|
Boundaries and Tags for Major Geologic Units in the United States
Entry ID:
UTC_majorgeologicunits
Summary
Abstract:
This data set contains boundaries and tags for major geologic units in the
conterminous United States. In addition to the polygons representing the areal extent of geologic units, it identifies boundaries of metamorphic provinces, major faults, calderas, impact structures, and the limits of continental glaciation. The data depict the geology of the bedrock that lies at or near the land surface, ... ![]()
Related URL
Geographic Coverage
(Click for Interactive Map)
Spatial coordinates
Data Set Citation
Dataset Originator/Creator:
John C. Reed, Jr.,Charles A. Bush
Dataset Title:
Boundaries and Tags for Major Geologic Units in the United States
Dataset Release Date:
2001
Dataset Release Place:
Denver, Colorado
Dataset Publisher:
U.S. Geological Survey
Data Presentation Form:
map
Online Resource:
http://pubs.usgs.gov/atlas/geologic/
Temporal Coverage
Start Date:
1998-03-01
Stop Date:
1999-06-01
Location Keywords
Science Keywords
ISO Topic Category
Quality
The line attributes were manually checked by assigning unique line types to the
values and then plotting the data. The plots were then compared to the source. The polygon attributes were checked by visually comparing the final colored plots to maps at various larger scales. Polygon and node topology are present. All polygons are ... ![]()
Access Constraints
None
Use Constraints
None. Acknowledgment of the National Atlas of the United States of America and
(or) the U.S. Geological Survey would be appreciated in products derived from these data. Data Set Progress
COMPLETE
Data Center
Distribution
Distribution Media:
Online
Fees:
No fees
Personnel
Extended Metadata Properties
(Click to view more)
Creation and Review Dates
DIF Creation Date:
2003-03-26
Last DIF Revision Date:
2012-12-21
Future DIF Review Date:
2004-03-26
|
|||||||||||||||||





