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The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States

Data Series 1052
By: , , and 
https://doi.org/10.3133/ds1052

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Abstract

The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States (https://doi. org/10.5066/F7WH2N65) represents a seamless, spatial database of 48 State geologic maps that range from 1:50,000 to 1:1,000,000 scale. A national digital geologic map database is essential in interpreting other datasets that support numerous types of national-scale studies and assessments, such as those that provide geochemistry, remote sensing, or geophysical data. The SGMC is a compilation of the individual U.S. Geological Survey releases of the Preliminary Integrated Geologic Map Databases for the United States. The SGMC geodatabase also contains updated data for seven States and seven entirely new State geologic maps that have been added since the preliminary databases were published. Numerous errors have been corrected and enhancements added to the preliminary datasets using thorough quality assurance/quality control procedures. The SGMC is not a truly integrated geologic map database because geologic units have not been reconciled across State boundaries. However, the geologic data contained in each State geologic map have been standardized to allow spatial analyses of lithology, age, and stratigraphy at a national scale.

Suggested Citation

Horton, J.D., San Juan, C.A., and Stoeser, D.B., 2017, The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States (ver. 1.1, August 2017): U.S. Geological Survey Data Series 1052, 46 p., https://doi.org/10.3133/ds1052.

ISSN: 2327-638X (online)

Study Area

Table of Contents

  • Acknowledgments
  • Abstract
  • Introduction
  • State Geologic Map Compilation Geodatabase Structure
  • Using the Data
  • General Procedures
  • National-Scale Database Integration
  • Enhancements Made to the State Geologic Map Compilation
  • Summary
  • References Cited
  • Appendix 1. State Geologic Maps Bibliography
  • Appendix 2. State Geologic Map Compilation Attribute Field Definitions for All Feature Classes and Tables
  • Appendix 3. Age Table Data Dictionary
  • Appendix 4. LITH1–LITH5 (Lithology Table) Data Dictionary
  • Appendix 5. DESCRIPTION (SGMC_Structure Feature Class) Data Dictionary
  • Appendix 6. LITH_FORM (Lithology Table) Data Dictionary
  • Appendix 7. Geologic Age Symbols (SGMC_LABEL in Units Table) Data Dictionary
  • Appendix 8. GENERALIZED_LITH (SGMC_Geology Feature Class) Data Dictionary
  • Appendix 9. State Abbreviations
Publication type Report
Publication Subtype USGS Numbered Series
Title The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States
Series title Data Series
Series number 1052
DOI 10.3133/ds1052
Edition Version 1.0: Originally posted on June 30, 2017; Version 1.1: August 2017
Year Published 2017
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Central Mineral and Environmental Resources Science Center
Description Report: v, 46 p.; Appendixes 1-9; Data Release
Country United States
Online Only (Y/N) Y
Google Analytic Metrics Metrics page
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