Sediment Grab Samples from the inner continental shelf off the northern Oregon and southern Washington coast from U.S. Geological Survey field activity 1998-014-FA

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Metadata:

Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: David C. Twichell
Publication_Date: 2000
Title:

Sediment Grab Samples from the inner continental shelf off the northern Oregon and southern Washington coast from U.S. Geological Survey field activity 1998-014-FA

Series_Information:

Series_Name: Open-File Report
Issue_Identification: 00-167

Publication_Information:

Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program

Online_Linkage: https://doi.org/10.3133/ofr00167
Online_Linkage: https://pubs.usgs.gov/of/2000/of00-167/data/samples/
Larger_Work_Citation:

Citation_Information:

Originator: David C. Twichell
Originator: VeeAnn A. Cross
Originator: Kenneth F. Parolski
Publication_Date: 2000
Title:

Sidescan-sonar Imagery, Surface Sediment Samples, and Surficial Geologic Interpretation of the Southwestern Washington Inner Continental Shelf Based on Data Collected During Corliss Cruises 97007 and 98014

Series_Information:

Series_Name: Open-File Report
Issue_Identification: 00-167

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage: https://pubs.usgs.gov/of/2000/of00-167/

Description:

Abstract:

Two 21-day field operations were conducted in 1997 and 1998 in the estuaries and on the inner continental shelf off the northern Oregon and southern Washington coast. These cruises aboard the R/V Corliss were run in order to generate reconnaissance maps of the seafloor geology and the shallow subsurface stratigraphy using sidescan-sonar and seismic-reflection mapping techniques. The 1998 cruise also collected sediment grab samples, bottom photographs, and video images to verify the sidescan-sonar imagery and to document the seafloor geology. The combination of these data with previously collected sediment sample data (Robert, 1974; Nittrouer, 1978; and Smith et. al., 1980) has been used to define the extent and lithology of shelf sediments associated with the Columbia River littoral cell. This work is one component of a larger project studying the erosion of the Washington Oregon coasts and is being coordinated by the U.S. Geological Survey and the Washington State Department of Ecology. The reasons for collecting these data are to provide a regional synthesis of the offshore geology for this project and to support a wide variety of management decisions and to provide a basis for further process-oriented investigations.

Purpose:

This GIS overlay contains sediment sample locations and analyses information collected aboard the R/V Corliss in 1998.

Supplemental_Information:

Roberts, R.W., 1974, Marine sedimentological data of the Washington continental shelf: University of Washington, Department of Oceanography Special Report 57, 129p. Nittrouer, C.A., 1978, The process of detrital sediment accumulation in a continental shelf environment: an examination of the Washington shelf: PhD Thesis, University of Washington, Seattle, WA. 243p.
Smith, J.M., Messmer, L.W., Phipps, J.B., Samuelson, D.F., and Schermer, E.D., 1980, Grays Harbor and Chehalis River improvements to navigation environmental studies - Grays Harbor ocean disposal study: literature review and preliminary benthic sampling: U.S. Army Corps of Engineers Internal Report.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19980828
Ending_Date: 19980916

Currentness_Reference: 1998

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -124.500000
East_Bounding_Coordinate: -123.080000
North_Bounding_Coordinate: +47.350000
South_Bounding_Coordinate: +45.900000

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:0d0a051f-5fb8-4365-9d32-8094189ccdbf

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: ArcView
Theme_Keyword: shapefile
Theme_Keyword: surficial geology
Theme_Keyword: sediment samples
Theme_Keyword: points
Theme_Keyword: CRLS98014

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans
Theme_Keyword: geoscientificInformation

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: grain-size analysis
Theme_Keyword: navigational data
Theme_Keyword: geospatial datasets
Theme_Keyword: sea-floor characteristics
Theme_Keyword: marine geology

Place:

Place_Keyword_Thesaurus: None
Place_Keyword: Pacific Ocean
Place_Keyword: Washington
Place_Keyword: Oregon
Place_Keyword: WA
Place_Keyword: OR
Place_Keyword: Columbia River
Place_Keyword: Columbia River littoral cell
Place_Keyword: Inner shelf
Place_Keyword: Washington continental shelf
Place_Keyword: Washington coastal zone

Temporal:

Temporal_Keyword_Thesaurus: General
Temporal_Keyword: Modern

Access_Constraints: None
Use_Constraints:

The U.S. Geological Survey must be referenced as the originator of the dataset in any future products or research derived from these data.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: David C. Twichell
Contact_Organization: U.S. Geological Survey

Contact_Position: Oceanographer
Contact_Address:

Address_Type: mailing and physical address
Address:

U.S. Geological Survey
Woods Hole Field Center
384 Woods Hole Road

City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA

Contact_Voice_Telephone: 508-548-8700
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: dtwichell@usgs.gov

Data_Quality_Information:

Logical_Consistency_Report:

Each sediment sample was analyzed using the same techniques, therefore highly consistent.

