Identification_Information: Citation: Citation_Information: Originator: Robert Cornelius Roush Publication_Date: 1970 Title: Sediment textures and internal structures: A comparison between central Oregon continental shelf sediments and adjacent coastal sediments. Geospatial_Data_Presentation_Form: Paper Publication_Information: Publication_Place: Corvallis, OR Publisher: Oregon State University Other_Citation_Details: MS Thesis; Research supported by a research assistantship from the U.S. Geological Survey (Contracts 14-08-0001-10766 and 14-08-0001-11941) and in part by National Science Foundation Institutional Sea Grant GH-10 Description: Abstract: "A study of sedimentary structures and sediment texture of beach and continental shelf sediments provides a basis for the interpretation of the recent history of sedimentation on the Oregon continental shelf. The texture of various sediment types suggests that coastal rivers supply a considerable quantity of very fine sand in addition to modern mud to the continental shelf. Relict sediments remain uncovered on areas of the shelf not under the influence of major river runoff and are mixed or covered by modern mud and very fine sand where rivers influence shelf sedimentation. Primary sedimentary structures show that sands ranging from very fine to medium in mean grain size are capable of being moved at shelf water depths from at least 38 to 88 meters. No net transport of sand, however, can be determined from these structures. Organic structures apparently are controlled by water depth and/or grain size and sediment type, which determine faunal composition and concentration. At mid-shelf depths fine sand cores are characterized by shell fragments, worm tubes, and worm trails. Beyond 100 meters water depth worm tubes were not found, but worm trails become abundant and large burrow appear in the sediment." Purpose: "A study of sediments is undertaken to obtain knowledge of environmental factors responsible for the origin, transportation, deposition, and post-depositional changes of a sedimentary deposit. Sedimentary structures and sediment textures are studied in an attempt to define past and present sources of Oregon continental shelf sediments and to understand the processes responsible for their distribution and deposition." Supplemental_Information: Data digitized by the USGS for inclusion into usSEABED. (http://walrus.wr.usgs.gov/usseabed) Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1968 Ending_Date: 1969 Currentness_Reference: Publication date Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -124.868 East_Bounding_Coordinate: -124.047 North_Bounding_Coordinate: 45.002 South_Bounding_Coordinate: 43.810 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Oregon State University Theme_Keyword: College of Oceanic and Atmospheric Sciences Theme_Keyword: Boxcore Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: Oceans and Estuaries Theme_Keyword: Location Theme_Keyword: GeoscientificInformation Theme: Theme_Keyword_Thesaurus: NASA/Global Change Master Directory (GCMD) Earth Science Keyword. Version 5.3.3 Theme_Keyword: Marine Sediments Theme_Keyword: Sedimentary Textures Theme_Keyword: Terrigenous Sediments Place: Place_Keyword_Thesaurus: Geographic Names Information System Place_Keyword: Oregon Access_Constraints: Thesis is available at the USGS library and at other libraries. Use_Constraints: Cite R.C. Roush and Oregon State University as originators of the data. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: College of Oceanic and Atmospheric Sciences, Oregon State University Contact_Address: Address_Type: Physical Address: 104 COAS Admin Bldg City: Corvallis State_or_Province: OR Postal_Code: 97331-5503 Contact_Voice_Telephone: 541-737-3504 Browse_Graphic: Browse_Graphic_File_Name: Roush_MS_1970 Browse_Graphic_File_Description: Screen grab of sample distribution, coastline, and bathymetry Browse_Graphic_File_Type: JPG Data_Set_Credit: Robert Cornelius Roush at Oregon State University for the collection and analysis of data. For inclusion into usSEABED: Digitization: Adam Jackson (USGS); Formatting corrections: Jane Reid (USGS) and Chris Jenkins (University of Colorado) Native_Data_Set_Environment: Tkme: Another editor for formal metadata by Peter N. Schweitzer (U.S. Geological Survey, Reston, VA 22092), version 2.9.13, Microsoft Windows Version 5.1; Microsoft Word 2000 9.0 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: 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. Logical_Consistency_Report: Data fall within normal ranges for the given parameters. Completeness_Report: Appendices I (Box core sample locations), II (Textural analyses of the total sediment continental shelf box cores), and III (Textural analyses of the sand fraction only, continental shelf box cores) were completely digitized for inclusion into usSEABED. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: No navigational technique given in report. Positions given to degrees, minute-tenths. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Water depth determination technique not noted in report. Water depths given in meters. Lineage: Process_Step: Process_Description: Textural data were obtained primarily by particle settling techniques. The coarse fraction (sand) was done by settling tube (Emery, 1938 and Poole, 1957), and the fine fraction (silt and clay) analysis was done by pipette (Krumbein and Pettijohn, 1938). A few samples were too coarse for the settling tube so that sieving at quarter phi intervals was necessary. Source_Used_Citation_Abbreviation: Krumbein and Pettijohn, 1938 Source_Used_Citation_Abbreviation: Emery, 1938 Source_Used_Citation_Abbreviation: Poole, 1957 Process_Date: Unknown Source_Produced_Citation_Abbreviation: Roush_MS_1970 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: College of Oceanic and Atmospheric Sciences, Oregon State University Contact_Address: Address_Type: Physical Address: 104 COAS Admin Bldg City: Corvallis State_or_Province: OR Postal_Code: 97331-5503 Contact_Voice_Telephone: 541-737-3504 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Point Point_and_Vector_Object_Count: 27 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.00167 Longitude_Resolution: 0.00167 Geographic_Coordinate_Units: Decimal degrees Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: Point Entity_Type_Definition: SDTS point Entity_Type_Definition_Source: Source report Attribute: Attribute_Label: Sample number Attribute_Definition: Sample number Attribute_Definition_Source: Oregon State University Attribute_Domain_Values: Unrepresentable_Domain: Alpha numeric code based on year, month, sample number, and subcore information. Attribute: Attribute_Label: Subsample depth Attribute_Definition: Depth of subsample in boxcore Attribute_Definition_Source: Source report Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 0.45 Attribute_Units_of_Measure: Phi Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Gravel Attribute_Definition: Amount of gravel in sample Attribute_Definition_Source: Wentworth 1938 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 33.3 Attribute_Units_of_Measure: Percent Attribute_Measurement_Resolution: 1.0 Attribute: Attribute_Label: Sand Attribute_Definition: Amount of sand in sample Attribute_Definition_Source: Wentworth 1938 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.3 Range_Domain_Maximum: 98.9 Attribute_Units_of_Measure: Percent Attribute_Measurement_Resolution: 1.0 Attribute: Attribute_Label: Silt Attribute_Definition: Amount of silt in sample Attribute_Definition_Source: Wentworth 1938 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 72 Attribute_Units_of_Measure: Percent Attribute_Measurement_Resolution: 1.0 Attribute: Attribute_Label: Clay Attribute_Definition: Amount of clay in sample Attribute_Definition_Source: Wentworth 1938 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 50.2 Attribute_Units_of_Measure: percent Attribute_Measurement_Resolution: 1.0 Attribute: Attribute_Label: Mean Attribute_Definition: Mean grain size Attribute_Definition_Source: Folk 1966 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -0.79 Range_Domain_Maximum: 7.62 Attribute_Units_of_Measure: Phi Attribute_Measurement_Resolution: 0.0001 Attribute: Attribute_Label: Standard deviation Attribute_Definition: Standard deviation of grain size (sorting) Attribute_Definition_Source: Folk 1966 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.28 Range_Domain_Maximum: 4.15 Attribute_Units_of_Measure: Phi Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Skewness Attribute_Definition: Skewness of grain size distribution Attribute_Definition_Source: Folk 1966 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -0.37 Range_Domain_Maximum: 0.91 Attribute_Units_of_Measure: Unitless Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Sand mean Attribute_Definition: Mean grain size of sand fraction Attribute_Definition_Source: Folk 1966 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -0.78 Range_Domain_Maximum: 3.67 Attribute_Units_of_Measure: Phi Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: Sand standard deviation Attribute_Definition: Standard deviation of sand fraction dispersion Attribute_Definition_Source: Folk 1966 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.23 Range_Domain_Maximum: 1.07 Attribute_Units_of_Measure: Phi Attribute_Measurement_Resolution: 0.0001 Attribute: Attribute_Label: Sand skewness Attribute_Definition: Skewness of sand fraction dispersion Attribute_Definition_Source: Folk 1966 Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -0.75 Range_Domain_Maximum: 0.2 Attribute_Units_of_Measure: Unitless Attribute_Measurement_Resolution: 0.01 Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: College of Oceanic and Atmospheric Sciences, Oregon State University Contact_Address: Address_Type: Physical Address: 104 COAS Admin Bldg City: Corvallis State_or_Province: OR Postal_Code: 97331-5503 Contact_Voice_Telephone: 541-737-3504 Resource_Description: R.C. Roush M.S. thesis Distribution_Liability: 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. Standard_Order_Process: Non-digital_Form: Thesis is available at libraries. Fees: None Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: Mail and physical Address: 345 Middlefield Road City: Menlo Park State_or_Province: CA Postal_Code: 94025 Contact_Voice_Telephone: 650.329.5026 Contact_Electronic_Mail_Address: men_lib@usgs.gov Resource_Description: Roush MS 1970 LD4330 1970 R67 Distribution_Liability: 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 the limitations of the data due to possible imprecision due to navigational inaccuracies, statistical limitations, and digitizing errors. Standard_Order_Process: Non-digital_Form: Report is available for viewing or checkout at the USGS library, Menlo Park, and at other libraries. Fees: None Technical_Prerequisites: None Available_Time_Period: Time_Period_Information: Single_Date/Time: Calendar_Date: 1970 Metadata_Reference_Information: Metadata_Date: 2005 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Jane A. Reid Contact_Position: Geologist Contact_Address: Address_Type: Physical and mail Address: 400 Natural Bridges Drive City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-427-4727 Contact_Electronic_Mail_Address: jareid@usgs.gov Contact_Instructions: Email preferred Metadata_Standard_Name: CSDGM Version 2 Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Access_Constraints: None Metadata_Use_Constraints: Metadata was written by a user of the data. Any information contained in the physical report is authoritative and supercedes any information given here.