DI-30: GEOLOGIC SPATIAL DATA
(1:24,000-scale) FOR THE NORTHWEST PHOENIX METROPOLITAN AREA, MARICOPA COUNTY,
Arizona Geological Survey Digital Information 30 (DI-30) version 1.0
This product contains geologic data from part of the
Phoenix North 30 by 60 minute quadrangle. Data were compiled from a variety of
sources with at 1:24,000 scale. Data are provided in a standard NGMDB (National
Geologic Map Database) format geodatabase, as well as a series of shapefiles. The
geodatabase and shapefiles are projected in the NAD27 UTM zone 12 coordinate
system. Browse graphics in JPG and Adobe®
are included to provide an easy view of the contained data. These browse
graphics are generated using mostly automated cartographic procedures provided
by GIS software, and are not complete, edited geologic maps. An ArcMap project (.mxd)
and an ArcReader published map (.pmf) provide starting points for accessing the
data. For users who do not have ESRI ArcGIS licenses, free data viewing
software (ArcReader) is included. Please note that all shapefiles, layer files,
and ESRI map documents were created using ArcGIS 9.2, and may not function
properly with older versions of the software.
True type fonts must be installed in order for
cartographic symbols to be displayed correctly in Adobe® PDF files and ESRI ArcMap projects files. A batch file (InstallFontsOnly.bat)
which installs these fonts is included.
For users who wish to interact with the NGMDB
geodatabase, a class extension (NGMDBClassExtension.dll) is available to
automatically generate unique primary key Globally Unique Identifier (GUID)
strings when data are added. The extension also populates the NGMDB maintenance
fields in the database. To use the class extension, the .dll must be registered
with the operating system (MS Windows only) and in the proper ESRI component
category. A batch file (InstallForArcGIS9.bat) which installs both the fonts
mentioned above and the class extension is included.
Database – Folder containing the ESRI
personal geodatabase, which is a Microsoft Access .mdb file, and related
documents. These are copies of Arizona Geological Survey databases that are
used for compilation and archiving of geologic information. The data structure
is a relational implementation of an object model, and will require some study
to utilize. The databases are included for advanced users interested in a more
content rich geologic database implementation. Contact AZGS for more
personal geodatabase implemented using NGMDB model. Shapefiles in shapefile
directory are generated from this database.
Microsoft Access database, front end application contains queries, forms,
reposts and visual basic code to assist with using geologic geodatabases implemented
using NGMDB model. This collection of software tools is constantly under
development and debugging, and is presented for advanced users to provide some
indication of how the geologic geodatabase might be used.
directory containing Microsoft word and power point documents describing the
NGMDB standard format. These are works in progress to varying degrees.
– Microsoft Power point presentation outlining the major design considerations
for the NGMDB database implementation
– documentation for some of the relationships between tables in the database
– description of database design and all tables and fields in the geodatabase.
Most complete documentation of database structure.
description of geodatabase feature model implemented in geologic geodatabase.
Focuses of consideration specific to representation of spatial data using ESRI
– draft html files documenting use of the front end database, emphasizing field
Shapefiles – Folder containing shapefiles extracted from Feature Classes in the
Geodatabase. These files provide a simple way of accessing the geologic data
for users with access to ESRI ArcGIS software.
This line shapefile displays bedrock contacts and faults concealed beneath
This line shapefile displays exposed geologic contacts and faults.
This polygon shapefile displays the outcrop areas of geologic units.
This point shapefile displays symbols indicating the strike and dip of oriented
structures, including bedding, foliation and faults.
Layers – Folder containing layer files, which can be used
to correctly symbolize the data contained in the above shapefiles. These layer
files can be directly added to an ESRI ArcMap document, or used to symbolize
feature classes from the geodatabase. Symbology for all layers is based on the
CartoObjID field. For more information, see the support section below.
Graphics – Folder containing browse graphics for the
geologic data provided. These graphics are provided as JPG images (High
Resolution: 300 dpi, Low Resolution: 72 dpi).
– Folder containing ESRI map products
for viewing the data.
ESRI ArcMap document for users with ArcGIS software. Allows the user full
access and manipulation of the data contained in the shapefiles described above.
ESRI published map document for users without ArcGIS software. This file can be
viewed using ArcReader, free ESRI software which is included on this CD. Allows
users to view the data contained in the shapefiles, however the data cannot be
Metadata – Folder containing metadata for the database in
ArcMap XML as well as HTML and text FGDC compliant formats.
Topos – Folder containing georeferenced USGS topographic
maps pertaining to the extent of the geologic data.
PhxN100k.tif: 1:100,000 scale USGS
topographic map. Phoenix North 30’x60’ quadrangle.
Text – Folder containing this
document in HTML and Adobe® PDF formats.
Support – Folder containing
supplemental software and files.
folder contains documentation as well as the files necessary to install
ArcReader, which is free ESRI software for viewing published map files (.pmf).
To install ArcReader, make sure you have administrative privileges and
double-click the “Setup.msi” file.
described above (InstallFontsOnly.bat and InstallForArcGIS9.bat) perform
installations required to view map symbols properly as well as interact with
the NGMDB geodatabase.
Three Adobe® PDF files describe how CartoObjID numbers are used to symbolize
point, line and polygon data.
Arizona Geological Survey
416 W. Congress St. suite 100
Tucson, AZ, 85701
Phone: (520) 770-3500
Fax: (520) 770-3505