Eldred D. Wilson, Richard T. Moore, and John R. Cooper compiled the geologic map of which an acetate archive copy of the separates were located in Reston VA. Robert Miller (USGS) attached fiducial tics to assure registration accuracy. Optronics Specialty Co., Inc. scanned the geologic map and provided minimally attributed Arc/Info interchange-format files to the USGS.
Douglas M. Hirschberg imported the files, transformed them to Lambert Conformal Conic, attached and attributed an interim geologic map data model, verified arc, point, and polygon attribution, added, re-positioned, or re-attributed features as needed, and assisted in creating the look-up tables.
G. Stephen Pitts assisted with the design of the data model, entered the explanatory and source text, assisted in creating the look-up tables, and wrote the metadata.
This database was developed to provide a GIS of the geologic map of the State of Arizona for use at a scale of 1:500,000 or smaller. This GIS is intended for use in future spatial analysis by a variety of users. The geologic unit descriptions for this map may be updated to reflect more current description of structures and the geochronology of the map units.
This database is not meant to be used or displayed at any scale larger than 1:500,000 (e.g., 1:100,000 or 1:24,000)
Are there legal restrictions on access or use of the data?
Use_Constraints:These data are not to be used at scales greater than 1:500,000. Any hardcopies utilizing these data sets shall clearly indicate their source. If the user has modified the data in any way they are obligated to describe the types of modifications they have performed on the hardcopy map. User specifically agrees not to misrepresent these data sets, nor to imply that changes they made were approved by the U.S. Geological Survey.
The U.S. Geological Survey (USGS) provides these geographic data "as is." The USGS makes no guarantee or warranty concerning the accuracy of information contained in the geographic data. The USGS further makes no warranties, either expressed or implied as to any other matter whatsoever, including, without limitation, the condition of the product, or its fitness for any particular purpose. The burden for determining fitness for use lies entirely with the user. Although these data have been processed successfully on computers at the USGS, no warranty, expressed or implied, is made by the USGS regarding the use of these data on any other system, nor does the fact of distribution constitute or imply any such warranty. In no event shall the USGS have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind, including, but not limited to, any loss of profits arising out of use of or reliance on the geographic data or arising out of the delivery, installation, operation, or support by USGS.
This digital geologic map GIS of the Geologic Map of Arizona at a scale of 1:500,000, is not meant to be used or displayed at any scale larger than 1:500,000 (e.g., 1:62,500 or 1:24,000).
|Data format:||Geologic units, structural features, point measurements in format ARCE (version 7.x) Size: 37|