Arkansas geologic map data

A GIS database of geologic units and structural features in Arkansas, with lithology, age, data structure, and format written and arranged just like the other states.

View

Show in a web browser window:

[Legend for lithology colors]

Show in Google Earth or other KML viewer:

argeol.kml (Uncompressed, 7.6M)

argeol.kmz (Compressed, 2.5M)

List geologic units by state or county

Show in your GIS using OGC web services:

https://mrdata.usgs.gov/services/ar (WMS, version 1.3.0)

https://mrdata.usgs.gov/services/ar (WFS, version 1.1.0)

Use lithology_symbology.lyr ArcGIS layer file to symbolize lithology when using WFS

Download

Content	Download	Format
Geological attributes	ARcsv.zip	CSV format
Geologic units	ARgeol_dd.zip	Shapefile, polygon
Faults	ARfaults_dd.zip	Shapefile, arcs
Dikes	ARdikes_dd.zip	Shapefile, arcs
Colors for lithology	lith6_2.style	ArcMap Style [Instructions]

Documentation

Metadata:

Outline - Questions & Answers - Plain text - XML

Legend indicating the meaning of colors on the interactive map

Publication

USGS Open-File Report 2005-1351

Preliminary integrated geologic map databases for the United States: Central states: Montana, Wyoming, Colorado, New Mexico, North Dakota, South Dakota, Nebraska, Kansas, Oklahoma, Texas, Iowa, Missouri, Arkansas, and Louisiana

Methodology

Detailed report of standardization procedures

GIS style files

Methods used to create several styles for lithology or geologic time

Sources

United States Geological Survey, 2000, The Geologic map of Arkansas, Digital Version: U.S. Geological Survey.; http://cpg.cr.usgs.gov/pub/other-maps.html.