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What does this data set describe?

Title:
Data of field activity A-2-88-NC in Escanaba Trough from 06/02/1988 to 06/13/1988
Abstract:
United States Geological Survey, Menlo Park, California. Chief Scientists: John Edmond, Fred Grassle. Data (Sonatracktransducer, bathymetry, pinger, GPS, bottomtransponder, submersible) of field activity A-2-88-NC in Escanaba Trough from 06/02/1988 to 06/13/1988, <http://walrus.wr.usgs.gov/infobank/a/a288nc/html/a-2-88-nc.meta.html>.
Supplemental_Information:

Equipment Used -
Sonatracktransducer
bathymetry
pinger
GPS
bottomtransponder
submersible
Notes -
Alvin dives #'s 2033 - 2042
Publications -
Reiss, Carol A., and Zierenberg, Robert A., 1994, Preliminary Report of the 1988 A2-88-NC Gorda Ridge Cruise, U.S.G.S. Open File Report 94-711, 109 pp.<BR>
<HR>
Morton, Janet L., Zierenberg, Robert A., and Reiss, Carol A., eds., 1994, Geologic,
hydrothermal, and biologic studies at Escanaba Trough, Gorda Ridge, offshore Northern
California: U.S. Geological Survey Bulletin 2022, 359 p.<BR>
<HR>
Morton, Janet L., Zierenberg, Robert A., and Reiss, Carol A., 1994, Geologic,
hydrothermal, and biologic studies at Escanaba Trough; an introduction, in Morton,
Janet L., Zierenberg, Robert A., and Reiss, Carol A., eds., Geologic, hydrothermal,
and biologic studies at Escanaba Trough, Gorda Ridge, offshore Northern California:
U.S. Geological Survey Bulletin 2022, p. 1-18.<BR>
<HR>
Morton, Janet L., and Fox, Christopher G., 1994, Structural setting and interaction
of volcanism and sedimentation at Escanaba Trough; geophysical results, in Morton, Janet
L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal, and biologic
studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological
Survey Bulletin 2022, p. 21-43.<BR>
<HR>
Davis, Earl E., and Becker, Keir, 1994, Thermal and tectonic structure of Escanaba
Trough; new heat-flow measurements and seismic-reflection profiles, in Morton, Janet
L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal, and biologic
studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological
Survey Bulletin 2022, p. 45-64. <BR>
<HR>
Denlinger, Roger P., and Holmes, Mark L., 1994, A thermal and mechanical model for
sediment hills and associated sulfide deposits along Escanaba Trough, in Morton, Janet
L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal, and biologic
studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological
Survey Bulletin 2022, p. 65-75.<BR>
<HR>
Karlin, Robert E., and Morton, Janet L., 1994, Crustal magnetization and basement
structure of Escanaba Trough, in Morton, Janet L., Zierenberg, Robert A., Reiss, Carol
A., eds., Geologic, hydrothermal, and biologic studies at Escanaba Trough, Gorda Ridge,
offshore Northern California: U.S. Geological Survey Bulletin 2022, p. 77-90.<BR>
<HR>
Normark, William R., Gutmacher, Christina E., Zierenberg, Robert A., Wong, Florence L.,
and Rosenbauer, Robert J., 1994, Sediment fill of Escanaba Trough, in Morton, Janet
L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal, and biologic
studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological
Survey Bulletin 2022, p. 91-129.<BR>
<HR>
Karlin, Robert E., and Zierenberg, Robert A., 1994, Sedimentation and neotectonism
in the SESCA area, Escanaba Trough, southern Gorda Ridge, in Morton, Janet
L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal, and biologic
studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological
Survey Bulletin 2022, p. 131-141.<BR>
<HR>
Ross, Stephanie L., and Zierenberg, Robert A., 1994, Volcanic geomorphology of the SESCA
and NESCA sites, Escanaba Trough, in Morton, Janet
L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal, and biologic
studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological
Survey Bulletin 2022, p. 143-151.<BR>
<HR>
Davis, Alice S., Clague, David A., and Friesen, Walter B., 1994, Petrology and mineral
chemistry of basalt from Escanaba Trough, in Morton, Janet
L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal, and biologic
studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological
Survey Bulletin 2022, p. 153-170.<BR>
<HR>
Campbell, Andrew C., German, Chris R., Palmer, Martin R., Gamo, Toshitaka, and Edmond,
John M., 1994, Chemistry of hydrothermal fluids from Escanaba Trough, Gorda Ridge, in
Morton, Janet L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal,
and biologic studies at Escanaba Trough, Gorda Ridge, offshore Northern California:
U.S. Geological Survey Bulletin 2022, p. 201-221.<BR>
<HR>
Bohlke, J.K., and Shanks, W.C., III, 1994, Stable isotope study of hydrothermal vents
at Escanaba Trough; observed and calculated effects of sediment-seawater interaction,
in Morton, Janet L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal,
and biologic studies at Escanaba Trough, Gorda Ridge, offshore Northern California:
U.S. Geological Survey Bulletin 2022, p. 223-239.<BR>
<HR>
Magenheim, Andrew J., and Gieskes, Joris M., 1994, Evidence for hydrothermal fluid flow
through surficial sediments, Escanaba Trough, in Morton, Janet L., Zierenberg, Robert A.,
Reiss, Carol A., eds., Geologic, hydrothermal, and biologic studies at Escanaba Trough,
Gorda Ridge, offshore Northern California: U.S. Geological Survey Bulletin 2022,
p. 241-255.<BR>
<HR>
Zierenberg, Robert A., and Shanks, Wayne C., III, 1994, Sediment alteration associated
with massive sulfide formation in Escanaba Trough, Gorda Ridge; the importance of seawater
mixing and magnesium metasomatism, in Morton, Janet L., Zierenberg, Robert A., Reiss,
Carol A., eds., Geologic, hydrothermal, and biologic studies at Escanaba Trough,
Gorda Ridge, offshore Northern California: U.S. Geological Survey Bulletin 2022,
p. 257-277.<BR>
<HR>
Kvenvolden, Keith A., Rapp, John B., and Hostettler, Frances D., 1994, Hydrocarbons in
sediment from Escanaba Trough, in Morton, Janet L., Zierenberg, Robert A., Reiss,
Carol A., eds., Geologic, hydrothermal, and biologic studies at Escanaba Trough,
Gorda Ridge, offshore Northern California: U.S. Geological Survey Bulletin 2022,
p. 279-292.<BR>
<HR>
Koski, Randolph A., Benninger, Laura M., Zierenberg, Robert A., and Jonasson, Ian R.,
1994, Composition and growth history of hydrothermal deposits in Escanaba Trough,
southern Gorda Ridge, in Morton, Janet L., Zierenberg, Robert A., Reiss, Carol A.,
eds., Geologic, hydrothermal, and biologic studies at Escanaba Trough, Gorda Ridge,
offshore Northern California: U.S. Geological Survey Bulletin 2022, p. 293-324.<BR>
<HR>
Grassle, J. Frederick, and Petrecca, Rosemarie F., 1994, Soft-sediment hydrothermal
vent communities of Escanaba Trough, in Morton, Janet L., Zierenberg, Robert A.,
Reiss, Carol A., eds., Geologic, hydrothermal, and biologic studies at Escanaba
Trough, Gorda Ridge, offshore Northern California: U.S. Geological Survey Bulletin
2022, p. 327-335.<BR>
<HR>
Quinterno, Paula J., 1994, Quaternary foraminifers from Escanaba Trough, Northeast
Pacific Ocean, in Morton, Janet L., Zierenberg, Robert A., Reiss, Carol A., eds.,
Geologic, hydrothermal, and biologic studies at Escanaba Trough, Gorda Ridge, offshore
Northern California: U.S. Geological Survey Bulletin 2022, p. 337-359.<BR>
<HR>
Reiss, Carol A., and Zierenberg, Robert A., 1994, Preliminary report of the 1988
A2-88-NC Gorda Ridge cruise: U.S. Geological Survey Open-File Report 94-0711, 109 p.<BR>

