Entry_ID: (required)
Entry_Title: Geologic map of the Hayward fault zone, Contra Costa, Alameda, and Santa Clara Counties, California: A digital database
Group: Data_Set_Citation
  Originator(s): R.W. Graymer; D.L. Jones; E.E. Brabb
  Title: Geologic map of the Hayward fault zone, Contra Costa, Alameda, and Santa Clara Counties, California: A digital database
  Publication: U.S. Geological Survey Open-File Report
  Publication_Date: 1995
  Data_Presentation_Form: map
  URL: http://pubs.usgs.gov/of/1995/of95-597/
End_Group
Keyword: fault zones
Group: Temporal_Coverage
  Start_date: 1995
  Stop_date: 1995
End_Group
Data_Set_Progress: Complete
Location: 06001 = Alameda
Location: 06013 = Contra Costa
Location: 06085 = Santa Clara
Group: Data_Resolution
End_Group
  Access_Constraints: none
Originating_Center: (required)
Group: Data_Center
  Data_Center_Name: USGS Information Services
  Dataset_ID: US Geological Survey Open-File Report 95-0597
Group: Data_Center_Contact
  Last_name: USGS Information Services
  First_name: N/A
  Email: infoservices@usgs.gov
  Phone: 1-888-ASK-USGS
  Group: Address
    Box 25286, Denver Federal Center
    Denver, Colorado 80255-0046
    USA
  End_Group
End_Group
End_Group
  Storage_Medium: ARC/INFO version 7.0.2
Group: Distribution
  Distribution_Media: online
  Distribution_Format : ARCE
  Distribution_Size: 18.6
  Fees: none
End_Group
Group: Multimedia_Sample
  URL: http://pubs.usgs.gov/of/1995/of95-597/hfmap.jpg
  Format: JPEG
  Caption: Reduced-size image of geologic map sheet of the Hayward fault zone.
End_Group
Group: Reference
End_Group
Group: Summary
  The purpose of this report is fivefold.  1) to  demonstrate the
  short history of the creeping strand and to  describe the structural
  history of the fault zone as a whole;  2) to illustrate potentially
  active strands within the  Hayward fault zone in addition to the
  creeping strand defined  by Lienkaemper; 3) to describe structures
  related to the  Hayward fault zone including compressive structures;
  4) to  show possible Hayward - Calaveras fault connections in
  addition to that proposed by Andrews and others; 5) to  describe
  rock types involved in the Hayward fault zone.
  
  This digital map database, compiled from previously open- filed U.S.
  Geological Survey reports (Graymer and others,  1994, Graymer,
  Jones, and Brabb, 1994) and unpublished data,  represents the
  general distribution of rocks and faults in  the Hayward fault zone.
  As described in this report, the  Hayward fault zone is a zone of
  highly deformed rocks which  trends north 30 degrees west from an
  area southeast of San  Jose to the San Pablo Bay, and ranges in
  width from 2 to 10  kilometers.  Although historic earthquake
  activity has been  concentrated in the western part of the zone, the
  zone as a  whole reflects oblique right-lateral and compressive
  deformation along a significant upper crustal break over the  past
  10 million years or more.  Together with the  accompanying text file
  (hfgeo.txt), the database provides  current information on the
  distribution and description of  faults and rock types within the
  fault zone.  In addition,  the text file discusses the development
  of the fault zone in  the past 10 million years, the relationship of
  the Hayward  and Calaveras fault zones, and the significance of the
  creeping strand of the Hayward fault (as most recently  defined by
  Lienkaemper, 1992).
End_Group
Group: DIF_Author
  Last_name: Schweitzer
  First_name: Peter
  Middle_name: N
  Email: pschweitzer@usgs.gov
  Phone: 703-648-6533
  Group: Address
    Mail Stop 954
    12201 Sunrise Valley Dr
    Reston, VA 20192-0002
    USA
  End_Group
End_Group
DIF_Revision_Date: 20150204
Science_Review_Date: