Surficial Geologic Map of the Amboy 30' x 60' Quadrangle, California

By David R. Bedford, David M. Miller, and Geoffrey A. Phelps

U.S. Geological Survey Scientific Investigations Map 3109

2010


DESCRIPTION OF DATA FILES



INTRODUCTION


This publication includes ARC/INFO (Environmental Systems Research Institute, http://www.esri.com) version 9.3 geodatabase; Portable Document Format (PDF) files of the geologic map and an accompanying geologic pamphlet; and text files of this readme and FGDC-compliant metadata for the database.
 
 
GEOLOGIC MAP DATABASE FILES AND ASSOCIATED FILES


Geodatabase                   Contains
SIM3109_gdb.mdb               ESRI ArcGIS 9.3 Geodatabase

Feature Dataset
Amboy_SurfGeo                 Contains the following 
                                feature classes:

Feature Class
amb_geo_arc                   Contacts, faults, and map 
                                boundary arcs

amb_geo_polygon               Geologic map units

Amboy_field_observations      Locations, map unit types, 
                                and nature of other 
                                observations for the map 
                                area

Amboy_SurfGeo_Topology        ESRI topology feature class 
                                that mimics the behavior of 
                                an ESRI coverage for the 
                                amb_geo_arc and 
                                amb_geo_polygon feature 
                                classes


OTHER DATAFILES

amboy_geology_arc.lyr         ESRI ArcGIS 9.3 layer file 
                                for symbolizing the feature 
                                class amb_geo_arc

ambboy_geology_polygon.lyr    ESRI ArcGIS 9.3 layer file 
                                for symbolizing the feature 
                                class 

amb_geo_polygon amboy_field_observations.lyr  
                              ESRI ArcGIS 9.3 layer file 
                                for symbolizing the feature 
                                class 
                                Amboy_field_observations


FILES FOR VIEWING AND PLOTTING

sim3109_map.pdf               A Portable Document Format 
                                (PDF) file for viewing and 
                                plotting the geologic map 
                                at full (1:100,000) scale.  
                                The plot is approximately 
                                56 x 30 inches in size.

sim3109_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
sim3109_metadata.txt          Federal Geographic Data 
                                Committee (FGDC) compliant 
                                metadata file derived from 
                                the digital database


HOW TO OBTAIN THE DIGITAL FILES

To search and order USGS publications (both printed and web) go to http://pubs.er.usgs.gov Alternatively, users may go directly to this publication at http://pubs.usgs.gov/sim/3109/ and follow the download instructions.


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.