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/>, 20130331, Data of field activity A-2-88-NC in Escanaba Trough from 06/02/1988 to 06/13/1988: 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: -127.51667
    East_Bounding_Coordinate: -127.45000
    North_Bounding_Coordinate: 41.10000
    South_Bounding_Coordinate: 40.96667

  3. What does it look like?

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

    Beginning_Date: 02-Jun-1988
    Ending_Date: 13-Jun-1988
    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: Escanaba Trough
      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.

      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?

    Rob Zierenberg (USGS Western Region); Stephanie Ross (USGS Western Region); Randy Koski (USGS Western Region); Wayne C. Shanks III (USGS); John Slack (USGS); Chuck Heywood (USGS); John Edmond (Massachusetts Institute of Technology); Andy Campbell (Massachusetts Institute of Technology); Martin Palmer (Massachusetts Institute of Technology); Chris Germanr (Massachusetts Institute of Technology); Rob Sherrell (Massachusetts Institute of Technology); Cindy Van Dover (Woods Hole Oceanographic Institute); Fred Grassle (Woods Hole Oceanographic Institute); Bruce Taylor (Geological Society of Canada); Andy Magenheim (Scripps Institute of Oceanography); Yoshitaka Gamo (University of Tokyo); William Sangray (Cornell)

  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: 13-Jan-2011 (process 1 of 1)
    Navigation Data Unknown

    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:

    Other_Citation_Details:
    Reiss, Carol A., and Zierenberg, Robert A., 1994, Preliminary Report of the 1988 A2-88-NC Gorda Ridge Cruise, U.S.G.S. Open File Report 94-711, 109 pp. Morton, Janet L., Zierenberg, Robert A., and Reiss, Carol A., eds., 1994, Geologic, hydrothermal, and biologic studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological Survey Bulletin 2022, 359 p. Morton, Janet L., Zierenberg, Robert A., and Reiss, Carol A., 1994, Geologic, hydrothermal, and biologic studies at Escanaba Trough; an introduction, in Morton, Janet L., Zierenberg, Robert A., and Reiss, Carol A., eds., Geologic, hydrothermal, and biologic studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological Survey Bulletin 2022, p. 1-18. Morton, Janet L., and Fox, Christopher G., 1994, Structural setting and interaction of volcanism and sedimentation at Escanaba Trough; geophysical results, in Morton, Janet L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal, and biologic studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological Survey Bulletin 2022, p. 21-43. Davis, Earl E., and Becker, Keir, 1994, Thermal and tectonic structure of Escanaba Trough; new heat-flow measurements and seismic-reflection profiles, in Morton, Janet L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal, and biologic studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological Survey Bulletin 2022, p. 45-64. Denlinger, Roger P., and Holmes, Mark L., 1994, A thermal and mechanical model for sediment hills and associated sulfide deposits along Escanaba Trough, in Morton, Janet L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal, and biologic studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological Survey Bulletin 2022, p. 65-75. Karlin, Robert E., and Morton, Janet L., 1994, Crustal magnetization and basement structure of Escanaba Trough, in Morton, Janet L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal, and biologic studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological Survey Bulletin 2022, p. 77-90. Normark, William R., Gutmacher, Christina E., Zierenberg, Robert A., Wong, Florence L., and Rosenbauer, Robert J., 1994, Sediment fill of Escanaba Trough, in Morton, Janet L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal, and biologic studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological Survey Bulletin 2022, p. 91-129. Karlin, Robert E., and Zierenberg, Robert A., 1994, Sedimentation and neotectonism in the SESCA area, Escanaba Trough, southern Gorda Ridge, in Morton, Janet L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal, and biologic studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological Survey Bulletin 2022, p. 131-141. Ross, Stephanie L., and Zierenberg, Robert A., 1994, Volcanic geomorphology of the SESCA and NESCA sites, Escanaba Trough, in Morton, Janet L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal, and biologic studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological Survey Bulletin 2022, p. 143-151. Davis, Alice S., Clague, David A., and Friesen, Walter B., 1994, Petrology and mineral chemistry of basalt from Escanaba Trough, in Morton, Janet L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal, and biologic studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological Survey Bulletin 2022, p. 153-170. Campbell, Andrew C., German, Chris R., Palmer, Martin R., Gamo, Toshitaka, and Edmond, John M., 1994, Chemistry of hydrothermal fluids from Escanaba Trough, Gorda Ridge, in Morton, Janet L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal, and biologic studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological Survey Bulletin 2022, p. 201-221. Bohlke, J.K., and Shanks, W.C., III, 1994, Stable isotope study of hydrothermal vents at Escanaba Trough; observed and calculated effects of sediment-seawater interaction, in Morton, Janet L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal, and biologic studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological Survey Bulletin 2022, p. 223-239. Magenheim, Andrew J., and Gieskes, Joris M., 1994, Evidence for hydrothermal fluid flow through surficial sediments, Escanaba Trough, in Morton, Janet L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal, and biologic studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological Survey Bulletin 2022, p. 241-255. Zierenberg, Robert A., and Shanks, Wayne C., III, 1994, Sediment alteration associated with massive sulfide formation in Escanaba Trough, Gorda Ridge; the importance of seawater mixing and magnesium metasomatism, in Morton, Janet L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal, and biologic studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological Survey Bulletin 2022, p. 257-277. Kvenvolden, Keith A., Rapp, John B., and Hostettler, Frances D., 1994, Hydrocarbons in sediment from Escanaba Trough, in Morton, Janet L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal, and biologic studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological Survey Bulletin 2022, p. 279-292. Koski, Randolph A., Benninger, Laura M., Zierenberg, Robert A., and Jonasson, Ian R., 1994, Composition and growth history of hydrothermal deposits in Escanaba Trough, southern Gorda Ridge, in Morton, Janet L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal, and biologic studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological Survey Bulletin 2022, p. 293-324. Grassle, J. Frederick, and Petrecca, Rosemarie F., 1994, Soft-sediment hydrothermal vent communities of Escanaba Trough, in Morton, Janet L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal, and biologic studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological Survey Bulletin 2022, p. 327-335. Quinterno, Paula J., 1994, Quaternary foraminifers from Escanaba Trough, Northeast Pacific Ocean, in Morton, Janet L., Zierenberg, Robert A., Reiss, Carol A., eds., Geologic, hydrothermal, and biologic studies at Escanaba Trough, Gorda Ridge, offshore Northern California: U.S. Geological Survey Bulletin 2022, p. 337-359. Reiss, Carol A., and Zierenberg, Robert A., 1994, Preliminary report of the 1988 A2-88-NC Gorda Ridge cruise: U.S. Geological Survey Open-File Report 94-0711, 109 p.


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 (a-2-88-nc.050 [SINS])
YYYYMMDDHHMMSST    YYYYMMDDHHMMSST
198801010101000    198801050101000
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 A-2-88-NC data set <http://walrus.wr.usgs.gov/infobank/a/a288nc/html/a-2-88-nc.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: 0.1
Network links: <http://walrus.wr.usgs.gov/infobank/a/a288nc/html/a-2-88-nc.nav.html>

  • Cost to order the data: None

    • Who wrote the metadata?

    Dates:
    Last modified: 31-Mar-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 Sun Mar 31 07:09:21 2013