Identification_Information:
  Citation:
    Citation_Information:
      Originator: L. Sue Beard
      Originator: Jeffery Kennedy
      Originator: Margot Truini
      Originator: Tracey Felger
      Publication_Date: 2011
      Title: Geologic Map of Detrital, Hualapai, and Sacramento Valleys and surrounding areas, Northwest Arizona (AlluvialBasinsGeology.mdb)
      Edition: Version 1.0
      Geospatial_Data_Presentation_Form: vector digital data (ESRI personal geodatabase)
      Series_Information:
        Series_Name: U.S. Geological Survey Open-File Report
        Issue_Identification: Open-File Report 2011-1225
      Publication_Information:
        Publication_Place: Flagstaff, Arizona
        Publisher: U.S. Geological Survey
      Online_Linkage: http://pubs.usgs.gov/of/2011/1225/
  Description:
    Abstract: This geodatabase contains spatial data used to construct the Geologic Map of Detrital, Hualapai, and Sacramento Valleys and surrounding areas, Northwest Arizona.
    Purpose: This digital database and the accompanying map and text provide a regional-scale depiction of the stratigraphy and structural geology of the Basin and Range in northwest Arizona.  They were prepared in support of the Northwest Alluvial Basins Geohydrologic Study.
    Supplemental_Information:
      This geodatabase was compiled predominantly from published and unpublished geologic maps ranging in scale from 1:12,000 to 1:250,000.  Areas not covered by these maps were filled in with information interpreted from a variety of satellite (30 m pixal size) and National Agriculture Imagery Program (NAIP) airborne imagery.

      This geodatabase includes the 'geology250k' feature dataset:

      Feature classes:
           bedding and foliation attitudes (abatd_pt)
           fold axes (abfold_arc)
           geologic contacts and faults (abglg_arc)
           geologic unit polygons (abglg_poly)ab
           geologic unit points (abglg_pt)

      Annotation classes:
           bedding and foliation annotation (abatd_ptAnno)
           geologic unit annotation (abglg_ptAnno)

      Relationship classes:
           abatd_ptAnno - links abatd_pt to abatd_ptAnno
           abglg_ptAnno - links abglg_pt to abglg_ptAnno 

      The accompanying style file (AlluvialBasinsGeo.style) contains the cartographic symbols that were applied to each feature class in ArcMap to create the actual map.
  Time_Period_of_Content:
    Time_Period_Information:
      Single_Date/Time:
        Calendar_Date: 2011
    Currentness_Reference: publication date
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: None planned
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: geology
      Theme_Keyword: geologic map
      Theme_Keyword: alluvial basin
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Detrital Valley
      Place_Keyword: Hualapai Valley
      Place_Keyword: Sacramento Valley
      Place_Keyword: Kingman
      Place_Keyword: Arizona
      Place_Keyword: Mohave County
      Place_Keyword: USA
  Access_Constraints: None
  Use_Constraints: Not for use at scales larger than 1:250,000.  Any derivative products utilizing these datasets shall clearly indicate their source.  If users modify the data in any way they are obligated to describe the types of modifications they have performed.  User specifically agrees not to misrepresent these datasets, nor to imply that changes they made were approved by the authors.
  Point_of_Contact:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: L. Sue Beard
        Contact_Organization: U.S. Geological Survey
      Contact_Position: Geologist
      Contact_Address:
        Address_Type: mailing and physical address
        Address: 2255 N. Gemini Dr.
        City: Flagstaff
        State_or_Province: AZ
        Postal_Code: 86001
        Country: USA
      Contact_Voice_Telephone: 928-556-7196
      Contact_Facsimile_Telephone: 928-556-7169
      Contact_Electronic_Mail_Address: sbeard@usgs.gov
  Data_Set_Credit: This digital database was prepared by L. Sue Beard, U.S. Geological Survey.  Digital review was provided by Debra Block, U.S. Geological Survey.
  Native_Data_Set_Environment: ESRI ArcGIS 9.3.1
Data_Quality_Information:
  Attribute_Accuracy:
    Attribute_Accuracy_Report: Geologic features in this geodatabase were symbolized based on attributes and plotted at 1:250,000-scale, then visually reviewed for accuracy by the authors.  The geodatabase was checked for polygon adjacency issues such as internal contacts and fault logic.
  Logical_Consistency_Report: This geodatabase has been reviewed and is considered to be error-free.  All features have attributes.  Each line segment has a length and directionality that is appropriate for the geologic feature it depicts.  No sliver polygons are present. Topological integrity of the data is maintained in the geodatabase by the following rules: 1) must not self overlap, 2) must not self-intersect, 3) must not intersect or touch interior, 4) must not have dangles, 5) must be single part, 6) must not have pseudos.
  Completeness_Report: This geodatabase is considered complete.  All geologic features depicted on the source maps were digitized and attributed.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        Most of the geologic features in this database were digitized from other datasets and location accuracy is unknown due to uncertainties introduced by 1) unknown accuracy of the original data sources (as cited in the 'source' attribute field), and 2) distortions inherited from the scanning and georeferencing of the original source data.

