Continental shelf sediments, Columbia River to Cape Blanco, Oregon

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Frequently-anticipated questions:

What does this data set describe?

Continental shelf sediments, Columbia River to Cape Blanco, Oregon
"The continental shelf is the shallow platform adjacent to the continent. It extends from the line of permanent immersion to the depth at which there is a marked increase in slope to greater depth. Variations in the textural parameters of shelf sediments may be used to indicate processes of sedimentation. A detailed study was made of the continental shelf an dupper continental slope sediments off Oregon from the Columbia River to Cape Blanco. Five hundred and fifty samples were collected on a three-mile grid out to a depth of 200 fathoms."
Office of Naval Research contract NONR 1286 (10); Data digitized by the USGS for inclusion into usSEABED. (<>)
  1. How should this data set be cited?

    Erwin John Runge, Jr., 1966, Continental shelf sediments, Columbia River to Cape Blanco, Oregon: Oregon State University, Corvallis, OR.

    Other_Citation_Details: PhD dissertation

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -124.915
    East_Bounding_Coordinate: -123.96167
    North_Bounding_Coordinate: 46.33333
    South_Bounding_Coordinate: 42.93333

  3. What does it look like?

    Runge_PhD_1966 (JPG)
    Screen grab of sample distribution, with coastline and bathymetry for reference.

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

    Calendar_Date: 1966
    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 (550)

    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?

    SDTS point (Source: Source report)

    Sample number
    Sample number (Source: Oregon State University)

    Alpha numeric code based on year, month, sample number

    Amount of gravel in sample (Source: Wentworth 1938)

    No gravel values recorded but mentioned in text (pg. 52) as found in water depths of 20 to 40 fathoms (36 to 73 meters), with pebbles over a centimeter in length.

    Amount of sand in sample (Source: Wentworth 1938)

    Range of values

    Amount of silt in sample (Source: Wentworth 1938)

    Range of values

    Amount of clay in sample (Source: Wentworth 1938)

    Range of values

    Median grainsize (Source: Source report)

    Range of values

    Mean grainsize (Source: Inman 1952)

    Range of values

    Standard deviation
    Standard deviation of grainsize (Source: Inman 1952)

    Range of values

    First skewness
    First skewness of grainsize (Source: Inman 1952)

    Range of values

    Second skewness
    Second skewness of grainsize (Source: Inman 1952)

    Range of values

    Kurtosis of grainsize (Source: Inman 1952)

    Range of values

    Lithology (Source: Source report)

    Lithologic description of sample sites where no sediment could be sampled, or subsample descriptions of gravity cores

    Glauconite in sand (Source: Source report)

    Range of values

    Heavy mineral counts of selected samples
    Heavy minerals in sand fraction (Source: Source report)

    Range of values

    Heavy mineralogy of selected samples
    Percent of selected minerals (out of 100 % heavy minerals). (Source: Source report)

    Percents of actinolite, apatite, augite (including titanoaugite), basaltic hornblende, diopside, enstatite, epidote, garnet, glaucophane, hematite, hornblende, hypersthene, kyanite, olivine, opaque minerals (magnetite, ilmenite, and chromite), rutile, sphene, spinel, staurolite, tourmaline, tremolite, zircon, weathered grains and leucoxene, undifferentiated, and composite grains. Measurements probably of sand fraction.

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?

    Erwin John, Jr. at Oregon State University for the collection and analysis of data. For inclusion into usSEABED: Digitization: Jane Reid (USGS); Formatting corrections: Jane Reid (USGS) and Chris Jenkins (University of Colorado)

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

    College of Oceanic and Atmospheric Sciences, Oregon State University
    104 COAS Admin Bldg
    Corvallis, OR 97331-5503

    541-737-3504 (voice)

Why was the data set created?

"The purpose ... was (1) to describe the areal distribution of the sediments and their compositional and textural variations, and (2) to use these variations as indiators of sedimentary processes on the continental shelf."

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)
    A Emery settling tube (Emery, 1938)as modified by Poole (1957) was used for the textural analysis of the sand samples. Samples which contained material too coarse for this method were sieved using Tyler screens, 1/4 phi intervals. Sea water was removed from sediments containing silt and clay with millipore filters; the sediment was then dispersed in a 0.2 percent Calgon and analyzed by soils hydrometer technique suggested by the American Society for Testing Materials (1965). Cumulative curves and textural statistics were calculated by IBM 1410 and 1630 computers. Heavy minerals separations were performed by centrifuging as outlined by Fessenden (1959) and Livingston (1964).

    Person who carried out this activity:

    College of Oceanic and Atmospheric Sciences, Oregon State University
    104 COAS Admin Bldg
    Corvallis, OR 97331-5503

    541-737-3504 (voice)

    Data sources used in this process:
    • Emery, 1938
    • Poole, 1957
    • Fessenden, 1959
    • Livingston, 1964

    Data sources produced in this process:

    • Runge_PhD_1966

  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.

  2. How accurate are the geographic locations?

    No navigational techniques given in report. Positions given to minute-tenths.

  3. How accurate are the heights or depths?

    Depth determination technique not given in report. Water depths recorded to nearest fathom.

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

    Locations and depths from appendix 1; textural parameters and statistics from appendix 2; Glauconite in sand percentages from appendix 3; Percent heavy minerals in sand fraction of selected samples; Heavy mineral counts of selected samples from appendix 5 were digitized, except those samples which are originally from Bushnell, 1963 (Runge samples 252-273) and Maloney, 1965 (Runge samples 374-477 and 482-495), which are in usSEABED under those sources.

  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: Thesis is available at libraries.
Cite E.J. Runge, Jr. and Oregon State University as originators of the data.

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

    College of Oceanic and Atmospheric Sciences, Oregon State University
    104 COAS Admin Bldg
    Corvallis, OR 97331-5503

    541-737-3504 (voice)

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

    Varies by library

  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?


Who wrote the metadata?

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

841-427-4727 (voice)

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

Generated by mp version 2.8.17 on Sat May 20 21:46:14 2006