Coastal & Marine Geology InfoBank

Home FACS Activities Atlas Geology School Related Sites More

Skip navigational links
Loading
Activities: by ID   by Platform   by Year   by Region   by Participant   by Organization   by Project/Theme   with Incomplete IDs   Disclaimer  
Activity First Letter: A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z   0   1   2   3   4   5   6   7   8   9  
Virtual Globes: Atlas  (GE)    Samples  (GE)    Moorings  (GE)    Illuminate Oceans  (GE)    Earthquakes  (GE)    Get GE    InfoBank examples    State Waters    Chronology  (GE)    Gravity Base Stations  (GE)

What does this data set describe?

Title:
Deep-Crustal Seismic data of field activity M-1-97-SF in San Francisco Bay from 08/31/1997 to 09/15/1997
Abstract:
Chief Scientists: Pat Hart, Jon Childs. Deep-Crustal Seismic data (seismograph, YoNav, GPS) of field activity M-1-97-SF in San Francisco Bay from 08/31/1997 to 09/15/1997, <http://walrus.wr.usgs.gov/infobank/m/m197sf/html/m-1-97-sf.meta.html>.
Supplemental_Information:

Equipment Used -
seismograph dfs-v seismograph
YoNav
GPS Differential GPS
Notes -
See also A-1-97-SF (Auriga)
The 1997 Bay Area Seismic Imaging Experiment (BASIX-III) was the latest
in a series of USGS deep-crustal seismic reflection studies of the fault
geometry and crustal structure of the San Francisco Bay Area. The specific
goal of BASIX-III was to investigate a 15 to 25 km deep zone of
high-amplitude seismic reflectivity that has been interpreted as a possible
sub-horizontal detachment linking the San Andreas and Hayward Faults. A
twelve air gun source array, deployed from the M/V Auriga and a 2400 meter
hydrophone streamer deployed from the R/V William A. McGaw were used for
the data acquisition. The streamer was laid directly on the bay floor at
five separate locations in San Francisco, San Pablo, and Suisun Bays and
remained stationary for two days at each recording site. The air gun array
was towed past the streamer and out to offsets of 25 km and fired at
approximately 150 to 200 meter intervals. When data processing is
completed, the resulting images should better define the structural
relationship of the lower crustal reflective layer and the vertical
strike-slip faults that comprise the Pacific-North American plate boundary.

Similar information is available for thousands of other USGS/CMG-related Activities.
If known, available are Activity-specific navigation, gravity, magnetics, bathymetry, seismic, and sampling data; track maps; and equipment information; as well as summary overviews, crew lists, and information about analog materials.
If available, access to physical samples is described in the "WR CMG Sample Distribution Policy" at: <http://walrus.wr.usgs.gov/infobank/programs/html/main/sample-dist-policy.html>
Primary access to the USGS/CMG Information Bank's digital data, analog data, and metadata is provided through... <http://walrus.wr.usgs.gov/infobank/>
This page accomodates a variety of search approaches (e.g., by platform, by region, by scientist, by equipment type, etc.).
  1. How should this data set be cited?

    U.S. Geological Survey (USGS) <http://www.usgs.gov/>, Coastal and Marine Geology Program (CMGP) <http://marine.usgs.gov/>, 20131029, Deep-Crustal Seismic data of field activity M-1-97-SF in San Francisco Bay from 08/31/1997 to 09/15/1997: U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>, Menlo Park, CA.

    Online Links:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -122.44003
    East_Bounding_Coordinate: -122.09148
    North_Bounding_Coordinate: 38.07104
    South_Bounding_Coordinate: 37.57696

  3. What does it look like?

  4. Does the data set describe conditions during a particular time period?

    Beginning_Date: 31-Aug-1997
    Ending_Date: 15-Sep-1997
    Currentness_Reference: ground condition

  5. What is the general form of this data set?

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

      Indirect_Spatial_Reference: San Francisco Bay
      This is a Point data set. It contains the following vector data types (SDTS terminology):
      • Point

    2. What coordinate system is used to represent geographic features?

      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.00001. Longitudes are given to the nearest 0.00001. Latitude and longitude values are specified in Decimal degrees.

