Metadata: Identification_Information: Citation: Citation_Information: Originator: David C. Twichell Publication_Date: 2000 Title: Surficial geology interpretive map from the inner continental shelf off the northern Oregon and southern Washington coast based on sidescan-sonar imagery and sediment samples 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/interp/ 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 represents the surficial geology interpretive map of the inner shelf off the coast of southern Washington and northern Oregon. This interpretation is based on the integration of sidescan-sonar imagery, sediment sample data, and seismic-reflection data. 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: 1974 Ending_Date: 1998 Currentness_Reference: 1998 Status: Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -124.500000 East_Bounding_Coordinate: -123.800000 North_Bounding_Coordinate: +47.350000 South_Bounding_Coordinate: +45.900000 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:2388ccb0-a4b9-4040-836c-66626355d397 Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: ArcView Theme_Keyword: shapefile Theme_Keyword: polygon Theme_Keyword: interpretation Theme_Keyword: surficial geology Theme_Keyword: marine sand Theme_Keyword: marine siltston Theme_Keyword: wisps Theme_Keyword: megaripples Theme_Keyword: lower beach face Theme_Keyword: inner shelf sand Theme_Keyword: mud Theme_Keyword: gravel patch Theme_Keyword: outcrop Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: scientific interpretation Theme_Keyword: sea-floor characteristics Theme_Keyword: marine geology Theme_Keyword: geospatial datasets 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 Temporal: Temporal_Keyword_Thesaurus: None Temporal_Keyword: Tertiary Temporal_Keyword: Holocene Temporal_Keyword: Modern Temporal_Keyword: Quaternary 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: This interpretation was based on a combination of datasets. Interpretive boundaries are most closely constrained where they cross sidescan-sonar imagery lines. Completeness_Report: The interpretation of the inner shelf in this study has a maximum coverage extent equal to that of the sidescan-sonar imagery coverage. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The most accurate interpretation boundaries are where those boundaries cross the sidescan-sonar imagery data. Other boundaries are interpolated based on sediment sample information. Lineage: Process_Step: Process_Description: This interpretive map was drawn interactively in ArcView as a series of polygons and saved as an ArcView shape file. The basis for the interpretive boundaries was the backdrop of sidescan-sonar imagery and sediment sample analyses information. Process_Date: 1999 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: David C. Twichell Contact_Organization: U.S. Geological Survey Contact_Position: Marine Geologist Contact_Address: Address_Type: mailing and physical address Address: U.S. Geological Survery 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: dtwichell@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: Vector 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: interp.dbf Entity_Type_Definition: ArcView shapefile attribute table Entity_Type_Definition_Source: ESRI Attribute: Attribute_Label: Class Attribute_Definition: This field is the classification of the surficial geology represented on the seafloor at that location. The values are as follows: jetty-- man made structure wisps-- modern bedform off the mouth of the Columbia River; bands of moderate backscatter (as seen in the sidescan-sonar imagery) superimposed on a backgroun of low backscatter megaripples-- modern bedform off the mouth of the three bays in the study area; 2-4 m wavelengths with crestlines oriented roughly parallel to bathymetric contours lower beach face-- modern textural unit occuring along the shoreward edge of the study area; seaward limit is defined where the mean grain size becomes finer than 3 phi inner shelf sand-- modern textural unit seaward of the lower beach face unit; seaward limit defined where the sediment mud content exceeds 25% mud-- modern textural unit typically along the seaward edge of the study area; defined where sediement mud content exceeds 25% gravel patches-- areas where sediment content contains grain sizes from 2 mm up to 2 cm outcrop-- includes all types of pre-Quaternary strata exposed on the seafloor Attribute_Definition_Source: Data interpreter - David C. Twichell Attribute_Domain_Values: Unrepresentable_Domain: character set Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Nancy Soderberg Contact_Organization: U.S. Geological Survey Contact_Position: Data Librarian 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: 508-457-2313 Contact_Electronic_Mail_Address: nsoderberg@usgs.gov Resource_Description: U.S. Geological Survey CD-ROM Open-File Report Distribution_Liability: This Compact Disc-Read Only Memory (CD-ROM) publication was prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Any views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Although all data published on this CD-ROM have been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and related materials and/or the functioning of the software. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of this data, software, or related materials. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: shapefile File_Decompression_Technique: No compression applied Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://pubs.usgs.gov/of/2000/of00-167/data/interp/ Network_Resource_Name: https://pubs.usgs.gov/of/2000/of00-167/data/interp/interp.shp Network_Resource_Name: https://pubs.usgs.gov/of/2000/of00-167/data/interp/interp.shx Network_Resource_Name: https://pubs.usgs.gov/of/2000/of00-167/data/interp/interp.dbf Access_Instructions: The first link is to the folder containing the shapefile. The next three links are for the components of the shapefile. All three files are necessary in order to use the data in a GIS. Offline_Option: Offline_Media: CD-ROM Recording_Capacity: Recording_Density: 650 Recording_Density_Units: MBytes Recording_Format: ISO 9600 with Rock Ridge extensions Compatibility_Information: UNIX, DOS, MAC Fees: none at this time Technical_Prerequisites: This interpretation is available in ArcView shapefile format. The user must have ArcView, Arc Explorer, or another GIS package capable of importing and reading these data. Metadata_Reference_Information: Metadata_Date: 20200908 Metadata_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 Country: USA Contact_Voice_Telephone: 508-548-8700 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: vatnipp@usgs.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998