Completeness_Report:

All sediment samples acquired on the cruise CRLS98014 are presented in this dataset.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

These navigational points actually represent the ship's position. No instrumentation was on board to give the sediment sampler's position while on the seafloor. However, most of the samples were taken in fairly shallow water, therefore the potential for ship offset due to wire angle is minimized.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

Although depth measurements were taken with an Odem fathometer, the criteria for taking these measurements is not particularly strict. A rough estimate of vertical accuracy is +/- 1 meter.

Lineage:

Process_Step:

Process_Description:

The sediment sample locations and associated sample identification were logged shipboard. Sediment analyses were performed in the USGS Woods Hole sediment lab. This analyses information was then joined to the sediment sample location in ArcInfo. The data were then converted to ArcView shapefiles.

Process_Date: 1998
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: VeeAnn A. Cross
Contact_Organization: U.S. Geological Survey

Contact_Position: Marine Geologist
Contact_Address:

Address_Type: mailing and physical address
Address:

U.S. Geological Survey
Woods Hole Field Center
384 Woods Hole Rd.

City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598

Contact_Voice_Telephone: 508-548-8700
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov

Process_Step:

Process_Description:

Edits to the metadata were made to fix any errors that MP v 2.9.36 flagged. This is necessary to enable the metadata to be successfully harvested for various data catalogs. In some cases, this meant adding text "Information unavailable" or "Information unavailable from original metadata" for those required fields that were left blank. Other minor edits were probably performed (title, publisher, publication place, etc.). The original metadata was available in HTML only, so had to be reformatted. The citation in the identification section was completely redone, including adding links to the data and larger work citation. Added ISO 19115 Topic Category keywords. The standard order process section in the distribution was modified to include the link to the data. The distribution format name was modified in an attempt to be more consistent with other metadata files of the same data format. The metadata date (but not the metadata creator) was edited to reflect the date of these changes. The metadata available from a harvester may supersede metadata bundled within a download file. Compare the metadata dates to determine which metadata file is most recent.

Process_Date: 20170331
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross

Contact_Position: Marine Geologist
Contact_Address:

Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598

Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov

Process_Step:

Process_Description: USGS Thesaurus keywords added to the keyword section.
Process_Date: 20180720
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross

Contact_Position: Marine Geologist
Contact_Address:

Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598

Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov

Process_Step:

Process_Description: Crossref DOI link was added as the first link in the metadata.
Process_Date: 20191118
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross

Contact_Position: Marine Geologist
Contact_Address:

Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598

Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov

Process_Step:

Process_Description:

Added keywords section with USGS persistent identifier as theme keyword.

Process_Date: 20200908
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross

Contact_Position: Marine Geologist
Contact_Address:

Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598

Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Point

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.00018
Longitude_Resolution: 0.00026
Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257222101

Vertical_Coordinate_System_Definition:

Depth_System_Definition:

Depth_Datum_Name: Local surface
Depth_Resolution: 2
Depth_Distance_Units: Meters
Depth_Encoding_Method: Attribute values

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: grabsamp.dbf
Entity_Type_Definition: ArcView shapefile attribute table
Entity_Type_Definition_Source: ESRI

Attribute:

Attribute_Label: Long
Attribute_Definition: Longitude coordinate of sample recorded in decimal degrees.
Attribute_Definition_Source: Data processor - VeeAnn A. Cross
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -124.3323
Range_Domain_Maximum: -123.9635
Attribute_Units_of_Measure: Decimal degrees

Attribute:

Attribute_Label: Lat
Attribute_Definition: Latitude coordinate of sample recorded in decimal degrees.
Attribute_Definition_Source: Data processor - VeeAnn A. Cross
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 46.0501
Range_Domain_Maximum: 47.1894
Attribute_Units_of_Measure: Decimal degrees

Attribute:

Attribute_Label: Samp_id
Attribute_Definition:

Sediment sample identification label assigned in the published literature.