      The horizontal datum used is North American Datum of 1983.
      The ellipsoid used is Geodetic Reference System 80.
      The semi-major axis of the ellipsoid used is 6378137.
      The flattening of the ellipsoid used is 1/298.257.

      Vertical_Coordinate_System_Definition:
      Depth_System_Definition:
      Depth_Datum_Name: Local surface
      Depth_Resolution: 0.1
      Depth_Distance_Units: meters
      Depth_Encoding_Method: Attribute values


  7. How does the data set describe geographic features?

    Entity_and_Attribute_Overview:
    Navigation with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/nav.html>


Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

    Pat Hart (Chief Scientist , USGS Western Region ); Jon Childs (Chief Scientist, USGS Western Region ); Ray Sliter (Geophysicist, USGS Western Region ); Tom Parsons (Geophysicist, USGS Western Region ); Walt Olson (Mechanical Technician, USGS Western Region ); Kevin O'Toole (Mechanical Technician, USGS Western Region); Hal Williams (Mechanical Technician, USGS Western ); Jon Childs (Chief Scientist, Region USGS Western Region ); Dave Hogg (Electrical Technician, USGS Western Region ); Bill Robinson (Electrical Engineer, USGS Western Region ); Jeff Brody (Computer Specialist, USGS Western Region); Dennis Mann (Data Curator, USGS Western Region); Steve Wessels (Photographer, USGS Western Region ); Bill Cooperwat (Geologist, Stanford); Diane Minasian (Geologist, USGS Western Region); Terence Shinn (Ship Captain); Dave (Chief Engineer); Steve Bean (Chief Mate); Mary Nichols (Cook)

  3. To whom should users address questions about the data?

    U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>
    Attn: Clint Steele <http://walrus.wr.usgs.gov/staff/csteele.html>
    InfoBank Group Leader <http://walrus.wr.usgs.gov/staff/csteele.html>
    USGS, MailStop 999, 345 Middlefield Road
    Menlo Park, CA 94025-3561
    USA

    (650) 329-5055 (voice)
    (650) 329-5190 (FAX)
    infobank@octopus.wr.usgs.gov <mailto:infobank@octopus.wr.usgs.gov>


Why was the data set created?

These data and information are intended for science researchers, students from elementary through college, policy makers, and general public.


How was the data set created?

  1. From what previous works were the data drawn?

  2. How were the data generated, processed, and modified?

    Date: 11-Jul-2000 (process 1 of 1)
    Navigation Data
    time/lat/long style, multi-record, in caps
    temporal-spatial data
    data acquisition systems
    
           1         2         3
    3456789012345678901234567890123456
    

    Person who carried out this activity:

    U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>
    Attn: Clint Steele <http://walrus.wr.usgs.gov/staff/csteele.html>
    InfoBank Group Leader <http://walrus.wr.usgs.gov/staff/csteele.html>
    USGS, MailStop 999, 345 Middlefield Road
    Menlo Park, CA 94025-3561
    USA

    (650) 329-5055 (voice)
    (650) 329-5190 (FAX)
    infobank@octopus.wr.usgs.gov <mailto:infobank@octopus.wr.usgs.gov>

  3. What similar or related data should the user be aware of?

    U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>, Unknown, USGS/CMG Information Bank <http://walrus.wr.usgs.gov/infobank/>: U.S. Geological Survey (USGS) <http://www.usgs.gov> Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>, Menlo Park, CA.

    Online Links:


How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?

    Identified as best available version.

