INTRODUCTION The USGS
is creating an integrated national database for digital state geologic
maps that includes stratigraphic, age, and lithologic information. The
majority of the conterminous 48 states have digital geologic base maps
available, often at scales of 1:500,000. This product is a prototype,
and is intended to demonstrate the types of derivative maps that will
be possible with the national integrated database. This database permits
the creation of a number of types of maps via simple or sophisticated
queries, maps that may be useful in a number of areas, including mineral-resource
assessment, environmental assessment, and regional tectonic evolution. This database
is distributed with three main parts: a Microsoft Access 2000 database
containing geologic map attribute data, an Arc/Info (Environmental Systems
Research Institute, Redlands, California) Export format file containing
points representing designation of stratigraphic regions for the Geologic
Map of Utah, and an ArcView 3.2 (Environmental Systems Research Institute,
Redlands, California) project containing scripts and dialogs for performing
a series of generalization and mineral resource queries. IMPORTANT NOTE: Spatial data for the respective stage geologic maps is not distributed with this report. The digital state geologic maps for the states involved in this report are separate products, and two of them are produced by individual state agencies, which may be legally and/or financially responsible for this data. However, the spatial datasets for maps discussed in this report are available to the public. Questions regarding the distribution, sale, and use of individual state geologic maps should be sent to the respective state agency. We do provide suggestions for obtaining and formatting the spatial data to make it compatible with data in this report. See section Obtaining and Formatting Spatial Data in the PDF version of the report. |
This report consists of the following files
File
Name
|
Description
|
File
Size
|
OFR03-135.pdf | Portable document format version of the text |
1.5
MB
|
OFR03-135.txt | ASCII text version of the open-file report |
104
KB
|
wr_mrsa.mdb | Microsoft Access 2000 database of geologic attributes for digital geology of California, Nevada, and Utah |
5.1
MB
|
ut_regions.e00 | ESRI interchange file for stratigraphic regions used in the digital geology of Utah |
3.4
MB
|
ut_regions.met | FGDC-compliant metadata for ut_regions.e00 |
12
KB
|
wr_mrsa.apr | ESRI Arc View 3.2 project file for sample mineral resource and generalization queries of the database |
108
KB
|
lithtree.zip | Microsoft Windows executable for browsing the lithology hierarchy of the database |
12
KB
|
OFR03-135.zip | Zip file containing the seven files listed above |
2.2
MB
|
For questions about the content of this report, contact David Bedford
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