        Note:  Refer to metadata for each feature class for detailed information about the positional accuracy of features.
  Lineage:
    Source_Information:
      Source_Contribution: This digital database was compiled dominantly from published and unpublished geologic maps ranging in scale from 1:12,000 to 1:250,000.    Areas not covered by these maps were filled in with information dervied from a variety of satellite and airborne imagery.  Refer to the reference section in the accompanying pamphlet and the SOURCE attribute field in the abglg_pt, abglg_poly, and abatd_pt feature classes (geology250k feature dataset) for a complete list of data sources and a description of the compilation process.
    Process_Step:
      Process_Description: Mapping was accomplished using a combination of compilation from existing source material, supplemented by mapping on satellite imagery and aerial photographs.  Geologic data from original mapping sources was scanned and saved in TIF format or obtained as PDF files and converted to TIF format.  The TIF files were georeferenced in ArcMap to 1:24,000-scale DRGs, aerial photography, or satellite imagery using a 1st-order polynomial transformation.  The scanned source maps and DRGs were used as a guide from which geologic data were digitized.  The ArcCatalog process "Create new polygon feature class from lines and points" was used to create geologic unit polygons from digitized contacts (abglg_arc) and unit labels (abglg_pt).  Each feature class was symbolized based on attributes and edited as needed to achieve an error-free database.
Spatial_Reference_Information:
  Horizontal_Coordinate_System_Definition:
    Planar:
      Grid_Coordinate_System:
        Grid_Coordinate_System_Name: Universal Transverse Mercator
        Universal_Transverse_Mercator:
          UTM_Zone_Number: 12
          Transverse_Mercator:
            Scale_Factor_at_Central_Meridian: 0.999600
            Longitude_of_Central_Meridian: -111.000000
            Latitude_of_Projection_Origin: 0.000000
            False_Easting: 500000.000000
            False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution: 0.000128000000119
        Planar_Distance_Units: meters
    Geodetic_Model:
      Horizontal_Datum_Name: North American Datum of 1983
      Ellipsoid_Name: Geodetic Reference System 80
  Vertical_Coordinate_System_Definition:
    Altitude_System_Definition:
      Altitude_Resolution: 0.000003
      Altitude_Encoding_Method: Explicit elevation coordinate included with horizontal coordinates
Entity_and_Attribute_Information:
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: geology250k
      Entity_Type_Definition: Feature dataset containing geologic data feature classes, including geologic contacts and faults (abglg_arc), geologic unit points (abglg_pt), geologic unit polygons (abglg_poly), fold axes (abfold_arc), and bedding and foliation attitudes (abatd_pt).  Geologic unit points and bedding and foliation attitudes also have associated feature-linked annotation and relationship classes (abglg_ptAnno and abatd_ptAnno).
      Entity_Type_Definition_Source: Author
Distribution_Information:
  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: U.S. Geological Survey Information Services
      Contact_Address:
        Address_Type: mailing address
        Address: Box 25286 Denver Federal Center
        City: Denver
        State_or_Province: Colorado
        Postal_Code: 80225
        Country: USA
      Contact_Voice_Telephone: 1-888-ASK-USGS
      Contact_Electronic_Mail_Address: ask@usgs.gov
  Resource_Description: Downloadable Data
  Distribution_Liability:
    The U.S. Geological Survey (USGS) provides these geospatial data "as is."  The USGS makes no guarantee or warranty concerning the accuracy of information contained in the geospatial 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 delivery, installation, operation, or support by USGS.
  Standard_Order_Process:
    Digital_Form:
      Digital_Transfer_Information:
        Format_Name: ArcGIS Personal Geodatabase
        Format_Version_Number: 9.3
      Digital_Transfer_Option:
        Online_Option:
          Computer_Contact_Information:
            Network_Address:
              Network_Resource_Name: http://pubs.usgs.gov/of/2011/1225/
    Fees: none
Metadata_Reference_Information:
  Metadata_Date: 20111114
  Metadata_Contact:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: L. Sue Beard
        Contact_Organization: U.S. Geological Survey
      Contact_Position: Geologist
      Contact_Address:
        Address_Type: mailing and physical address
        Address: 2255 N. Gemini Drive
        City: Flagstaff
        State_or_Province: AZ
        Postal_Code: 86001
        Country: USA
      Contact_Voice_Telephone: 928-556-7196
      Contact_Facsimile_Telephone: 928-556-7169
      Contact_Electronic_Mail_Address: sbeard@usgs.gov
  Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
  Metadata_Time_Convention: local time
  Metadata_Access_Constraints: none
  Metadata_Use_Constraints: none
  Metadata_Extensions:
    Online_Linkage: http://www.esri.com/metadata/esriprof80.html
    Profile_Name: ESRI metadata Profile