  2. How accurate are the geographic locations?

    Unspecified

  3. How accurate are the heights or depths?

    Unspecified

  4. Where are the gaps in the data? What is missing?

    Start and end date/times of data

    Navigation Data (m-1-97-sf.060 [GPS])
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    199708311615304    199708312259208
    199708312308500    199708312316507
    199709010255004    199709010511407
    199709010527102    199709010529309
    199709020725101    199709020737507
    199709022159200    199709030022208
    199709030103301    199709030136104
    199709031806303    199709040038205
    199709041809103    199709041814007
    199709041826301    199709041849000
    199709051900407    199709052216105
    199709061448500    199709061559005
    199709061610203    199709061612005
    199709061627002    199709070117105
    199709091431501    199709091735409
    199709092158101    199709100021501
    199709101554404    199709101638106
    199709101803201    199709102009500
    199709111728400    199709111733505
    199709121514102    199709121958505
    199709122007303    199709122208107
    199709131820200    199709132207006
    199709140227203    199709140228009
    199709141915304    199709141936007
    199709142039101    199709142212007
    199709151202300    199709151330402
    199709151346304    199709151502406
    YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
    

  5. How consistent are the relationships among the observations, including topology?

    Unspecified


How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints:
Physical materials are under controlled on-site access.
If available, access to physical samples is described in the "WR CMG Sample Distribution Policy" at: <http://walrus.wr.usgs.gov/infobank/programs/html/main/sample-dist-policy.html>
Use_Constraints:
Please recognize the U.S. Geological Survey (USGS) as the source of this information.
Physical materials are under controlled on-site access.
Some USGS information accessed through this means may be preliminary in nature and presented without the approval of the Director of the USGS. This information is provided with the understanding that it is not guaranteed to be correct or complete and conclusions drawn from such information are the responsibility of the user.
This information is not intended for navigational purposes.
Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

  1. Who distributes the data set? (Distributor 1 of 1)

    U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>
    Attn: Clint Steele <http://walrus.wr.usgs.gov/staff/csteele.html>
    InfoBank Group Leader <http://walrus.wr.usgs.gov/staff/csteele.html>
    USGS, MailStop 999, 345 Middlefield Road
    Menlo Park, CA 94025-3561
    USA

    (650) 329-5055 (voice)
    (650) 329-5190 (FAX)
    infobank@octopus.wr.usgs.gov <mailto:infobank@octopus.wr.usgs.gov>

  2. What's the catalog number I need to order this data set?

    Downloadable Data M-1-97-SF data set <http://walrus.wr.usgs.gov/infobank/m/m197sf/html/m-1-97-sf.meta.html>

  3. What legal disclaimers am I supposed to read?

    Please recognize the U.S. Geological Survey (USGS) as the source of this information.
    Physical materials are under controlled on-site access.
    Some USGS information accessed through this means may be preliminary in nature and presented without the approval of the Director of the USGS. This information is provided with the understanding that it is not guaranteed to be correct or complete and conclusions drawn from such information are the responsibility of the user.
    This information is not intended for navigational purposes.
    Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

  4. How can I download or order the data?

    • Availability in digital form:

Data format: ASCII Size: 2.4
Network links: <http://walrus.wr.usgs.gov/infobank/m/m197sf/html/m-1-97-sf.nav.html>

  • Cost to order the data: None


  • Who wrote the metadata?

    Dates:
    Last modified: 29-Oct-2013
    Metadata author:
    U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>
    Attn: Clint Steele <http://walrus.wr.usgs.gov/staff/csteele.html>
    InfoBank Group Leader <http://walrus.wr.usgs.gov/staff/csteele.html>
    USGS, MailStop 999, 345 Middlefield Road
    Menlo Park, CA 94025-3561
    USA

    (650) 329-5055 (voice)
    (650) 329-5190 (FAX)
    infobank@octopus.wr.usgs.gov <mailto:infobank@octopus.wr.usgs.gov>

    Metadata standard:
    FGDC Content Standards for Digital Geospatial Metadata <http://www.fgdc.gov/> (FGDC-STD-001-1998 <http://www.its.nbs.gov/nbs/meta/meta.html>)


    Generated by mp version 2.9.13 on Tue Oct 29 13:08:26 2013