Attribute_Definition_Source: Sample collector
Attribute_Domain_Values:

Unrepresentable_Domain: character field

Attribute:

Attribute_Label: Gravel
Attribute_Definition:

Percentage of total sediment sample larger than or equal to -1 phi (>= 2.0 mm)

Attribute_Definition_Source:

Based on the Udden-Wentworth sediment classification scale, with the phi scale devised by Krumbein.

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 74.85
Attribute_Units_of_Measure: Percentage of total sample.

Attribute:

Attribute_Label: Sand
Attribute_Definition:

Percentage of total sediment sample that falls in the range of less than -1 phi (2.0 mm) to 4.0 phi (62.5 µm).

Attribute_Definition_Source:

Based on the Udden-Wentworth sediment classification scale, with the phi scale devised by Krumbein.

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 15.09
Range_Domain_Maximum: 99.66

Attribute:

Attribute_Label: Silt
Attribute_Definition:

Percentage of total sediment sample that falls in the range of less than 4 phi (62.5 µm) to 8.0 phi (3.91 µm).

Attribute_Definition_Source:

Based on the Udden-Wentworth sediment classification scale, with the phi scale devised by Krumbein.

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.10
Range_Domain_Maximum: 73.36

Attribute:

Attribute_Label: Clay
Attribute_Definition: Percentage of total sediment sample less than 8 phi (3.91 µm).
Attribute_Definition_Source:

Based on the Udden-Wentworth sediment classification scale, with the phi scale devised by Krumbein.

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.02
Range_Domain_Maximum: 11.55

Attribute:

Attribute_Label: Siltclay
Attribute_Definition:

Percentage of total sediment sample that falls in the silt plus clay fraction i.e. less than 4 phi (62.5 µm).

Attribute_Definition_Source:

User defined based on the Udden-Wentworth sediment classification scheme.

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.12
Range_Domain_Maximum: 84.91

Attribute:

Attribute_Label: Depth_m
Attribute_Definition:

Distance from the sea surface to the sea floor where the sediment sample was taken - measured in meters.

Attribute_Definition_Source: User defined.
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 73.00
Attribute_Units_of_Measure: meters

Attribute:

Attribute_Label: Class
Attribute_Definition:

gravel>10%--- any sample that has more than 10% gravel sand---sample has > 75% sand but < 10% gravel
sandy_silt---sample has 50-75% silt, 20-50% sand, < 20% clay
silty_sand---sample has 50-75% sand, 20-50% silt, < 20% clay
no_sample--- no sediment sample was colletected, but this location is retained because either seafloor video or photos were taken.

Attribute_Definition_Source:

User defined based on Udden-Wentworth and modified Shepard classification scheme.

Attribute_Domain_Values:

Unrepresentable_Domain: character field

Attribute:

Attribute_Label: Median
Attribute_Definition:

Computed median phi of the sediment sample derived using method of moments statistics (Folk, 1974).

Attribute_Definition_Source: Computed - user defined.
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -2.21
Range_Domain_Maximum: 5.34
Attribute_Units_of_Measure: phi

Attribute:

Attribute_Label: Mean
Attribute_Definition:

Computed mean phi of the sediment sample derived using method of moments statistics (Folk, 1974).

Attribute_Definition_Source: Computed - user defined.
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -1.97
Range_Domain_Maximum: 5.41
Attribute_Units_of_Measure: phi

Attribute:

Attribute_Label: Stddev
Attribute_Definition:

Computed standard deviation of the sediment sample derived using method of moments statistics (Folk, 1974).

Attribute_Definition_Source: Computed - user defined.
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.24
Range_Domain_Maximum: 2.11

Attribute:

Attribute_Label: Skew
Attribute_Definition:

Computed skewness of the sediment sample derived using method of moments statistics (Folk, 1974).

Attribute_Definition_Source: Computed - user defined.
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -1.64
Range_Domain_Maximum: 8.85

Attribute:

Attribute_Label: Kurt
Attribute_Definition:

Computed kurtosis of the sediment sample derived using method of moments statistics (Folk, 1974).

Attribute_Definition_Source: Computed - user defined.
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -0.83
Range_Domain_Maximum: 364.37

Attribute:

Attribute_Label: Phi11
Attribute_Definition: Percentage of total sediment sample < 0.97 µm
Attribute_Definition_Source: User defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 1.56

Attribute:

Attribute_Label: Phi10
Attribute_Definition:

Percentage of total sediment sample that falls in the range of 1.95 µm > x > 0.97 µm.