sim3187_readme

DESCRIPTION OF THE DIGITAL DATABASE FOR LIDAR-REVISED GEOLOGIC 
MAP OF THE WILDCAT LAKE 7.5' QUADRANGLE, KITSAP AND MASON 
COUNTIES, WASHINGTON 

by Rowland W. Tabor, Ralph A. Haugerud,  Peter J. Haeussler. 
and Kenneth P. Clark

2011

USGS SCIENTIFIC INVESTIGATIONS MAP 3187


INTRODUCTION

This digital database for the LIDAR-REVISED GEOLOGIC MAP OF THE 
WILDCAT LAKE 7.5' QUADRANGLE(USGS SIM 3187) includes six ArcInfo 
coverages (individual vector datasets) along with supporting 
files and metadata.  The coverages have been converted to 
ArcInfo export files. Relative to coverages, ArcInfo export 
files are easier to transport from one ArcInfo installation to 
another and are usable by some other Geographic Information 
Systems. 

All GIS data are in STATEPLANE projection, zone 5601, units 
FEET, SPHEROID, GRS1980 horizontal datum NAD83. 
 
Together with the geologic pamphlet, the database provides 
georeferenced information on the geologic structure and 
stratigraphy of the area covered. The database delineates map 
units that are identified by general age and lithology following 
the stratigraphic nomenclature of the U.S. Geological Survey. 
The spatial resolution (scale) of the database is 1:24,000 or 
less. The content and character of the database, as well as how 
to obtain the database, are described below. 

This database contains 4 ArcInfo coverages with geologic content 
and 2 coverages with base map content:
 

GEOLOGIC CONTENT:

File                Description 
-------------------------------------------------------------

WILDCATGEOL         Network coverage with arcs, polygons, and 
                    polygon label points. 

WCSTR               Point coverage of bedding plane strikes and 
                    dips with orientation data
 
WCDIKES             Point coverage of volcanic dikes with 
                    orientation data

WCXSLINE            Arc coverage with location of cross-section 
                    line A-A'  


BASE MAP CONTENT:

File                Description 
-------------------------------------------------------------

WILDCATDRAIN        Arc coverage showing digitized streams and 
                    rivers

WILDCATRDS          Arc coverage of roads

wcrelief.tif        Uncompressed TIFF-format shaded relief 
                    image with geologic map unit colors

wcrelief.tfw        World file that locates wcgrelief.tif in 
                    Stateplane projection, units feet, datum 
                    NAD83


DIGITAL DATABASE AND METADATA PACKAGE (sim3187_database.zip)

The ARC export files and associated ArcInfo coverages, as well 
as the additional digital material included in the database 
package, are described below:


File                    Description 
-------------------------------------------------------------

sim3187_readme.txt      This readme file

wpgcmyk.style           Color style file for symbol item in
                        wildcatgeol.pat

sim3187_metadata.txt    Text-format FGDC-style metadata for the
                        databasepackage as a whole

sim3187_metadata.xml    XML-format FGDC-style metadata for the 
                        database package as a whole

Each coverage within the Geology and Base subdirectories 
contains detailed XML-format FGDC-style metadata specific to the 
coverage. This metadata is stored as file metadata.xml within 
the coverage directory, and is easily browsed from within 
ArcCatalog, or read with a web browsers (for example, Firefox, 
Safari, Internet Explorer) 


Geology subdirectory:

File                Description 
-------------------------------------------------------------

wildcatgeol.e00     ArcInfo export file of geologic contacts,
                    faults, and generalized map units 

wcstr.e00           ArcInfo export file of bedding strike
                    and dip

wcdikes.e00         Arcinfo export file of dike locations
                    and orientation data

wcxsline.e00        Arcinfo export file of cross section line
                    location


Base subdirectory:

File                Description 
-------------------------------------------------------------
wildcatrds.e00      ArcInfo export file of roads

wildcatdrain.e00    ArcInfo export file of Drainage network


Users of the database package may wish to download the pamphlet 
(1.l MB pdf) for the contained Description of Map Units. 

The material described above is available on the World-Wide Web 
at http://pubs.usgs.gov/sim/3187/. 


ZIP FILES

The files described above are packaged within a ZIP file. 
Utilities to uncompress ZIP files are available for most all 
operating systems and may be found readily with a simple web 
search. 

DIGITAL DATABASE FORMAT

The databases in this report were compiled in ArcInfo, a 
commercial Geographic Information System (Environmental Systems 
Research Institute, Redlands, California.  ArcInfo coverages 
were converted to uncompressed ARC export files (.e00 extention, 
ArcInfo version 9.3 for Windows XP). These export files can be 
converted into back into coverages in ArcInfo with the IMPORT 
command, e.g., 

          Arc: import cover xxx.e00 xxx 

where xxx is the coverage name. The files can also be read by 
some other Geographic Information Systems. While specifications 
for the .e00 format has not been published by Environmental 
Systems Research Institute, the files are plain ASCII, the 
structure is relatively easy to decode, and 3rd-party 
descriptions are available via Web search for ".e00 format".

OBTAINING THE DIGITAL DATABASE

Go to 

          http://pubs.usgs.gov/sim/3187/ 

to access the database package and the remainder of this 
publication.

ACKNOWLEDGEMENTS

We thank Karen Wheeler for review of this readme, the database 
package, and associated metadata.