GEOLOGIC MAP OF THE WARM SPRING CANYON AREA, DEATH VALLEY NATIONAL PARK, INYO COUNTY, CALIFORNIA, WITH A DISCUSSION OF THE REGIONAL SIGNIFICANCE OF THE STRATIGRAPHY AND STRUCTURE

Scientific Investigations Map 2974

By Chester T. Wrucke, Paul Stone, and Calvin H. Stevens

2007

DESCRIPTION OF DATA FILES

By Paul Stone

INTRODUCTION

The results of this mapping of the geology of the Warm Spring Canyon area are
presented as a digital geologic map database.  This document describes the 
types and contents of files comprising the database.  Information on how to 
extract and plot the map also is provided.

This publication includes ARC/INFO (Environmental Systems Research Institute, 
http://www.esri.com) version 8.1.2 coverages and associated tables; Portable 
Document Format (PDF) files of the geologic map (which includes four structural 
cross sections) and an accompanying geologic pamphlet; and a text file of FGDC- 
compliant metadata for the report.
 
GEOLOGIC MAP DATABASE FILES AND ASSOCIATED FILES

All files listed in this section are in a compressed tar file named
SIM2974.tar.gz; see section below titled, SOFTWARE UTILITIES.

ARC/INFO			Coverage		Contains 	
Interchange file

wsc_geo.e00			wsc_geo		Contacts, faults, and rock units
wsc_str.e00			wsc_str		Folds; attitudes and dip values
wsc_bvt.e00			wsc_bvt		Inferred original trace of the
							Butte Valley Thrust
wsc_sample.e00		wsc_sample		Sample localities
wsc_xs.e00			wsc_xs		Cross-section lines

The directory, info/, is produced in the process of importing interchange files 
to ARC coverages in ARC/INFO.  The info/ directory contains:

Polygon attribute table		wsc_geo.pat
Arc attribute tables		wsc_geo.aat, wsc_str.aat, wsc_xs.aat, wsc_bvt.aat
Point attribute tables		wsc_str.pat, wsc_sample.pat

FILES FOR VIEWING AND PLOTTING

SIM2974_map.pdf			A Portable Document Format (PDF) file for viewing
					and plotting the geologic map at full scale.  The
					plot is approximately 29 x 37 inches in size.

SIM2974_pamphlet.pdf		A Portable Document Format (PDF) file for viewing
					and printing a pamphlet that accompanies the map.
					The pamphlet contains a geologic interpretation
					and the description of map units.

METADATA

SIM2974_met.txt			Federal Geographic Data Committee (FGDC) compliant
					metadata file derived from the digital database

SOFTWARE UTILITIES

Files that have the .gz file extension were compressed using gzip.  Gzip 
utilities are available free of charge via the Internet at the gzip home page, 
http://www.gzip.org.

The data package is additionally bundled into a single tar (tape archive) file.  
The individual files must be extracted using a tar utility, available free of 
charge via the Internet through links on the Common Internet File Formats page, 
http://www.matisse.net/files/formats.html.  One such utility is WinZip, 
available at http://www.winzip.com (WinZip can also decompress files).

HOW TO OBTAIN THE DIGITAL FILES

The digital files constituting the geologic map database of this report may be 
obtained via the Internet from the U.S. Geological Survey publications website.  
Go to the web page at http://pubs.usgs.gov/sim/2007/2974 and follow the 
directions to download the files.

EXTRACTING THE GEOLOGIC MAP DATABASE FROM THE TAR FILE

After downloading the files, they must be uncompressed using a gzip utility such 
as gzip itself or WinZip.  The data files must then be extracted using the 
appropriate tar utility.

To do this					Type this at the Unix command prompt

Uncompress SIM2974.tar.gz		gzip -d SIM2974.tar.gz (or use gzip utility
to SIM2974.tar				of choice)

Go to the directory that will		cd local_directory
hold the directory wsc/ (if 
different from local_directory)

Extract the Warm Spring Canyon	tar -xvof {path to tar file}/SIM2974.tar
directory from the tar file		(or use tar utility of choice)

This process will create a directory, wsc/, that contains the ARC/INFO 
interchange files and supporting files.

CONVERTING THE ARC/INFO EXPORT FILES

ARC interchange (.e00) files are converted to ARC coverages using the ARC 
command IMPORT with the option COVER. 

ARC interchange files also can be read by some other Geographic Information 
Systems.  Please consult your GIS documentation to see if you can use ARC 
interchange files and to determine the procedure for importing them.

PORTABLE DOCUMENT FORMAT (PDF) FILES

The PDF files are accessed using Adobe Acrobat Reader software, available free 
from the Adobe website http://www.adobe.com.  Follow instructions at the website 
to download and install the software.  Acrobat Reader contains an on-line manual 
and tutorial.