structure Database Download (feature layer)概述 本要素服务（feature service）提供针对明尼苏达州基岩的详细构造地质学信息。数据集包含从全州基岩露头采集的各类地质构造的精准测量数据，涵盖层理（bedding）、劈理（cleavage）、面理（foliation）与线理（lineation）等构造类型。同时，数据附带符合联邦地理数据委员会（Federal Geographic Data Committee, FGDC）《地质图符号化数字制图标准》的制图表达规范。 要素图层 明尼苏达州构造数据点：该图层包含详细记录构造地质测量数据的地理空间点（geospatial points），涵盖断层（faults）、褶皱（folds）、节理（joints）、岩墙（dikes）、岩脉（veins）以及多种面理与线理构造。每个数据点均附带丰富属性，包括产状、置信度、地质人员备注、数据源参考文献以及符合特定分类规则的符号。本图层记录构造类型及其产状，可支撑深入的地质分析与制图工作。 地理覆盖范围 本数据集覆盖明尼苏达州全域，采用空间参考系26915进行坐标定义，完整呈现该区域内基岩构造特征的分布情况。 应用价值与意义 本服务对从事明尼苏达州基岩构造分析与地质制图的地质学家及研究人员具有重要价值。它可为地质构造的教学与专业研究提供支持，助力资源勘探、岩土工程（geotechnical engineering）与环境评估（environmental assessments）工作。标准化的数据编码与符号化规则可方便其在地理信息系统（Geographic Information System, GIS）软件中集成与使用，用于制图与分析场景。 数据源与数据质量 本数据集基于数十年积累的野外测量数据编制，整合了直接野外考察观测结果，以及已出版与未出版的模拟地图转录数据，确保数据集详实全面。 明尼苏达州基岩构造数据库下载（地图包） 明尼苏达州基岩构造数据库下载（要素图层）