Map Database for Surficial Materials in the Conterminous United States
Data Series
425
Links
- More information: USGS Index Page (html)
- Download citation as: RIS | Dublin Core
Abstract
The Earth's bedrock is overlain in many places by a loosely compacted and mostly unconsolidated blanket of sediments in which soils commonly are developed. These sediments generally were eroded from underlying rock, and then were transported and deposited. In places, they exceed 1000 ft (330 m) in thickness. Where the sediment blanket is absent, bedrock is either exposed or has been weathered to produce a residual soil. For the conterminous United States, a map by Soller and Reheis (2004, scale 1:5,000,000; http://pubs.usgs.gov/of/2003/of03-275/) shows these sediments and the weathered, residual material; for ease of discussion, these are referred to as 'surficial materials'. That map was produced as a PDF file, from an Adobe Illustrator-formatted version of the provisional GIS database. The provisional GIS files were further processed without modifying the content of the published map, and are here published.
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Map Database for Surficial Materials in the Conterminous United States |
| Series title | Data Series |
| Series number | 425 |
| DOI | 10.3133/ds425 |
| Edition | Version 1.0 |
| Year Published | 2009 |
| Language | ENGLISH |
| Publisher | U.S. Geological Survey |
| Contributing office(s) | Eastern Earth Surface Processes |
| Description | Report: 12 p.; ReadMe; Metadata; GIS Data |
| Scale | 5000000 |
| Online Only (Y/N) | Y |
| Additional Online Files (Y/N) | Y |
| Google Analytic Metrics | Metrics page |