Inner continental shelf sediments in the vicinity of Cape Flattery, Washington

Metadata also available as - [Outline] - [Parseable text] - [XML]

Frequently-anticipated questions:

What does this data set describe?

Title:
Inner continental shelf sediments in the vicinity of Cape Flattery, Washington
Abstract:
The principal objective of this project is to describe mineral and textural properties of the sediments in the vicinity of Cape Flattery -- the northern extreme of Washington's Pacific Coast.
Supplemental_Information:
This study has been part of a cooperative project by the Department of Oceanography and the Marine Geology Branch of the U.S. Geological Survey. Supported by Department of Interior, U.S. Geological Survey Grant 14-08-0001-10924. Data digitized by the USGS for inclusion into usSEABED (<http://walrus.wr.usgs.gov/usseabed>)
  1. How should this data set be cited?

    Hands, Edward B. , 1968, Inner continental shelf sediments in the vicinity of Cape Flattery, Washington: Special Report No. 40, University of Washington, Seattle, WA.

    Other_Citation_Details:
    Department of Oceanography U.S. Geological Survey Grant 14-08-0001-10924 Reference: M68-69

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -124.872
    East_Bounding_Coordinate: -124.500
    North_Bounding_Coordinate: 48.233
    South_Bounding_Coordinate: 48.250

  3. What does it look like?

    SpecRep40 (JPG)
    Screen grab of GIS-produced sample distribution, with bathymetry and land for reference.

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

    Beginning_Date: 1967
    Ending_Date: 1967
    Currentness_Reference: publication date

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

    Geospatial_Data_Presentation_Form: paper

  6. How does the data set represent geographic features?

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

      This is a Vector data set. It contains the following vector data types (SDTS terminology):

      • Point (30)

    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 0.00167. Longitudes are given to the nearest 0.00167. Latitude and longitude values are specified in decimal degrees.

  7. How does the data set describe geographic features?

    Point
    SDTS point (Source: Source report)

    Sample number
    Sample number (Source: University of Washington)

    Number based on core information

    HB
    Amphibole (Source: Source report)

    Range of values
    Minimum:7
    Maximum:17
    Units:Percent of heavy mineral count
    Resolution:1

    Chl
    Chlorite (Source: Source report)

    Range of values
    Minimum:0
    Maximum:10
    Units:Percent of bulk mineralogy count
    Resolution:1

    Ch
    Chert (Source: Source report)

    Range of values
    Minimum:6
    Maximum:49
    Units:Percent of bulk mineralogy count
    Resolution:1

    Cxp
    Clinopyroxene (Source: Source report)

    Range of values
    Minimum:10
    Maximum:33
    Units:Percent of heavy mineral count
    Resolution:1

    Epd
    Epidote (Source: Source report)

    Range of values
    Minimum:0
    Maximum:4
    Units:Percent of heavy mineral count
    Resolution:1

    Foram
    Foraminifera (Source: Source report)

    Range of values
    Minimum:0
    Maximum:4
    Units:Percent of bulk mineralogy count
    Resolution:1

    Gar
    Garnet (Source: Source report)

    Range of values
    Minimum:1
    Maximum:9
    Units:Percent of heavy mineral count
    Resolution:1

    Ign. rk
    Igneous rock (Source: Source report)

    Range of values
    Minimum:5
    Maximum:37
    Units:Percent of bulk mineralogy count
    Resolution:1

    K-feld
    K feldspar (Source: Source report)

    Range of values
    Minimum:1
    Maximum:19
    Units:Percent of bulk mineralogy count
    Resolution:1

    Maf
    Mafic (Source: Source report)

    Range of values
    Minimum:0
    Maximum:8
    Units:Percent of heavy mineral count
    Resolution:1

    Opq
    Opaque minerals (Source: Source report)

    Range of values
    Minimum:8
    Maximum:21
    Units:Percent of heavy mineral count
    Resolution:1

    Oxp
    Orthopyroxene (Source: Source report)

    Range of values
    Minimum:10
    Maximum:29
    Units:Percent of heavy mineral count
    Resolution:1

    Plag
    Plagioclase (Source: Source report)

    Range of values
    Minimum:1
    Maximum:21
    Units:Percent of bulk mineralogy count
    Resolution:1

    Qtz
    Quartz (Source: Source report)

    Range of values
    Minimum:3
    Maximum:38
    Units:Percent of bulk mineralogy count
    Resolution:1

    Rk
    Rock fragments and unidentified grains (Source: Source report)

    Range of values
    Minimum:8
    Maximum:39
    Units:Percent of heavy mineral count
    Resolution:1

    Sed rk
    Sedimentary rock (Source: Source report)

    Range of values
    Minimum:1
    Maximum:23
    Units:Percent of bulk mineralogy count
    Resolution:1

    Sh
    Shell fragments (Source: ?)

    Range of values
    Minimum:0
    Maximum:31
    Units:Percent of bulk mineralogy count
    Resolution:1

    Sph
    Sphene (Source: Source report)

    Range of values
    Minimum:0
    Maximum:2
    Units:Percent of heavy mineral count
    Resolution:1

    V.G.
    Volcanic glass (Source: Source report)

    Range of values
    Minimum:0
    Maximum:5
    Units:Percent of bulk mineralogy count
    Resolution:1

    Zr
    Zircon (Source: Source report)

    Range of values
    Minimum:0
    Maximum:3
    Units:Percent of heavy mineral count
    Resolution:1

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?

    Edward B. Hands at the University of Washington for the collection and analysis of data. For inclusion into usSEABED: digitization Jennifer Mendonca (USGS); Formatting corrections: Jane Reid (USGS); and Chris Jenkins (University of Colorado).

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

    University of Washington
    P.O. Box 357940
    Seattle, WA 98195

    206-543-5060 (voice)

Why was the data set created?

The study of inner continental shelf sediments along Washington's coast has received very little attention except in the area south of Grays Harbor where the Columbia River dominates sedimentation.

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: Unknown (process 1 of 1)
    The separation of heavy minerals (sp. gr. > 3.18 +/- 0.02) was accomplished by centrifuging 2-3 g of the 2.75-4.00 phi size sand in methylene iodide diluted with acetone. The heavy residue was collected, dried, weighed, and then mounted, in its entirety, in hyrax (r.i. = 1.70) for microscopic identification. For usSEABED, data from Technical Report 57, Special Report 39, and Special Report 40 were concatenated together to reduce data overlaps and present data from the same samples together.

    Person who carried out this activity:

    University of Washington
    P.O. Box 357940
    Seattle, WA 98195

    206-543-5060 (voice)

    Data sources produced in this process:
    • SpecRep40

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

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

  1. How well have the observations been checked?

    No estimate made for the accuracy of the data in the original report. Data digitized by the USGS and partners were visually compared to the source data, and corrected. Where appropriate, data were tested for completeness using MS Excel. Locations checked using GIS. Data were concatenated with granulometric data and location information for cruise OC014 from Special Reports 39 and 57.

  2. How accurate are the geographic locations?

    See metadata on University of Washington Special Report 57

  3. How accurate are the heights or depths?

    See metadata on University of Washington Special Report 57.

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

    Data digitized include tables 2 (heavy mineral percentage) and 3 (bulk mineralogy).

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

    Data fall within normal ranges for the given parameters.

How can someone get a copy of the data set?

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

Access_Constraints:
Report is available at libraries and the University of Washington
Use_Constraints:
Cite Edward B. Hands and the University of Washington as originators of the data.

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

    University of Washington
    P.O. Box 357940
    Seattle, WA 98195

    206-543-5060 (voice)

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

    University of Washington Department of Oceanography Special Report 40.

  3. What legal disclaimers am I supposed to read?

    Although this dataset has been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data. Users of the data should be aware of limitations of the data due to possible imprecision due to navigational inaccuracies and limitations of the statistical data.

  4. How can I download or order the data?

  5. What hardware or software do I need in order to use the data set?

    None

Who wrote the metadata?

Dates:
Last modified: 2005
Metadata author:
U.S. Geological Survey
c/o Jane A. Reid
Geologist
400 Natural Bridges Drive
Santa Cruz, CA 95060

831-427-4727 (voice)
jareid@usgs.gov

Contact_Instructions: email preferred
Metadata standard:
CSDGM Version 2 (FGDC-STD-001-1998)

Generated by mp version 2.8.17 on Sat May 20 21:17:52 2006